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Due Diligence Firms in Manchester: Companies and Services Guide

Choosing a due diligence provider in Manchester is not just a formal step before signing a deal. The right adviser can help an organisation understand what it is really buying, investing in, financing, or taking responsibility for – including the risks that may not be obvious at first glance.

Manchester has a broad professional services market, with firms supporting acquisitions, disposals, private equity transactions, funding decisions, commercial reviews, financial checks, and wider business assessments. Some providers work mainly with owner-managed companies and growing businesses, while others support corporate groups, investors, lenders, and management teams involved in more complex transactions.

This guide looks at a selection of due diligence services companies operating in Manchester. It is not written as a ranking. The aim is to give practical context – showing who these firms are, what types of organisations they usually support, and where their due diligence work is most relevant.

Acumon

Acumon is a UK firm of chartered accountants and registered auditors providing financial reporting, audit, governance, risk, and due diligence support to companies, charities, regulated entities, and international corporate groups.

For organisations considering transactions, investment, restructuring, or group-level changes, this background is relevant because due diligence often depends on the same areas that sit behind a reliable audit process – clear financial records, organised supporting documents, internal controls, reporting quality, and a proper understanding of how a business is structured. Acumon works with organisations ranging from growing owner-managed businesses and charities through to larger corporate groups and regulated entities.

Acumon holds a Public Interest Entity (PIE) audit licence, allowing the firm to work with listed companies and other entities subject to enhanced regulatory oversight in the United Kingdom. This matters in due diligence work because regulated and complex organisations often require a more careful review of financial information, governance arrangements, risks, and reporting processes before decisions are made.

In addition to its UK audit registration, Acumon also holds audit licences in several international financial centres, including the Cayman Islands, British Virgin Islands (BVI), Jersey, and Isle of Man. These licences enable the firm to support international corporate groups where entities are located across multiple jurisdictions.

International group structures frequently involve a combination of UK operating companies and offshore holding entities, particularly in sectors such as investment management, technology, energy, and international trade. Due diligence across these structures may require familiarity with cross-border financial reporting, group consolidation, ownership arrangements, and the way financial information moves between different entities.

Acumon works with finance teams, boards, and business owners to support due diligence work while also helping organisations review financial reporting processes, governance arrangements, and internal controls before or during important business decisions.

Due Diligence Capabilities

Acumon provides due diligence support for organisations with different ownership structures, reporting obligations, and regulatory requirements.

These include:

  • UK limited companies and corporate groups
  • Public Interest Entities (PIEs) and regulated organisations
  • UK subsidiaries of international groups
  • charities and not-for-profit organisations
  • owner-managed businesses approaching statutory audit thresholds
  • offshore holding companies and investment vehicles

Due diligence work is typically shaped around the organisation being reviewed, the purpose of the transaction, and the level of financial and governance detail required by management, investors, lenders, or boards.

Regulatory Licences and Registrations

Acumon holds several audit registrations that support its work with organisations operating across multiple jurisdictions and more complex financial structures.

These include:

  • UK statutory audit registration
  • Public Interest Entity (PIE) audit licence
  • Jersey audit licence
  • Isle of Man audit licence
  • Cayman Islands audit licence
  • British Virgin Islands audit licence

These registrations give the firm a useful base for due diligence assignments involving UK entities, offshore structures, regulated organisations, and international corporate groups.

Core Services

Alongside statutory external audit, Acumon provides services that support financial review, transaction readiness, governance, and risk assessment.

These include:

  • statutory external audit
  • group and subsidiary audits
  • Public Interest Entity (PIE) audits
  • charity and not-for-profit audit
  • audit of international group structures
  • internal audit and governance reviews
  • risk management and compliance support

Due diligence work is often connected with discussions around financial reporting quality, internal controls, governance frameworks, and the level of documentation available to support business decisions.

Many organisations need due diligence support when they are preparing for investment, reviewing a potential acquisition, entering a sale process, expanding internationally, or assessing the financial position of a group company.

Acumon works with businesses that are:

  • approaching their first statutory audit
  • preparing for external investment
  • expanding into international markets
  • operating within corporate group structures

Early engagement with a firm that understands audit, reporting, and governance can help ensure that financial information is easier to review and that key risks are identified before a transaction moves too far forward.

Contact Information

Nationwide Investigations Group

Nationwide Investigations Group provides due diligence services in Manchester for private individuals, law firms, and corporate clients that need to check information before making decisions. Their work is built around investigation, corporate intelligence, asset tracing, and risk review, so their role is a little different from a standard accounting or advisory firm. They are often involved where there is a need to verify people, companies, assets, agreements, or financial trails before a contract, partnership, claim, or transaction moves forward.

Nationwide Investigations Group works with matters that may involve hidden liabilities, unclear ownership, background checks, financial records, legal agreements, and business-related risk. Their due diligence work can be useful where a client needs more than a surface-level review, especially when there are concerns around individuals, company entities, obligations, or assets. The firm also works across corporate, legal, and private investigation areas, which gives their due diligence services a broader investigative angle.

Key Highlights:

  • Due diligence support for individuals, law firms, and companies
  • Focus on corporate intelligence and background checks
  • Experience with asset and liability tracing
  • Work involving financial records and legal agreements
  • Support for business risk review before key decisions
  • Investigation-led approach to due diligence

Services:

  • Due diligence investigations
  • Corporate intelligence
  • Asset investigations
  • Liability tracing
  • Risk analysis and assessment
  • Fraud investigations
  • Background checks
  • Insurance investigations
  • Tracing missing persons
  • Enquiry agent services

Contact information:

  • Website: www.nig.co.uk
  • Phone: 020 7183 2991  
  • E-mail: info@nig.co.uk
  • Address: 85 Great Portland Street, London W1W 7LT
  • Twitter: x.com/NIGroup

FFT Accountants

FFT Accountants provides financial due diligence in Manchester, with a focus on smaller and mid-sized transactions where buyers, sellers, advisers, and investors need a clearer view of the numbers. Their work is mainly connected to business purchases, exits, funding decisions, and investment reviews. Instead of treating due diligence as a box-ticking exercise, they look at financial performance, earnings quality, working capital, balance sheet risks, and the assumptions behind forecasts.

FFT works with SME buyers and sellers, M&A solicitors, business brokers, corporate finance advisers, investors, acquirers, and owner-managers preparing for a sale or acquisition. Their reports are intended to support practical decision-making during a deal, including whether the reported figures are reliable, whether hidden liabilities may exist, and how financial issues could affect value or negotiations. The firm’s due diligence work is especially relevant where the client needs clear financial insight without an overly heavy process.

Key Highlights:

  • Financial due diligence for business transactions
  • Focus on SME buyers, sellers, and advisers
  • Review of reported figures, risks, and value drivers
  • Support for acquisitions, exits, and investment decisions
  • Work with solicitors, brokers, lenders, and finance advisers
  • Reports shaped around the size and needs of the deal

Services:

  • Financial due diligence
  • Quality of earnings review
  • Historical financial performance analysis
  • Working capital review
  • Balance sheet review
  • Forecast review
  • Hidden liability checks
  • Risk and opportunity assessment
  • Deal support for buyers and sellers

Contact information:

  • Website: fft.co.uk
  • Phone: 0161 834 2574
  • E-mail: mail@fft.co.uk
  • Address: Reedham House, 31 King Street West, Manchester, M3 2PJ
  • Facebook: www.facebook.com/people/Freedman-Frankl-Taylor/61559914852666
  • LinkedIn: www.linkedin.com/company/freedman-frankl-taylor

Saffery

Saffery provides transaction services that include vendor due diligence, buy-side due diligence, tax due diligence, vendor assistance, and related deal support. In Manchester, their work is connected to businesses preparing for sale, incoming investment, or wider transaction activity. Their vendor due diligence services are designed to give sellers an independent financial review before the buyer begins their own checks.

Saffery’s due diligence work helps business owners identify financial, operational, and tax-related issues that could affect buyer confidence, deal value, or the pace of a transaction. This can be useful before going to market, as it gives sellers time to address concerns, prepare better information, and reduce the chance of late surprises. Their experience on both sell-side and buy-side work also helps them understand what buyers are likely to question during the process.

Key Highlights:

  • Vendor due diligence for business owners preparing to sell
  • Financial analysis to support the sell-side process
  • Review of risks before buyer due diligence begins
  • Support for preserving deal value during transactions
  • Work across financial, operational, and tax-related matters
  • Manchester-based partner support for transaction services

Services:

  • Vendor due diligence
  • Financial due diligence
  • Tax due diligence
  • Vendor assistance
  • Buy-side due diligence
  • Bid support
  • Reporting accountant services
  • Transaction services
  • Deal risk review
  • Sell-side preparation support

Contact information:

  • Website: www.saffery.com
  • Phone: +44 (0)161 200 8383                                                                                                   
  • E-mail: info@saffery.com
  • Address: Trinity Court, 16 John Dalton Street, Manchester, M2 6HY
  • LinkedIn: www.linkedin.com/company/saffery
  • Instagram: www.instagram.com/saffery_uk

Grant Thornton

Grant Thornton provides transaction advisory services for organisations buying or selling a business, raising finance, refinancing, or preparing for a wider deal process. Their due diligence work sits within their deals practice and covers both buy-side and vendor-side support, with attention given to the financial detail behind a transaction. They work with clients through different stages of a deal, from early review and bid support to financial due diligence, vendor assistance, and sale and purchase agreement advice.

Grant Thornton’s work is shaped around the idea that each transaction has its own risks, pressures, and commercial questions. Their team supports businesses that need to understand value, test the numbers, assess risk, or prepare information before negotiations move further. For Manchester-based clients, the firm also lists local transaction advisory contact Neil Robinson, which gives the service a clear connection to the region while still being part of a wider UK deals team.

Key Highlights:

  • Due diligence support for buyers and sellers
  • Work across acquisitions, refinancing, capital raising, and business sales
  • Focus on transaction risk, value, and financial detail
  • Support from a wider UK transaction advisory team
  • Manchester contact listed for transaction advisory services
  • Covers both deal preparation and deal execution stages

Services:

  • Financial due diligence
  • Vendor due diligence
  • Vendor assist
  • Bid support
  • Financial modelling
  • Sale and purchase agreement advisory
  • Reporting accountant services
  • Transaction tax

Contact information:

  • Website: www.grantthornton.co.uk
  • Phone: +44 (0)161 953 6900                                                                                                       
  • Address: Landmark, St Peter’s Square, 1 Oxford Street, Manchester, M1 4PB
  • LinkedIn: www.linkedin.com/company/grant-thornton-uk
  • Instagram: www.instagram.com/gt_trainees

in4m

in4m provides technical due diligence services for property transactions and construction-related projects. Their work is focused on helping investors, occupiers, and developers understand the condition, quality, and legal or statutory issues linked to a property before a decision is made. This is a more property-specific type of due diligence, where the review is not just about documents, but also about the building itself and the possible liabilities that may follow after acquisition or occupation.

in4m’s acquisition survey work can be shaped around the client’s role in the transaction. An occupier may need clearer guidance on lease-related responsibilities, while an investor may be more focused on how construction quality, layout, specification, or condition could affect value. Their approach is practical and fairly direct: identify the issues, explain what may need further investigation, and help the client understand where problems could affect negotiations or future use of the property.

Key Highlights:

  • Technical due diligence for property transactions
  • Support for investors, occupiers, and developers
  • Review of construction quality, condition, and specification
  • Attention to lease, ownership, and statutory obligations
  • Advice shaped around the property type and commercial purpose
  • Useful for identifying potential liabilities before acquisition

Services:

  • Technical due diligence
  • Acquisition surveys
  • Property condition reviews
  • Construction quality review
  • Specification review
  • Statutory and legislative obligation checks
  • Lease obligation review
  • Advice on potential property liabilities
  • Support during property negotiations

Contact information:

  • Website: in4m.uk.com
  • Phone: 07771 878512
  • E-mail: angela@in4m.uk.com
  • Address: 82 King Street, Manchester M2 4WQ

Richardson Lissack

Richardson Lissack provides due diligence services for business owners, investors, and organisations involved in transactions, investments, mergers, or acquisitions. Their work is mainly legal-led, but it also covers financial and operational areas where these issues affect the risk profile of a deal. They support clients who need to verify information, understand liabilities, review documents, and make decisions with a clearer picture of what they are taking on.

Richardson Lissack can provide due diligence for a single transaction or investment, as well as draft due diligence policies for wider organisational use. Their process includes reviewing legal documents, contracts, agreements, disputes, financial records, tax documents, operational processes, business plans, and management-related information. With a Manchester office listed at Chancery Place, they are relevant for clients looking for due diligence support with a legal and corporate compliance angle in the city.

Key Highlights:

  • Due diligence support for transactions, investments, mergers, and acquisitions
  • Legal-led review with financial and operational coverage
  • Manchester office listed for client support
  • Work includes both one-off due diligence and policy drafting
  • Review of risks, liabilities, contracts, and business information
  • Reports intended to help clients understand transaction risks

Services:

  • Legal due diligence
  • Financial due diligence
  • Operational due diligence
  • Due diligence reports
  • Due diligence policy drafting
  • Contract and agreement review
  • Litigation and dispute review
  • Financial document review
  • Business plan and operational document review
  • Corporate compliance support

Contact information:

  • Website: www.richardsonlissack.co.uk
  • Phone: +44 (0)161 834 7284
  • E-mail: info@richardsonlissack.co.uk
  • Address: Chancery Place, 50 Brown Street, Manchester, M2 2JT
  • Twitter: x.com/richardsonliss
  • LinkedIn: www.linkedin.com/company/richardson-lissack-ltd

PKF Littlejohn

PKF Littlejohn provides due diligence and advisory services for businesses involved in mergers, acquisitions, fundraising, refinancing, and sales. Their work sits within transaction advisory, so the focus is on helping buyers, sellers, and leadership teams understand the risks, financial position, and practical issues that may affect a deal. They cover several areas of due diligence, including financial, tax, IT, ESG, regulatory finance, and actuarial review, which makes the service relevant for transactions where more than one part of the business needs to be checked.

PKF Littlejohn also supports vendors before a sale, including transaction readiness reviews and health checks. This can include preparing financial data, reviewing systems and controls, creating data books, looking at working capital, and supporting forecast models. Their work is not only about reviewing a deal at one point in time. It can also help businesses prepare before going to market and deal with practical matters that come up during or after completion.

Key Highlights:

  • Due diligence support for mergers, acquisitions, fundraising, and sales
  • Coverage across financial, tax, IT, ESG, regulatory finance, and actuarial areas
  • Vendor support for businesses preparing for a transaction
  • Review of systems, controls, reporting, and deal-related risks
  • Support during pre-deal, deal, and post-deal stages
  • Work with both experienced and newer leadership teams

Services:

  • Financial due diligence
  • Tax due diligence
  • IT and cyber due diligence
  • ESG due diligence
  • Regulatory finance due diligence
  • Actuarial due diligence
  • Vendor support
  • Transaction readiness reviews

Contact information:

  • Website: www.pkf-l.com
  • Phone: 0161 552 4220
  • Address: 11 York Street, Manchester, M2 2AW
  • Instagram: www.instagram.com/pkf.littlejohn
  • Twitter: x.com/PKF_Littlejohn
  • Linkedin: www.linkedin.com/company/littlejohn

HURST

HURST provides financial due diligence services for clients involved in acquisitions, investments, mergers, and other strategic business decisions. Their work is centred on checking the financial position of a target business, including its past performance, risks, liabilities, cash flow, working capital, profitability, and forecasts. This type of review helps buyers, investors, and other stakeholders understand whether the numbers support the deal being considered.

HURST works with private equity firms, corporate acquirers, and management buyout teams, as well as businesses that need financial review before committing to a transaction. Their due diligence process is shaped around the specific deal, rather than treated as a standard checklist. The firm also works alongside legal, tax, and advisory teams, which is useful when financial findings need to be understood in the wider context of a transaction.

Key Highlights:

  • Financial due diligence for acquisitions, mergers, and investments
  • Review of financial performance, risks, and liabilities
  • Support for private equity firms, corporate acquirers, and management buyout teams
  • Analysis of cash flow, working capital, profitability, and forecasts
  • Work across sectors such as manufacturing, technology, and retail
  • Collaboration with legal, tax, and advisory teams

Services:

  • Financial due diligence
  • Historical financial performance review
  • Risk and liability review
  • Cash flow analysis
  • Working capital review
  • Profitability review
  • Financial statement verification
  • Forecast and growth projection analysis

Contact information:

  • Website: www.hurst.co.uk
  • Phone: +44 (0) 161 832 6633
  • Address: 3 Stockport Exchange, Stockport, Cheshire, SK1 3GG
  • Facebook: www.facebook.com/HURSTAccountantsltd
  • Twitter: x.com/HurstTweets
  • LinkedIn: www.linkedin.com/company/hurst
  • Instagram: www.instagram.com/hurstaccountants

Harold Sharp

Harold Sharp provides due diligence and assurance services for businesses that need an independent review before making a purchase, investment, or major project decision. Their due diligence work is aimed at clients who are buying or investing in a business and need to check the assumptions behind the transaction. The focus is mainly financial, with their team reviewing and validating information so clients have a clearer view of what they are buying or investing in.

Harold Sharp also provides assurance reviews, which sit between a full audit and a basic accountants’ report. This can be useful for smaller companies that want independent review of their accounts without going through a full audit process. Their due diligence support covers both buy-side and vendor due diligence, so they can assist clients preparing to acquire a business as well as those preparing for sale or investment review.

Key Highlights:

  • Due diligence support for business purchases and investments
  • Focus on checking assumptions before a transaction
  • Financial review of pending acquisitions
  • Support for both buy-side and vendor due diligence
  • Assurance reviews for companies that need independent account review
  • Practical review of areas that may need further checking

Services:

  • Financial due diligence
  • Buy-side due diligence
  • Vendor due diligence
  • Acquisition review
  • Investment review
  • Financial information validation
  • Assurance reviews
  • Account review

Contact information:

  • Website: www.haroldsharp.co.uk
  • Phone: 0161 905 1616
  • E-mail: intouch@haroldsharp.co.uk
  • Address: 5 Brooklands Place, Brooklands Road, Sale, M33 3SD
  • Twitter: x.com/Harold_Sharp
  • LinkedIn: www.linkedin.com/company/harold-sharp
  • Instagram: www.instagram.com/haroldsharp.co.uk

COHIBL

COHIBL provides insurance due diligence services for clients involved in mergers, acquisitions, strategic transactions, and supplier or partner reviews. Their work focuses on checking a company’s insurance policies, claims history, cover levels, and risk exposure before a deal or business relationship moves forward. It is a more specific type of due diligence, but an important one, because insurance gaps can turn into real costs after completion.

COHIBL reviews existing insurance arrangements and looks at whether the current programme properly reflects the risks in the business. They also identify areas where cover may be weak, unclear, or not aligned with the transaction. Their role is not limited to reviewing documents. They look at the insurance position as if the programme were being built from the ground up, which helps clients understand what is suitable, what may need changing, and what should be addressed before or after acquisition.

Key Highlights:

  • Insurance due diligence for mergers and acquisitions
  • Review of insurance policies, claims history, and risk exposure
  • Support for transactions, supplier checks, and partner onboarding
  • Focus on cover gaps and potential insurance-related liabilities
  • Manchester office listed at York Street
  • Practical review before completion and post-acquisition

Services:

  • Insurance due diligence
  • Insurance programme review
  • Claims history review
  • Risk exposure assessment
  • Cover adequacy review
  • Insurance gap analysis
  • Recommendations for risk mitigation
  • M&A insurance advice

Contact information:

  • Website: cohibl.com
  • Phone: 0161 833 2100
  • E-mail: info@cohibl.com
  • Address: 5th Floor, 19 York Street, Manchester, M2 3BA
  • LinkedIn: www.linkedin.com/company/caunce-ohara-insurance-brokers-limited

Williamson & Croft

Williamson & Croft provides transaction services for clients buying, selling, investing in, or restructuring a business. Their due diligence work covers buy-side and sell-side situations, with a focus on checking financial, operational, tax, and strategic assumptions before decisions are made. They work with clients who need to understand whether a transaction is financially viable, where risks may sit, and how a deal could be structured.

Williamson & Croft also supports wider transaction planning, including business valuations, cash flow forecasting, structuring advice, tax due diligence, and vendor assistance. Their work can be useful for buyers who need a clearer view of a target company, as well as sellers preparing for questions from investors or acquirers. The firm works with businesses in Manchester, Liverpool, and beyond, across sectors such as property, manufacturing, construction, retail, technology, and professional services.

Key Highlights:

  • Buy-side and sell-side due diligence support
  • Review of financial, operational, tax, and strategic assumptions
  • Transaction services for acquisitions, disposals, and restructuring
  • Support for buyers, sellers, private equity, and lenders
  • Work across Manchester, Liverpool, and wider UK markets
  • Sector coverage includes property, manufacturing, retail, and technology

Services:

  • Buy-side due diligence
  • Sell-side due diligence
  • Tax due diligence
  • Vendor assistance
  • Structuring advice
  • Cash flow forecasting
  • Business valuations
  • Financial analysis
  • Management reporting
  • Transaction support

Contact information:

  • Website: www.williamsoncroft.co.uk
  • Phone: 0161 399 0121
  • E-mail: info@uhy-williamsoncroft.com
  • Address: York House, 20 York St, Manchester, M2 3BB
  • Twitter: x.com/williamsoncroft
  • LinkedIn: www.linkedin.com/company/williamsoncroft

Business Lawyers Direct

Business Lawyers Direct provides legal due diligence support for buyers and sellers involved in business purchases, share purchases, asset purchases, and commercial transactions. Their work focuses on reviewing the legal and commercial information behind a business so the buyer can understand what they are acquiring and what risks may come with it. This can include ownership, structure, contracts, employees, liabilities, compliance, financial information, and intellectual property.

Business Lawyers Direct also helps sellers respond to due diligence questions during a transaction. Their due diligence work is closely linked to the legal protections that may be needed in a sale and purchase agreement, such as warranties, indemnities, price changes, or other protections where risks are found. With a registered office in Whitefield, Manchester, they are relevant for businesses looking for due diligence support with a legal and commercial focus.

Key Highlights:

  • Legal and commercial due diligence for business purchases
  • Support for buyers and sellers during transactions
  • Review of ownership, contracts, liabilities, and compliance
  • Relevant for share purchases and asset purchases
  • Manchester registered office in Whitefield
  • Linked to warranties, indemnities, and deal protection measures

Services:

  • Business due diligence
  • Commercial due diligence
  • Legal due diligence
  • Share purchase review
  • Asset purchase review
  • Ownership and structure review
  • Statutory compliance review
  • Liability review
  • Supplier and customer contract review

Contact information:

  • Website: www.businesslawyersdirect.co.uk
  • Phone: 0333 777 8003
  • E-mail: law@businesslawyersdirect.co.uk
  • Address: 136 Park Lane, Whitefield, Manchester, M45 7PX

Conclusion

Choosing a due diligence services company in Manchester usually comes down to the type of review an organisation needs and the level of detail behind the decision. A buyer looking at financial risks will not always need the same support as a seller preparing for market, a property investor reviewing a building, or a company checking insurance cover before an acquisition. That is why the starting point is rarely just location or firm size. It is the nature of the transaction, the risks involved, and the questions that need clear answers.

Some organisations will prioritise financial due diligence, especially when they need to test revenue, profit, working capital, forecasts, or hidden liabilities. Others may need legal, technical, insurance, tax, operational, or investigative support. In many cases, the right choice depends on how complex the deal is, whether several parties are involved, and how much confidence the leadership team already has in the information available.

This guide is useful because it brings different types of due diligence providers into one place. It is not a ranking, and it should not be read as one. The point is to make comparison easier by showing how each company approaches due diligence, which areas they focus on, and what kind of client situation they are likely to suit. For organisations in Manchester, that can make the first stage of choosing a provider less vague and a bit more practical.