Charterhouse

What Charterhouse does

Charterhouse (Accountants) Limited is a privately-held UK accounting and business advisory firm headquartered in Harrow, Middlesex, founded in 2014 as a limited company (Company No 09082390) and serving clients across Harrow, Middlesex, Buckinghamshire, and Surrey. The firm delivers a comprehensive suite of professional services spanning tax advisory, payroll and pensions, audit, management accounting, cloud accounting support, corporate finance, mergers and acquisitions advisory, business restructuring, IR35 compliance, EIS/SEIS advisory, non-executive director placements, and a Virtual Finance Department offering. Its primary client segments are small and medium enterprises (SMEs), corporates, start-ups, high net worth individuals, and property owners/landlords, with named client relationships spanning decades (e.g., a ~40-year relationship with Sopersport Limited).

The firm operates a professional services revenue model with bespoke, quote-based pricing tailored to client scope, combining recurring compliance and bookkeeping engagements with discrete consulting mandates. Service delivery is built on third-party cloud platforms — Xero and Sage for core accounting, Futrli for predictive business reporting, and Blink Payment for client collections — rather than proprietary technology. Charterhouse supplements direct advisory with a self-service digital resource layer including online tax calculators, a tax deadline calendar, a tax rates and allowances database, and a downloadable factsheets library.

Customer acquisition is sales-led and relies on referrals, displayed client testimonials, content marketing through newsletters and blog, and community engagement including a 2023 Charity of the Year partnership with St Luke's Hospice Harrow. The firm is GDPR-compliant with a designated Data Protection Coordinator and demonstrates ESG and diversity commitments through its Charterhouse Foundation and related programs. Charterhouse operates as an independent, founder/management-led practice with no disclosed parent company, institutional investment, acquisition activity, or external funding rounds.

Name

Charterhouse

Legal name

Charterhouse (Accountants) Limited

Website

https://charter-house.net

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

11–50 employees

Short description

Charterhouse (Accountants) Limited is a privately-held UK accounting and business advisory firm based in Harrow, serving SMEs, corporates, start-ups, and high net worth individuals across Middlesex, Buckinghamshire, and Surrey with tax, payroll, audit, and corporate finance services.

Ownership category

akta.pro rank

Headquarters

HQ city

Harrow

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Accounting and Tax Services: Professional accounting, taxation, and advisory services provided to businesses and individuals on an ongoing basis. Services include tax returns, management accounting, payroll processing, and financial statement preparation.
2. Consulting Services: Bespoke consulting engagements including business planning, company restructuring, mergers and acquisitions advisory, and tax planning strategies.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Charterhouse (Accountants) Limited is a Harrow-based UK accounting and tax advisory firm delivering accounting, taxation, payroll, audit, corporate finance, and advisory services to SMEs, corporates, startups, high net worth individuals, and property owners. It combines traditional chartered-accountant-style professional services with cloud accounting platforms (Xero, Sage) and offers both ongoing compliance work and bespoke consulting mandates such as M&A advisory, restructuring, and tax planning.

Product overview

Charterhouse is an accounting firm offering a comprehensive suite of professional services for SMEs, corporates, start-ups, and high net worth individuals. The firm operates as a single integrated practice rather than a platform-plus-modules architecture, providing core accounting and tax services alongside specialized advisory offerings. Services span tax advisory, payroll and pensions, audit, corporate finance, and estate planning, supported by digital resources including online calculators, tax calendars, and a factsheets library. The firm leverages cloud accounting platforms (Xero, Sage) to deliver modern accounting services and publishes regular news and insights on UK tax developments.

Differentiator

Problem solved

Functional benefit

Products and services

• Tax Advisory Services Professional tax advisory services covering tax planning, tax compliance, and tax advice for individuals, businesses, and property owners; includes personal tax, inheritance tax, property tax, and trust tax work.
• Payroll Service and Pensions Comprehensive payroll processing and pension administration for employers, including ongoing payroll runs, pension auto-enrolment support, and related compliance; positioned for SMEs and corporates that do not run in-house payroll.
• Management Accounting Management accounts, financial performance monitoring, and management information reporting to help business owners understand and improve their financial performance.
• Business Support and Cloud Accounting Cloud-based bookkeeping and ongoing business support delivered using modern accounting platforms (Xero and Sage), aimed at reducing administrative burden and supporting day-to-day finance function.
• Audit Services Independent audit and financial examination services for businesses requiring statutory audit or voluntary assurance work.
• Mergers and Acquisitions Advisory Strategic advisory for business sales, acquisitions, and mergers, including buy- and sell-side support, deal structuring, and related financial work.
• Corporate Finance Advisory

Named customers3 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

Scale indicators2 records

Recent moves4 records

Expansion highlights5 records

Broad incumbents

• Mazars UK: International audit, tax, and advisory firm with a UK practice serving SMEs, corporates, and private clients. Overlaps with Charterhouse's compliance and advisory services but operates at much greater scale.
• Crowe UK: UK member of Crowe Global, providing audit, tax, advisory, and risk consulting to mid-market and SME clients. Overlaps with Charterhouse's compliance and advisory offerings as part of a broader international portfolio.
• BDO UK: Top 5 UK accountancy firm offering audit, tax, corporate finance, and advisory services to SMEs, corporates, and HNW clients. Provides overlap with Charterhouse's service lines but at significantly greater scale and geographic reach.
• RSM UK: UK member of RSM Global, providing audit, tax, consulting, and corporate finance to middle-market companies. Comparable advisory breadth but with substantially larger headcount and multi-office presence.
• Azets UK: UK-focused accountancy and advisory group offering audit, tax, payroll, and business advisory to SMEs and HNW individuals. Comparable segment focus and service mix, with broader regional coverage than Charterhouse.

Direct peers

• MHA (MacIntyre Hudson): UK Top 10 accountancy network providing accounting, audit, tax, corporate finance, and wealth advisory. Comparable full-service advisory model targeting SMEs, corporates, and HNW individuals across regional UK markets.
• Saffery Champness: UK Top 20 accountancy firm with strong private client and SME practices, including tax planning, audit, corporate finance, and wealth structuring. Highly comparable in HNW and SME segment focus.
• Bishop Fleming: UK Top 30 accountancy firm with strong regional presence across the South West and Wales, offering tax, audit, corporate finance, and wealth advisory to SMEs and HNW clients. Highly comparable in service mix and segment focus to Charterhouse, though larger in scale.
• PKF Smith Cooper: Mid-tier UK accountancy and advisory firm offering audit, tax, corporate finance, and business restructuring services across the Midlands and East of England. Similar service breadth and SME/HNW target segments.
• Moore Kingston Smith: London-based member of the Moore Global network providing accounting, tax, audit, and advisory services to SMEs, HNW individuals, and not-for-profits. Comparable mid-tier UK practice with a similar full-service advisory model.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/CharterhouseAcc

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Charterhouse