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Financial Due Diligence Services Companies in Aberdeen: Guide to Leading Providers

Choosing a financial due diligence provider in Aberdeen is more than a box-ticking step before a deal. It can shape how clearly buyers, investors, lenders, and business owners understand the financial position behind a transaction.

Aberdeen has a varied advisory market, with firms supporting owner-managed businesses, energy-related companies, property groups, professional services firms, and wider corporate clients. Some providers focus on transaction support and corporate finance, while others offer financial due diligence as part of broader audit, tax, accounting, or business advisory work.

This guide highlights a selection of financial due diligence services companies operating in Aberdeen. Rather than ranking providers, the aim is to give practical context – outlining who these firms are, the types of clients they usually support, and the areas where their due diligence and transaction advisory work may be most relevant.

Acumon

Acumon is a UK firm of chartered accountants and registered auditors providing financial due diligence services as part of its specialist advisory offering. The firm delivers these services across the UK, including Aberdeen, helping buyers and sellers identify and manage risks, validate financial information, negotiate better terms, and make informed pricing and investment decisions.

The firm works with organisations ranging from owner-managed businesses through to larger corporate groups considering acquisitions, disposals, or other transactions. Due diligence engagements draw on the firm’s audit, accounting, and tax expertise, delivering a structured, risk-focused approach.

Acumon provides both buy-side and vendor due diligence. This enables acquirers to assess target companies thoroughly and helps vendors prepare for sale by identifying and addressing issues early. The team operates with agility to meet tight transaction timelines while maintaining depth of analysis. As a growing mid-tier firm with a substantial UK-based team and real-world transaction experience, Acumon combines comprehensive capabilities with responsive service.

International and group structures are supported through the firm’s audit licences and cross-jurisdictional familiarity, aiding due diligence on entities across multiple locations where relevant.

Financial due diligence engagements are typically led by senior professionals with direct involvement. The work often integrates with broader advisory services, including business valuations, MBO/MBI support, and post-transaction planning.

Due Diligence Capabilities:

Acumon provides financial due diligence services across a range of transaction types and organisational structures. 

These include:

  • Buy-side and vendor due diligence for M&A transactions
  • Quality of earnings analysis and normalisation
  • Working capital reviews and cash flow analysis
  • Balance sheet and asset verification
  • Debt and financing structure analysis
  • Tax due diligence (supported by in-house Chartered Tax Advisors)
  • Corporate structure and operational reviews
  • Forecast and projection assessments
  • Risk identification across employment, debtors, creditors, and strategic issues

Due diligence engagements are typically led by senior professionals with direct involvement throughout the process, drawing on the firm’s audit, accounting, and tax expertise to deliver timely, practical insights for clients.

Regulatory Licences and Registrations:

Acumon holds several audit registrations that enable it to support organisations operating across multiple jurisdictions.

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 allow the firm to provide financial due diligence services to groups that include entities in both the UK and key international financial centres.

Core Services:

In addition to core financial due diligence, Acumon supports clients throughout the transaction lifecycle as part of its specialist advisory practice. 

These include:

  • Financial due diligence
  • Commercial due diligence
  • Tax due diligence
  • Vendor due diligence
  • Business valuations
  • M&A and transaction advisory (including MBO/MBI support)
  • Post-acquisition integration support

The firm’s approach combines financial analysis with practical insights gained from its own successful acquisitions and the team’s direct transaction experience (including private equity and major infrastructure deals). This helps clients go beyond the numbers to understand real-world risks and opportunities.

Many organisations engage Acumon’s due diligence team when:

  • Preparing for or evaluating an acquisition or disposal
  • Planning an MBO or MBI
  • Seeking to strengthen their negotiating position
  • Requiring independent validation of financial information and forecasts

Early engagement allows for effective scoping, efficient data gathering, and better preparation of financial reporting and supporting documentation for the transaction process.

Contact Information:

  • Website: acumon.com
  • E-mail: mail@acumon.com
  • Address: 1-2 Craven Road, Ealing, London, W5 2UA, UK
  • Phone: 44 (0) 20 8567 3451

Hall Morrice 

Hall Morrice is a chartered accountancy firm, and its corporate finance work covers several areas linked to business sales, acquisitions, funding, and wider transaction advice. Hall Morrice fits most naturally into acquisition support, where they help clients assess opportunities, review the financial side of a target business, and move through the deal process with a clearer view of risk.

Hall Morrice due diligence support appears to sit alongside broader corporate finance advice, so the work is not only about checking historic numbers. It can also connect with cash requirements, funding structure, business modelling, and whether the expected value from a transaction is likely to hold up after completion.

Key Highlights:

  • Corporate finance support for SMEs
  • Offices in Aberdeen and Fraserburgh
  • Acquisition support includes financial due diligence
  • Experience across several industrial sectors
  • Works with debt and equity funders

Services:

  • Financial due diligence
  • Acquisition support
  • Sales support
  • Private equity advisory
  • Fundraising support
  • Business modelling
  • Refinancing advice

Contact Information:

  • Website: www.hall-morrice.co.uk
  • Facebook: www.facebook.com/HallMorriceCA
  • Twitter: x.com/HallMorriceCA
  • LinkedIn: www.linkedin.com/company/hall-morrice
  • Address: 6 & 7 Queens Terrace, Aberdeen, AB10 1XL
  • Phone: +44 (0)1224 647394

Johnston Carmichael

Johnston Carmichael has a dedicated financial due diligence service within its corporate finance team. The work is built around helping businesses, investors, and acquirers review the financial position of a company before a deal or investment decision is made. Their due diligence process covers financial records, forecasts, tax matters, vendor due diligence, and the risk points that may affect how a transaction is viewed.

Financial due diligence can sit next to transaction tax, business advisory, audit, risk assurance, restructuring, VAT, payroll, and other specialist services. That wider setup can be useful when a deal raises questions beyond the headline financial performance, such as tax exposure, future trading assumptions, or internal controls.

Key Highlights:

  • Dedicated financial due diligence service
  • Part of the corporate finance practice
  • Reviews financial performance before acquisitions or investment
  • Covers forecasts, tax, and vendor due diligence
  • Produces detailed reports focused on risk factors

Services:

  • Financial due diligence
  • Buy-side due diligence
  • Vendor due diligence
  • Forecast reviews
  • Financial records analysis
  • Tax due diligence

Contact Information:

  • Website: johnstoncarmichael.com
  • Facebook: www.facebook.com/JohnstonCarmichael
  • Twitter: x.com/JC_Accountants
  • LinkedIn: www.linkedin.com/company/johnston-carmichael-chartered-accountants-and-business-advisers
  • Instagram: www.instagram.com/johnston_carmichael
  • Address: David Wilson Audit Partner Bishop’s, Court 29 Albyn Place, Aberdeen, AB10 1YL
  • Phone: 01224 212222

Quantify Advisors Group

Quantify Advisors Group is a corporate finance and transaction services firm working with business owners, corporate clients, and private equity houses. Financial due diligence is one of the clearer parts of their service mix, sitting under transaction services alongside buy-side due diligence, sell-side support, vendor due diligence, and red flag reviews.

Quantify Advisors Group also brings financial modelling and vendor assistance into the same advisory frame. That means their work can support both sides of a transaction – buyers looking for a grounded view of a target business, and sellers preparing financial information before a sale process. Their services also cover transaction models, short-term cash flow modelling, working capital work, and diligence preparation support, which gives their due diligence work a practical link to deal planning and negotiation.

Key Highlights:

  • Focuses on corporate finance and transaction services
  • Works with business owners, corporates, and private equity firms
  • Covers both buy-side and vendor due diligence

Services:

  • Buy-side due diligence
  • Financial due diligence
  • Vendor due diligence
  • Sell-side support
  • Red flag reviews

Contact Information:

  • Website: quantify-advisors.co.uk
  • E-mail: info@quantify-advisors.co.uk 
  • LinkedIn: www.linkedin.com/company/quantifyadvisors
  • Address: H1 Hill of Rubislaw, Anderson Drive, Aberdeen, AB15 6BL
  • Phone: (01224) 007066

AAB

AAB handles financial due diligence through its wider corporate finance and transaction support work. The firm works with owner-managed companies, family businesses, UK entities, and international organisations, so its due diligence support is usually connected to bigger business decisions such as acquisitions, sales, fundraising, restructuring, or cross-border growth.

AAB’s corporate finance team brings financial modelling, tax awareness, valuation work, and transaction support into one joined-up service. They can help businesses look at the financial details behind a deal, check the assumptions behind the numbers, and understand where tax, funding, or timing issues may affect the next step.

Key Highlights:

  • Works with owner-managed and family businesses
  • Due diligence sits within wider transaction support
  • Covers business valuations and financial modelling
  • Provides advice across M&A, fundraising, restructuring, and litigation support

Services:

  • Transaction support
  • M&A advisory
  • Financial due diligence
  • Business valuations
  • Financial modelling
  • Fundraising support

Contact Information:

  • Website: aab.uk
  • E-mail: gdpr@aab.uk
  • Facebook: www.facebook.com/AABLLP
  • Twitter: x.com/AABGroup_
  • LinkedIn: www.linkedin.com/company/aab-accountants
  • Instagram: www.instagram.com/_aabgroup
  • Address: Kingshill View Prime Four Business, Park Kingswells, Aberdeen, AB15 8PU
  • Phone: +44 (0) 1224 625111

Henderson Loggie

Henderson Loggie approaches financial due diligence with a clear focus on lender requirements and transaction readiness. Their work is especially relevant where borrowing is needed to support a sale, acquisition, or change in ownership, since lenders often want an independent view of the business before making a decision.

The firm looks beyond headline figures such as EBITDA, working capital, and cash flow. Henderson Loggie also pays attention to areas that can affect lender confidence, including customer concentration, contract stability, management strength, reporting quality, accounting systems, covenant awareness, and cash discipline. This makes their due diligence support more detailed than a basic financial review, particularly for businesses preparing for lender-instructed checks.

Key Highlights:

  • Focuses on lender-instructed financial due diligence
  • Supports business owners preparing for transactions
  • Covers customer concentration, contracts, and management readiness
  • Looks at reporting quality, systems, forecasting, and covenant awareness

Services:

  • Financial due diligence
  • Lender-instructed due diligence support
  • Business plan review
  • Customer concentration analysis
  • Management and finance function review

Contact Information:

  • Website: hlca.co.uk
  • E-mail: info@hlca.co.uk
  • Facebook: www.facebook.com/HendersonLoggie
  • LinkedIn: www.linkedin.com/company/hendersonloggie
  • Instagram: www.instagram.com/hendersonloggie
  • Address: 1 Marischal Square, Broad Street, Aberdeen, AB10 1BL
  • Phone: 01382 200055

KPMG

KPMG provides financial due diligence as part of its deal advisory work, supporting both buy-side and vendor-side transactions. The firm’s approach is built around reviewing the target company’s financial data so buyers, sellers, investors, and lenders can understand the financial position before making deal decisions.

KPMG’s due diligence work covers assets, liabilities, financial performance, tax matters, and wider deal risks. They also connect due diligence with deal planning, execution, and post-deal integration, which can be important when a transaction depends on more than historic financial results.

Key Highlights:

  • Provides buy-side and vendor-side due diligence
  • Due diligence sits within deal advisory services
  • Reviews assets, liabilities, financial position, and results
  • Covers both financial and tax due diligence

Services:

  • Buy-side due diligence
  • Vendor due diligence
  • Financial due diligence
  • Vendor assistance
  • Tax due diligence
  • Commercial due diligence

Contact Information:

  • Website: kpmg.com
  • Twitter: x.com/kpmguk
  • LinkedIn: www.linkedin.com/company/kpmg-uk
  • Address: 1 Marischal Square, Broad Street, AB10 1DD 
  • Phone: +44 (0)1224 591 000

PwC

PwC covers financial due diligence as part of its deals work, with support for both buyers and sellers during sale or purchase transactions. They also work with vendor due diligence, vendor assistance, and SPA-related support. 

Their financial due diligence work looks at the condition of a business, including how it makes money, what drives its results, and where risks or opportunities may sit before a transaction moves forward. PwC can help buyers review revenue, costs, cash flows, financial assumptions, and deal risks, while sellers can use their support to prepare information before going to market and identify issues that may affect negotiations.

Key Highlights:

  • Covers both buy-side and vendor-side financial due diligence
  • Reviews historical data and financial assumptions
  • Looks at revenue structure, costs, and cash flows
  • Provides vendor assistance and fact-book preparation

Services:

  • Financial due diligence
  • Buy-side due diligence
  • Vendor due diligence
  • Vendor assistance
  • Fact-book preparation
  • SPA advisory

Contact Information:

  • Website: www.pwc.com
  • Facebook: www.facebook.com/PwCUK
  • LinkedIn: www.linkedin.com/company/pwc-uk
  • Instagram: www.instagram.com/pwc_uk
  • Address: The Capitol, 431 Union Street, Aberdeen, AB11 6DA
  • Phone: +44 (0)1224 210100

Deloitte

Deloitte’s financial due diligence service is built around transaction review for investors, acquirers, and vendors. The team focuses on the financial risks, trends, strengths, weaknesses, and value points that can affect an M&A decision. Their work is relevant for both domestic and cross-border deals, especially where different parties need a clearer view of the numbers before moving ahead.

Their due diligence support can include reviewing the financial profile of companies involved in a transaction, checking what is driving performance, and helping clients understand where risks may affect deal value or structure. They also draw on local teams across member firms when transactions involve more than one market.

Key Highlights:

  • Supports investors, acquirers, and vendors
  • Works across domestic and international transactions
  • Reviews financial risks, trends, and value areas
  • Serves privately held companies, listed corporations, and private equity funds

Services:

  • Buy-side transaction review
  • Vendor-side transaction review
  • Financial due diligence
  • M&A financial analysis
  • Financial risk assessment

Contact Information:

  • Website: www.deloitte.com
  • Facebook: www.facebook.com/deloittedanmark
  • Twitter: x.com/DeloitteDanmark
  • LinkedIn: www.linkedin.com/company/deloitte
  • Address: 8th Floor, The Silver Fin Building, 455 Union Street,  Aberdeen, AB11 6DB United Kingdom
  • Phone: +44 (0)1224 625888

Grant Thornton

Grant Thornton focuses its financial due diligence work on acquisition due diligence and transaction advisory. The firm looks at the areas that usually shape an investment decision, including historical trends, business KPIs, underlying earnings, tax risks, working capital, and net cash or debt. Grant Thornton’s work is designed to help buyers understand what is really sitting behind the financial picture before they move further into a transaction.

A clear part of Grant Thornton’s approach is the focus on underlying profitability. They review one-off or unusual items, trading dynamics, and debt-like items that may affect deal value or negotiations. The work also includes regular communication during the process, so important findings are raised early rather than only appearing at the end of the report.

Key Highlights:

  • Focuses on acquisition financial due diligence
  • Reviews historical trends, KPIs, and underlying earnings
  • Looks at tax risks, working capital, and net cash or debt
  • Identifies one-off and exceptional items

Services:

  • Acquisition due diligence
  • Transaction advisory
  • Underlying earnings review
  • KPI and trading analysis
  • Financial due diligence

Contact Information:

  • Website: www.grantthornton.co.uk
  • LinkedIn: www.linkedin.com/company/grant-thornton-uk
  • Instagram: www.instagram.com/gt_trainees
  • Address: Neo House Riverside Drive, Aberdeen, AB11 7LH 
  • Phone: +44 (0)1224 925 986

RSM UK

RSM UK offers financial due diligence services to a diverse range of clients, including companies, investors, banks, private equity firms, and those involved in buying or selling businesses. Their work examines both the potential risks and the opportunities inherent in a transaction. To aid in making deal decisions and during negotiations, they conduct thorough analysis covering financial, tax, and wider business aspects. Additionally, RSM UK provides vendor assist and vendor due diligence services, which are designed to help sellers identify potential issues before a prospective buyer raises them.

The due diligence services from RSM UK go beyond merely an initial financial review. They also provide counsel on sale and purchase agreements, advise on deal mechanisms, conduct working capital due diligence, prepare completion accounts, handle locked box structures, and offer post-deal support.

Key Highlights:

  • Covers financial, tax, and wider transaction analysis
  • Provides vendor assist and vendor due diligence
  • Includes working capital and completion accounts support
  • Handles deal mechanisms such as locked box arrangements

Services:

  • Financial due diligence
  • Vendor due diligence
  • Vendor assist
  • Tax due diligence support
  • Sale and purchase agreement advice
  • Working capital due diligence

Contact Information:

  • Website: www.rsmuk.com
  • LinkedIn: www.linkedin.com/company/rsm-uk
  • Instagram: www.instagram.com/rsm.uk
  • Address: 4th Floor, The Capitol 431 Union Street, Aberdeen, AB11 6DA 
  • Phone: +44 (0)1224 321133 

Conclusion

Choosing a financial due diligence provider usually starts with the type of transaction on the table. A buyer may need a close review of earnings, working capital, debt-like items, cash flow, and forecast assumptions. A seller may need vendor due diligence or vendor assistance before going to market. Lenders and investors may look for a different level of detail, especially where borrowing, covenant risk, or customer concentration is part of the decision. This guide is not intended to rank financial due diligence services companies in Aberdeen. Its purpose is to give a clearer starting point for comparing providers, understanding their areas of focus, and deciding which firms may be worth a closer look for a specific transaction.