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Best IT Audit Services Companies in Manchester: Who to Consider

Manchester has a strong mix of tech startups, established manufacturers, financial firms, and fast growing digital agencies. With that mix comes complexity. Systems evolve, data spreads across platforms, and compliance requirements rarely stand still. That is usually when an IT audit becomes more than a box ticking exercise. In this article, we are putting together […]

Manchester has a strong mix of tech startups, established manufacturers, financial firms, and fast growing digital agencies. With that mix comes complexity. Systems evolve, data spreads across platforms, and compliance requirements rarely stand still. That is usually when an IT audit becomes more than a box ticking exercise.

In this article, we are putting together a practical list of IT audit services companies in Manchester. The goal is simple. To look at who is out there, what they actually do, and how they approach technology risk, governance, and compliance. If you are responsible for IT, finance, or overall risk in a Manchester based organisation, this list should give you a grounded starting point.

1. Acumon

At Acumon we provide audit, risk and technology assurance services as part of a wider accounting and advisory practice. We are a registered audit firm and our work includes external audit, internal audit, governance support and IT risk reviews. Through our Risk and Tech Assurance team, we cover areas such as IT risk, cybersecurity, controls testing and compliance frameworks. Alongside this, we also handle tax, accounts, payroll and advisory work, which means we often see how financial reporting, systems and internal controls connect in real life, not just on paper.

Although our main office is in London, we work with businesses across the UK, including companies based in Manchester. We support finance directors, CFOs and business owners who need independent assurance over their systems, processes and technology risks. In Manchester’s mix of growing tech firms, manufacturers and service businesses, we are typically involved where organisations need structured IT audit work that aligns with statutory audit, governance and wider risk management requirements.

Key Highlights:

  • Registered UK audit firm
  • UK based team of accountants and risk professionals
  • Risk and Tech Assurance services alongside statutory audit
  • Experience working with limited companies, charities and subsidiaries
  • Internal audit and governance support

Services:

  • External audit
  • Internal audit
  • IT risk and cybersecurity reviews
  • Governance and compliance support
  • Risk management advisory
  • Accounts and tax services

Contact information:

2. Grant Thornton 

Grant Thornton UK LLP operates a Manchester office that provides audit, tax and advisory services to privately held businesses, public companies and not for profit organisations. Their audit and assurance work forms a central part of what they do, supported by teams covering cyber security, forensics, restructuring and transaction advisory. In practice, this means their IT audit related work often sits within broader assurance, risk and control engagements rather than as a standalone technical exercise.

From their Manchester location at St Peter’s Square, they work with organisations across a wide range of sectors. Being part of an international network allows them to draw on specialist teams where required, including in areas such as cyber risk, investigations and regulatory compliance. For Manchester based businesses dealing with growth, acquisitions or increased scrutiny from regulators, their audit approach typically combines financial audit, systems review and risk assessment in one structured engagement.

Key Highlights:

  • Manchester office serving regional and national clients
  • Part of an international network of member firms
  • Audit and assurance services for public and private entities
  • Cyber security and forensic capabilities
  • Experience across multiple sectors

Services:

  • Audit and assurance
  • Cyber security and IT related risk work
  • Forensic and investigation services
  • Transaction advisory
  • Restructuring
  • Tax services

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

3. S&W 

S&W operates from its Manchester office in the Northern Assurance Building, providing audit, accounting and advisory services to businesses across the Greater Manchester region. Their audit and assurance work includes external audit and financial reporting support, often combined with systems, processes and control reviews. They also offer risk advisory services that bring together cybersecurity, regulatory compliance and business controls, which naturally links into IT audit and technology risk oversight.

Working with mid market corporates, SMEs, owner managed businesses and not for profit organisations, S&W supports companies at different stages of growth. In Manchester, where businesses range from family owned manufacturers to digital and creative firms, their work often focuses on strengthening governance, reviewing internal controls and assessing risk exposure. Their digital and risk advisory teams add a technology layer to traditional audit, which is relevant for organisations that rely heavily on data, systems and online operations.

Key Highlights:

  • Manchester office serving the Greater Manchester region
  • Audit and assurance combined with advisory services
  • Risk advisory including cybersecurity and compliance
  • Experience across manufacturing, digital, healthcare and professional services
  • Support for SMEs and larger corporate groups

Services:

  • External audit
  • Accounting advisory
  • Risk advisory and cybersecurity reviews
  • Business outsourcing
  • Corporate finance and transaction services
  • Tax and VAT services

Contact information:

  • Website: www.swgroup.com
  • Phone: +44 161 832 6413                                                                                            
  • Address: Northern Assurance Building, Albert Square, 9/12 Princess Street, Manchester M2 4DN
  • Twitter: x.com/S_W_Group
  • LinkedIn: www.linkedin.com/company/swgroupuk

4. KPMG 

KPMG operates from its Manchester office at One St Peter’s Square, providing audit, tax and advisory services to organisations across the North West. Their work covers external audit and assurance, alongside advisory services that include digital transformation and cyber security. In practice, this means their IT audit related activity often sits within broader audit and risk engagements, especially where businesses need assurance over systems, controls and data security.

KPMG Manchester works with a wide range of organisations, from start ups to listed companies. Being part of a global network allows them to involve specialists in areas such as cyber risk and technology enabled transformation when required. For businesses in Manchester that rely heavily on digital systems, their audit teams typically review financial reporting controls alongside technology risks, helping management understand how IT environments connect to governance and compliance.

Key Highlights:

  • Manchester office located in the central business district
  • Audit, tax and advisory services under one structure
  • Cyber security and digital transformation capabilities
  • Part of a global network of member firms
  • Works with private, public and listed entities

Services:

  • External audit and assurance
  • IT risk and cyber security advisory
  • Digital transformation support
  • Corporate finance advisory
  • Tax services

Contact information:

  • Website: kpmg.com
  • Phone: +44 (0)161 246 4000                  
  • Address: 1, St Peter’s Square, Manchester M2 3AE, United Kingdom
  • Twitter: x.com/kpmguk
  • Facebook: www.facebook.com/KPMG
  • LinkedIn: www.linkedin.com/company/kpmg-uk

5. RSM UK 

RSM UK has a presence in Manchester as part of its wider UK network, delivering audit, tax and consulting services. Their audit work includes statutory audit and assurance engagements, often supported by teams focused on risk and governance. In the context of IT audit, their approach tends to combine financial audit procedures with reviews of systems, internal controls and technology related risks.

Manchester based organisations working with RSM range from mid sized businesses to larger groups. Through their risk and governance and forensic services teams, they also address areas such as fraud risk, investigations and control weaknesses. For companies operating in data driven sectors, their audit and consulting work often looks at how processes, IT systems and compliance requirements interact in everyday operations.

Key Highlights:

  • Audit, tax and consulting services
  • Risk and governance capabilities
  • Forensic and investigation services
  • Part of an international network
  • Serves a broad range of sectors

Services:

  • Statutory audit
  • IT and control reviews within audit engagements
  • Risk and governance advisory
  • Forensic and investigation services
  • Tax and consulting services

Contact information:

  • Website: www.rsm.global
  • Phone: +44 (0)161 830 4000                                                    
  • Address: Landmark, St Peter’s Square, 1 Oxford Street, Manchester, M1 4PB
  • Facebook: www.facebook.com/GlobalRSM
  • Twitter: x.com/RSM_Global
  • LinkedIn: www.linkedin.com/company/rsm-uk
  • Instagram: www.instagram.com/rsm.uk

6. BDO 

BDO operates from its Manchester office in the Eden Building, serving businesses across Greater Manchester and the wider North West. Their work includes Audit and Assurance, Digital Risk Advisory Services, Tax, Corporate Finance and Business Services. Within IT audit contexts, their digital risk advisory and audit teams often review systems, controls and technology risks as part of wider assurance engagements.

The Manchester office supports a broad client base, including mid market companies, listed entities, not for profit organisations and private businesses. Through their audit and digital risk teams, they assess governance structures, financial reporting controls and technology environments. For organisations in sectors such as manufacturing, retail and technology, this combination of audit and digital risk work can be relevant where regulatory compliance and system reliability are closely linked.

Key Highlights:

  • Manchester office serving the North West region
  • Audit and Assurance combined with Digital Risk Advisory
  • Works with mid market and listed entities
  • Sector experience across manufacturing, retail and technology
  • Part of an international network

Services:

  • External audit
  • Digital risk advisory
  • IT and control reviews
  • Corporate finance
  • Tax services
  • Business services and outsourcing

Contact information:

  • Website: www.bdo.co.uk
  • Phone: 0161 817 7500
  • Address: Eden Building, Irwell Street, Salford, Manchester, M3 5EN, United Kingdom
  • LinkedIn: www.linkedin.com/company/bdo-llp
  • Instagram: www.instagram.com/bdo_uk

7. Sedulo 

Sedulo provides audit and assurance services from its Manchester office, working with private, public and not for profit organisations. Their audit team handles statutory audits as well as a range of other assurance assignments, including funder audits, grant audits and client asset audits for regulated firms. Alongside external audit work, they also offer internal audit and compliance support, which can connect closely with IT controls and governance where systems and reporting processes need to be reviewed.

Based in Manchester, they support businesses across the North West and also work with international groups where UK entities form part of a wider structure. In those situations, they coordinate with overseas group auditors and review the work of component auditors. For companies in Manchester that rely on solid financial systems and internal controls, their audit approach typically includes feedback on processes and areas where improvements may be needed.

Key Highlights:

  • Manchester office with dedicated audit leadership
  • Statutory and external audit services
  • Internal audit and compliance support
  • Experience with international group audits
  • Works with private, public and not for profit entities

Services:

  • Statutory audit
  • Internal audit
  • Grant and funder audits
  • Client asset audits
  • Due diligence assignments
  • Charity independent examinations

Contact information:

  • Website: sedulo.co.uk
  • Phone: 0333 222 4445                                            
  • Email: hello@sedulo.co.uk
  • Address: The Regency Club, 62-66 Deansgate, Manchester, M3 2EN
  • Facebook: www.facebook.com/SeduloGroup
  • Twitter: x.com/sedulo_group
  • LinkedIn: www.linkedin.com/company/sedulo
  • Instagram: www.instagram.com/sedulogroup

8. Forvis Mazars 

Forvis Mazars operates from its Manchester office in St Peter’s Square, providing audit, tax and advisory services to businesses and individuals across the region. Their audit and assurance work forms a core part of their offering, supported by advisory services and accounting and outsourcing. In practice, their audit engagements often involve reviewing financial reporting processes, governance structures and internal controls, which can include elements of IT and systems risk where relevant.

From Manchester, they work with organisations across a range of sectors in the North West. As part of an international network, they can involve specialists when clients operate across borders or face more complex reporting requirements. For Manchester based businesses, their audit teams typically combine statutory audit work with broader advisory input, particularly where compliance, risk management and digital systems intersect.

Key Highlights:

  • Manchester office located in St Peter’s Square
  • Audit and assurance services
  • Tax compliance and advisory support
  • Corporate finance and deal advisory
  • Part of an international network

Services:

  • External audit and assurance
  • Accounting and outsourcing
  • Corporate finance advisory
  • Tax compliance and advisory
  • Financial planning

Contact information:

  • Website: www.forvismazars.com
  • Phone: +44(0) 161 238 9200
  • Address: One St Peters Square, Manchester, M2 3DE, United Kingdom
  • Twitter: x.com/ForvisMazarsUK
  • LinkedIn: www.linkedin.com/company/forvis-mazars-in-the-uk
  • Instagram: www.instagram.com/forvismazarsuk

Conclusion

Manchester has no shortage of firms offering audit and assurance services, and when you look closely, many of them now touch IT risk in one way or another. For some, it sits within a wider statutory audit. For others, it appears through digital risk advisory, cyber reviews or governance work. The shape of the service often depends on the size of the business and the level of complexity behind the scenes.

What stands out across the board is that IT audit in Manchester is rarely a standalone technical exercise. It is usually tied to financial reporting, compliance, investor requirements or group oversight. In a city where businesses range from fast growing tech companies to long established manufacturers, that overlap makes sense. Systems run the numbers. Controls protect the data. And audit brings structure to it all.

Choosing the right firm really comes down to fit. Some organisations need deep technical cyber input. Others need reassurance that their reporting systems and internal controls are solid. Either way, Manchester offers a mix of firms with different strengths, and that variety is probably a good thing. It means companies can look beyond branding and focus on who actually understands their systems, their risks and the way they operate day to day.