Newby Castleman

What Newby Castleman does

Newby Castleman LLP is a private, UK-registered Limited Liability Partnership and chartered accountancy practice headquartered in Leicester with a second office in Loughborough. The firm (founded 1851, per firmographic records, though the precise founding date is not documented in structured source material) is registered with the Institute of Chartered Accountants in England and Wales (ICAEW) to carry on audit work in the UK, and offers a full-service professional suite spanning statutory audit and accounting, corporate and personal tax compliance and advisory, VAT, payroll and bookkeeping, cloud accounting and Making Tax Digital readiness, trust and estates, valuations, and charity/non-profit advisory. Service delivery is partner-led, with compliance work performed under ICAEW bye-laws and a code of ethics.

The firm operates a horizontal segmentation model targeting UK small-to-medium businesses, partnerships and sole traders, property landlords, high-net-worth individuals, charities, and not-for-profit organisations. Its technical foundation is third-party cloud accounting software integration aligned to HMRC's Making Tax Digital regime, with no proprietary technology platform disclosed. Adjacent financial services — investment and wealth management — are delivered through an associated FCA-regulated appointed representative, Newby Castleman Wealth Management Limited (whose principal is GHC Wealth Management Limited), extending the practice beyond compliance into regulated investment advice.

Revenue is generated through time-based professional services fees billed by principals and staff (with disbursements for travel and expenses passed through), supplemented by an insurance-backed Fee Protection Service. The firm markets through content publishing on regulatory change, email newsletter sign-up, and organic social (Instagram). Geographic reach is described as national despite the two physical offices, and there are no funding rounds, external investors, M&A, or parent company relationships disclosed. Two partners — Caroline Walpole and Richard Buckby — were internally promoted in April 2025, signalling governance continuity and capacity building within the partnership.

Name

Newby Castleman

Legal name

Newby Castleman LLP

Website

https://newbycastleman.co.uk

Company type

Private

Founded year

1851

Operating status

Operating

Headcount range

11–50 employees

Short description

Newby Castleman LLP is a UK-registered chartered accountancy practice based in Leicester and Loughborough, providing audit, tax, VAT, payroll, cloud accounting, and wealth advisory services to SMEs, sole traders, landlords, charities, and high-net-worth individuals nationally under a partner-led model.

Ownership category

akta.pro rank

Headquarters

HQ city

Leicester

HQ country

United Kingdom

HQ region

Europe

Offices2 records

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. Professional Services Fees: Fees computed based on time spent by principals and staff, including sub-contractors or consultants where necessary, based on levels of skill and responsibility involved. Disbursements represent travel, accommodation and other expenses.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Newby Castleman is an independent chartered accountancy and business advisory practice that delivers audit and accounting, corporate and personal tax compliance and advisory, VAT, payroll, bookkeeping, and Making Tax Digital-compliant cloud accounting services to UK businesses and individuals. The firm also offers specialist services for charities and not-for-profit organisations, trust and estate administration, business valuations, fee protection insurance against HMRC investigation costs, and wealth management delivered through its associated FCA-authorised company.

Product overview

Newby Castleman is an independent accountancy and business advisory practice offering a comprehensive suite of professional services. The core offering comprises audit and accounting, business tax, personal tax, payroll and bookkeeping, VAT, and cloud accounting services. Additional specialisms include charities and not for profit, trust and estates, valuations, and wealth management (delivered via the associated company Newby Castleman Wealth Management Limited). A fee protection insurance service is also offered to protect clients from HMRC investigation costs. The firm operates from Leicester and Loughborough offices, providing partner-led advisory services nationally.

Differentiator

Problem solved

Functional benefit

Products and services

• Audit & Accounting Statutory audit services and accounting compliance for companies, LLPs, charities, and other entities under UK GAAP.
• Business Tax Corporate and personal tax compliance and advisory services including R&D tax relief claims and tax planning for businesses.
• Charities & Not for Profit Specialised accountancy and advisory services for charities and non-profit organisations.
• Cloud Accounting Digital accounting services using cloud-based software for record keeping and financial management.
• Fee Protection Service Insurance-backed service protecting clients from accountancy and tax investigation fees associated with HMRC enquiries.
• Making Tax Digital Advisory services helping clients comply with HMRC's Making Tax Digital requirements for digital record keeping and quarterly reporting.
• Payroll & Bookkeeping Payroll processing, bookkeeping, and related compliance services for businesses.
• Private Client Tax Tax planning and compliance services for individuals, including income tax, capital gains tax, and inheritance tax.
• Trust & Estates Estate administration and trust management tax services.
• VAT VAT registration, compliance, and advisory services.
• Valuations Business and asset valuation services.
• Wealth Management Investment and wealth management services delivered through associate company Newby Castleman Wealth Management Limited, authorised and regulated by the FCA.

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Three partnerships are on record, tiered core and minor.

• Newby Castleman Wealth Management LimitedcoreOthersAn associated company of Newby Castleman LLP, authorized to conduct investment business under the Financial Services and Markets Act 2000. The company is an appointed representative of GHC Wealth Management Limited, an independent firm authorized and regulated by the Financial Conduct Authority.
• GHC Wealth Management LimitedcoreOthersIndependent firm authorized and regulated by the Financial Conduct Authority. Newby Castleman Wealth Management Limited is an appointed representative of GHC Wealth Management Limited.
• Nexus Underwriting LimitedminorOthersProfessional indemnity insurer of Newby Castleman LLP, located at 150 Leadenhall Street, London, EC3V 4QT. Territorial coverage is worldwide excluding professional business carried out from offices in the United States of America or Canada.

Scale indicators1 record

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Mazars UK: International mid-tier audit and advisory firm with significant UK presence serving SMEs, mid-market, and large corporates. Competes for similar mid-market audit and tax mandates but at materially larger scale.
• Crowe UK: Mid-tier UK Top 10 accountancy network offering audit, tax, advisory, and consulting to mid-market and larger corporates. Larger and broader than Newby Castleman but competes for similar SME and owner-managed business mandates.
• BDO UK: Top 5 UK accountancy and advisory firm serving mid-market corporates, SMEs, and not-for-profits. Overlaps with Newby Castleman in mid-market audit, tax, and advisory but operates at significantly larger scale with broader service portfolio.
• RSM UK: Mid-tier Top 10 UK audit, tax, and consulting firm focused on mid-market enterprises. Competes for similar owner-managed business and mid-market audit mandates but at substantially larger scale and broader geographic footprint.

Direct peers

• Saffery Champness: UK Top 20 chartered accountancy firm with strong private client, trust, and wealth management practices. Closely comparable in HNWI tax advisory, trust & estate services, and partner-led mid-market positioning.
• HW Fisher: London-based chartered accountancy firm of similar size offering audit, tax, corporate advisory, and wealth management to SMEs, partnerships, and HNWIs. Comparable in scale, service breadth, and client segmentation.
• PKF Smith Cooper: UK Top 30 chartered accountancy practice also headquartered in the East Midlands, offering audit, tax, advisory, and wealth management services to SMEs and owner-managed businesses. Highly comparable in size, regional focus, and full-service mid-market positioning.
• Beever and Struthers: UK mid-tier chartered accountancy practice with strong not-for-profit and charity specialism alongside SME audit and tax. Comparable in size, vertical niche focus, and partner-led service delivery model.
• Moore Kingston Smith: UK mid-tier chartered accountancy and advisory firm serving SMEs, not-for-profits, and private clients with audit, tax, and wealth management services. Comparable in size, partner-led service model, and not-for-profit specialization.
• MHA MacIntyre Hudson: UK Top 20 chartered accountancy practice offering audit, tax, and advisory services to SMEs and mid-market businesses. Comparable multi-office, partner-led structure and focus on owner-managed businesses across UK regions.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/NewbyCastleman

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries1 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 Newby Castleman