a.c.t. audit
A.C.T. Audit is a partner-led boutique firm in London and Dublin delivering audit, accounting, tax compliance, tax technical advisory, transaction support, and outsourced finance services to UK and Ireland companies, international groups, fintechs, and listed entities.
- Company typePrivate
- Founded-
- HeadquartersLondon, United Kingdom
- Headcount—
- GTM typeB2B
- OfferingServices
What a.c.t. audit does
A.C.T. Audit Limited is a private, partner-led boutique professional services firm headquartered in Mayfair, London, with a secondary office in Dublin. The firm delivers audit, accounting, tax compliance, tax technical advisory, transaction support, and outsourced business process services to companies, groups, international businesses, fintech firms, regulated financial entities, listed companies, founders, and finance teams operating in the UK and Ireland. Service lines are organised into six pillars: Audit & Assurance, Accounting & Reporting, Tax Compliance, Tax Technical Advisory, Transaction Support, and Business Process. Engagement scope spans statutory and group audit, UK GAAP and IFRS reporting, Corporation Tax and VAT compliance, R&D tax relief, Patent Box, Pillar 2 / Global Minimum Tax, transfer pricing, financial due diligence, and outsourced bookkeeping, payroll, and company secretarial work.
The firm employs 100+ professionals with multilingual capabilities, led by Managing Partner Pierpaolo (15 years of audit experience, including 5 years at a Big 4 firm). It holds ACCA membership (No. 3984782) and positions itself as a UK and Ireland technical specialist rather than a generalist. The technology stack is non-proprietary; there is no platform, API, SDK, or AI tooling described, and service delivery relies on the partner-led professional model.
Revenue is generated through professional services fees billed per engagement on a scope-defined basis; no standard rate cards or publicly disclosed pricing exist. The go-to-market is enterprise field sales via direct partner-led engagement from London and Dublin, supported by a top-of-funnel content presence on LinkedIn, a Blog & News section, and an email newsletter. The firm has no disclosed institutional investors, parent company, or M&A activity, indicating founder/partner-owned independence.
a.c.t. audit firmographics
Firmographics- Name
- a.c.t. audit
- Legal name
- A.C.T. Audit Limited
- Website
- https://actaudit.london
- Company type
- Private
- Operating status
- Operating
- Short description
- A.C.T. Audit is a partner-led boutique firm in London and Dublin delivering audit, accounting, tax compliance, tax technical advisory, transaction support, and outsourced finance services to UK and Ireland companies, international groups, fintechs, and listed entities.
- Ownership category
- akta.pro rank
a.c.t. audit industry classification
Industry- Product category
- Audit & Assurance Services
- NAICS
- Accounting, Tax Preparation, Bookkeeping, and Payroll Services (54121), Offices of Certified Public Accountants (541211)
- SIC
- Services-Engineering, Accounting, Research, Management (8700)
- akta.pro primary industry
- Audit & Assurance Services (BPAHABAA)
- akta.pro secondary industry
- Financial Reporting & Technical Accounting Advisory (GAAP/IFRS) (BPAHABAF)
Keywords
Where a.c.t. audit is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices2 records
Markets served
a.c.t. audit business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Infrastructure, Others
Revenue model
- Professional Services Fees: Revenue is generated through fees for professional services including statutory audit, group audit, accounting and reporting, tax compliance, tax technical advisory, transaction support, and outsourced finance/business process services. Engagement-based billing with scope defined per client.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels4 records
a.c.t. audit product offering
Product offeringCore offering
A.C.T. Audit is a boutique, partner-led professional services firm delivering audit, accounting, tax compliance, tax technical advisory, transaction support, and outsourced business process services to companies, groups, international businesses, fintechs, listed entities, founders, and finance teams operating in the UK and Ireland. The firm is structured around six core service areas — Audit & Assurance, Accounting & Reporting, Tax Compliance, Tax Technical Advisory, Transaction Support, and Business Process — covering statutory audit, group and component audit, IFRS and UK GAAP reporting, Corporation Tax, VAT, R&D tax relief, Patent Box, Pillar 2, transfer pricing, financial due diligence, bookkeeping, payroll, and company secretarial work.
Product overview
A.C.T. Audit is a boutique, partner-led audit, accounting, tax, and advisory firm offering professional services in the UK and Ireland. The firm operates as a single integrated service offering organized around six core service areas: Audit & Assurance, Accounting & Reporting, Tax Compliance, Tax Technical Advisory, Transaction Support, and Business Process services. These services are designed for companies, groups, founders, finance teams, international businesses and professional advisers requiring audit, reporting, tax and compliance support. The firm is built on a partner-led model combining technical knowledge with practical delivery.
Differentiator
Problem solved
Functional benefit
Products and services
- Audit & Assurance
Companies that use a.c.t. audit
Customer profileNamed customers4 records
Segments4 records
Ideal customer profiles4 records
a.c.t. audit technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
a.c.t. audit partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Association of Chartered Certified Accountants (ACCA)coreA.C.T. Audit is a member of the Association of Chartered Certified Accountants (ACCA Member No. 3984782). ACCA membership indicates the firm and its professionals adhere to ACCA's ethical and professional standards. The firm displays the ACCA logo on its website footer.
Scale indicators3 records
Recent moves5 records
Expansion highlights4 records
a.c.t. audit competitors and assessment
Company assessmentDirect peers
- Moore Kingston Smith: UK mid-tier chartered accountancy firm offering audit, tax, advisory and outsourced finance services to mid-market companies, groups and not-for-profits. Comparable to A.C.T. Audit in scale, UK focus and partner-led mid-market positioning.
- MHA MacIntyre Hudson: Top-15 UK accountancy and advisory firm providing audit, tax, accounting and transaction support to SMEs, groups and international businesses. Closely comparable on audit-and-tax service mix, UK mid-market focus, and partner-led delivery.
- PKF Smith Cooper: Top-20 UK chartered accountancy firm with audit, tax, corporate finance and business advisory services. Comparable to A.C.T. Audit in mid-tier positioning, breadth of service lines, and focus on owner-managed and group clients.
- Crowe UK: Mid-tier UK audit, tax and advisory firm serving listed companies, financial services and international groups. Direct comparability with A.C.T. Audit's regulated-fintech, listed-company and international-group client segments.
- Azets: UK and Ireland-focused accounting, tax, audit and advisory firm (formerly part of the Baldwins/RSM network). Comparable to A.C.T. Audit in serving SMEs and groups across UK & Ireland with a full audit-tax-compliance stack.
- Kreston Reeves: UK Top-30 chartered accountancy firm providing audit, tax, accounting and advisory to mid-market, not-for-profit and international clients. Comparable boutique-to-mid-tier positioning with cross-border service capability.
- Haysmacintyre: London-based chartered accountants and tax advisers serving mid-market companies, groups and not-for-profits. Direct comparable on London-centric boutique positioning, mid-market audit, and partner-led delivery.
- Saffery Champness: Top-20 UK chartered accountancy firm with strong private client, owner-managed business and international group practices. Comparable on partner-led mid-market audit and tax advisory, and UK/Ireland cross-border work.
Broad incumbents
- BDO UK: Top-5 UK audit, tax and advisory firm serving mid-market, listed and international clients. Overlaps with A.C.T. Audit's regulated-entity, fintech and international-group audit work but operates at significantly greater scale.
- Grant Thornton UK: Top-5 UK audit and advisory firm with strong mid-market and listed-company audit practice. Competes for the same regulated-entity and international-group audit mandates A.C.T. Audit serves, but as part of a much broader global network.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat3 records
Key risks4 records
Key highlights7 records
Customer concentration
a.c.t. audit social profiles
Digital presencea.c.t. audit compliance and trust
Trust signalCompliance1 record
a.c.t. audit financial estimates
Financial estimateRevenue estimate
Valuation estimate
a.c.t. audit leadership team
Management profileNumber of profiles
Profiles5 records
a.c.t. audit funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
a.c.t. audit M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about a.c.t. audit
What does a.c.t. audit do?
A.C.T. Audit is a boutique, partner-led professional services firm delivering audit, accounting, tax compliance, tax technical advisory, transaction support, and outsourced business process services to companies, groups, international businesses, fintechs, listed entities, founders, and finance teams operating in the UK and Ireland. The firm is structured around six core service areas — Audit & Assurance, Accounting & Reporting, Tax Compliance, Tax Technical Advisory, Transaction Support, and Business Process — covering statutory audit, group and component audit, IFRS and UK GAAP reporting, Corporation Tax, VAT, R&D tax relief, Patent Box, Pillar 2, transfer pricing, financial due diligence, bookkeeping, payroll, and company secretarial work.
Is a.c.t. audit a public or private company?
a.c.t. audit is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was a.c.t. audit founded?
a.c.t. audit was founded in -1.
Where is a.c.t. audit based?
a.c.t. audit is headquartered in London, United Kingdom, in the Europe region.
How does a.c.t. audit make money?
One revenue line is on record: professional Services Fees.
Who are a.c.t. audit's main competitors?
Direct peers on record are Moore Kingston Smith, MHA MacIntyre Hudson, PKF Smith Cooper, Crowe UK, Azets, Kreston Reeves, Haysmacintyre and Saffery Champness. Broad incumbents are BDO UK and Grant Thornton UK.
Does a.c.t. audit have an API?
No public API is recorded for a.c.t. audit.
What industry is a.c.t. audit in?
a.c.t. audit's product category is Audit & Assurance Services. Its primary akta.pro industry code is BPAHABAA, Audit & Assurance Services, with a secondary code of BPAHABAF, Financial Reporting & Technical Accounting Advisory (GAAP/IFRS). Its NAICS code is 54121 and its SIC code is 8700.