What Anavrin does

Anavrin Limited is a chartered accountancy and tax advisory firm based in Maidenhead, Berkshire, United Kingdom. The firm serves small companies, contractors, freelancers, sole traders, and personal tax clients across the Berkshire and Buckinghamshire regions, operating a six-service portfolio: Bookkeeping, VAT and Payroll; Personal Tax Returns and Tax Planning; Limited Companies and Contractors support; Virtual Financial Director services; Outsourced Finance Function; and Interim senior finance support. These services can be used independently or in combination, enabling clients to fully outsource their bookkeeping, accounting, payroll, tax, and company secretarial requirements. The firm is registered as Anavrin Limited (Company No. 05249733) and is a member firm of the Institute of Chartered Accountants in England and Wales (ICAEW).

The firm does not develop proprietary technology, software products, applications, or APIs. Its core technical capability centres on expertise in QuickBooks and Xero cloud accounting platforms, which are used to deliver Outsourced Finance Function services. There is no evidence of AI/ML capability, machine learning models, or proprietary automation tooling beyond standard accounting platform usage. The technology stack is therefore limited to widely available third-party platforms rather than differentiated proprietary systems, and the firm's differentiation rests on professional expertise, personal service, and local presence rather than on technology.

Anavrin's business model is professional services billing on a monthly cadence with a transparent fee structure, though specific pricing is not publicly disclosed. The go-to-market is sales-led and direct-to-client, relying on local market presence in Maidenhead and surrounding areas and organic word-of-mouth referrals. The firm maintains a single headquarters location at Poplars, 113 Altwood Road, Maidenhead, and does not operate through intermediary or reseller channels. There is no evidence of institutional investment, external funding, partnerships, or parent company ownership. With 1-10 employees and no disclosed financial information, Anavrin operates as a small, locally focused, independently owned practice.

Name

Anavrin

Legal name

Anavrin Limited

Website

https://anavrin.co.uk

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

1–10 employees

Short description

Anavrin Limited is a Maidenhead, UK-based chartered accountancy and tax advisory firm serving small companies, contractors, freelancers, sole traders, and personal tax clients across Berkshire and Buckinghamshire through bookkeeping, tax, payroll, virtual FD, and outsourced finance services.

Ownership category

akta.pro rank

Headquarters

HQ city

Maidenhead

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Professional Accountancy Services: Provides chartered accountancy and tax advisory services to businesses and individuals, including bookkeeping, VAT, payroll, annual accounts, and corporation tax services.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Anavrin is a chartered accountancy and tax advisory firm providing bookkeeping, VAT, and payroll services, personal tax return preparation, limited company formation and compliance, virtual financial director/outsourced finance function services, and interim senior finance support to small businesses, contractors, freelancers, sole traders, and individuals. Services are delivered by qualified Chartered Accountants using QuickBooks and Xero platforms under a transparent monthly fee structure.

Product overview

Anavrin is a firm of Chartered Accountants & Tax Advisers offering a unified portfolio of accounting and financial services rather than a software product platform. The service portfolio consists of six integrated offerings: Bookkeeping, VAT & Payroll provides day-to-day financial administration; Personal Tax Returns & Tax Planning handles individual tax compliance and planning; Limited Companies & Contractors supports business formation and ongoing compliance; Virtual Financial Director delivers part-time executive-level financial leadership; Outsourced Finance Function provides complete back-office finance services via QuickBooks or Xero; and Interim Support offers senior-level temporary finance team augmentation. These services can be used independently or in combination, enabling clients to completely outsource their bookkeeping, accounting, payroll, tax, and company secretarial requirements.

Differentiator

Problem solved

Functional benefit

Products and services

• Bookkeeping, VAT & Payroll Day-to-day bookkeeping, VAT compliance and management, and payroll processing and administration service for small businesses, contractors, freelancers and sole traders.
• Personal Tax Returns & Tax Planning Tax preparation and filing service for individuals ensuring timely submission of self-assessment returns while identifying and claiming all available allowances and reliefs.
• Limited Companies & Contractors Comprehensive support for limited companies including formation, annual accounts, corporation tax returns, bookkeeping, VAT, dividend calculations, and personal self-assessment tax returns for directors.
• Virtual Financial Director Part-time CFO/Finance Director service providing business planning, growth strategy, profitability control and financial leadership, delivered by a qualified Chartered Accountant without the cost of a full-time executive hire.
• Outsourced Finance Function Full outsourced finance department service using QuickBooks or Xero platforms, covering bookkeeping, VAT, payroll, budgeting, management accounts, statutory accounts, and company secretarial functions on a customisable basis.
• Interim Support Senior-level interim finance team support supplying an experienced Finance Director on a flexible basis for larger or established businesses during transitional or challenging periods.

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature2 records

Recent moves3 records

Expansion highlights1 record

Broad incumbents

• Mazars UK: International audit and advisory firm with significant UK presence serving SMBs through large corporates. Overlaps with Anavrin on accounting and tax services but operates at vastly greater scale.
• BDO UK: Top-tier UK accountancy and advisory network offering compliance, tax, and outsourcing services. Comparable in service breadth and ICAEW-equivalent positioning but serves a much larger and more diverse client base than Anavrin.
• RSM UK: Large UK accounting and advisory network serving mid-market and larger SMB clients. Comparable service portfolio (audit, tax, outsourcing, advisory) but at significantly broader scale than Anavrin.

Direct peers

• Azets: UK chartered accountancy and business advisory firm providing bookkeeping, payroll, tax, and outsourced finance services to SMBs and contractors, with regional offices overlapping Anavrin's South East catchment.
• Carpenter Box: Regional UK chartered accountancy firm serving owner-managed businesses, contractors, and individuals across the South East with bookkeeping, tax, payroll, and virtual FD-style advisory services.
• The FD Centre: UK firm specializing in fractional, part-time, and virtual Finance Director services for SMEs that cannot afford a full-time CFO. Closest direct comparable to Anavrin's Virtual Financial Director offering.
• Moore Kingston Smith: UK chartered accountancy firm providing accounting, tax, advisory, and outsourced finance services to SMBs and mid-market clients. Highly comparable to Anavrin in service mix (compliance + advisory) and target segment.
• Kreston Reeves: Regional UK chartered accountancy firm offering accounting, tax, payroll, and advisory services to owner-managed businesses, contractors, and individuals — directly overlapping Anavrin's SMB and personal tax client base.
• Crowe UK: Mid-tier UK accounting and advisory firm serving SMBs and mid-market companies with audit, tax, and outsourced finance services. Comparable to Anavrin on service breadth and SMB focus, though at significantly larger scale.
• MHA MacIntyre Hudson: Top-20 UK chartered accountancy group offering compliance, tax, advisory, and outsourced finance services to SMEs, contractors, and owner-managed businesses — directly comparable in service portfolio.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights5 records

Customer concentration

• Xx.com/anavrinuk
• LinkedInlinkedin.com/company/anavrin

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Anavrin