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RSM Tenon

Full company profile

uuid003nrg4

Namestring
RSM Tenon
Websiteurl
rsmtenon.com
Company typeenum
Private
Founded yearint
2000
Short descriptiontext

RSM Tenon was a London-headquartered UK professional services firm offering audit, tax, and consulting services to enterprise clients via direct engagement, founded in 2000 and formerly listed on the LSE as TNO.

Ownership categoryenum
Headcount rangeband
1,001–5,000
akta.pro rankint
HeadquartersLondon, United Kingdom
HQ citystring
London
HQ countrystring
United Kingdom
HQ regionstring
Europe
Markets served

Serves global market

Keyword5 values
audit and assurance, tax advisory services, business consulting, risk advisory, regulatory compliance
NAICS code3 codes
  • Professional, Scientific, and Technical Services54
  • Accounting, Tax Preparation, Bookkeeping, and Payroll Services54121
  • Other Scientific and Technical Consulting Services54169
SIC code2 codes
  • Services-Engineering, Accounting, Research, Management8700
  • Services-Management Services8741
Product category
Accounting and Professional Services
Social media profiles2 records
Marketing channels1 record

Each record includes

Title, Type, Stage, Description, Source

Distribution channels1 record

Each record includes

Title, Type, Scope, Target buyer, Description, Source

Cost components4 values
Personnel, Operations, Marketing or Sales, Technology or R&D
GTM typeB2B
B2B
Offering typeServices
Services
Core offering1 text field

RSM Tenon was a UK-based professional services firm offering audit and assurance, tax, and advisory/consulting services to mid-market and enterprise clients. As a member of the RSM International global accounting network, it provided cross-border expertise alongside its domestic UK practice. Revenue was earned principally through engagement-based service and consulting fees.

Differentiator
Functional benefit
Problem solved
Product and service3 records
1Audit and Assurance Services
CategoryAudit and Assurance
Description

Statutory and voluntary audit, assurance, and related attestation engagements delivered to UK-based corporate clients.

2Tax Services
CategoryTax Advisory and Compliance
Description

Corporate tax compliance, tax advisory, and international tax services provided to mid-market and enterprise clients in the UK.

3Consulting and Advisory Services
CategoryManagement Consulting
Description

Management consulting, corporate finance, restructuring, and risk advisory engagements for UK corporates, supported by the RSM International global network.

No data
Peers10 records
1Crowe UK
TypeDirect peer
Description

Crowe UK is a mid-tier audit, tax, and advisory firm serving mid-market UK clients with a comparable service mix and competitive positioning to RSM Tenon.

2Grant Thornton UK
TypeDirect peer
Description

Grant Thornton UK is one of the largest mid-tier UK accounting and advisory firms, directly competing with RSM Tenon across audit, tax, and consulting services to mid-market and listed clients.

3Deloitte UK
TypeBroad incumbent
Description

Deloitte UK is a Big 4 incumbent offering the same audit, tax, and consulting services as RSM Tenon, but at much greater scale and with a broader portfolio including strategy consulting and large-cap advisory work.

4BDO UK
TypeDirect peer
Description

BDO UK is the British member firm of BDO Global, offering audit, tax, and advisory services with comparable mid-tier positioning, headcount scale, and target client segments (mid-market UK corporates) to RSM Tenon.

5PKF Smith Cooper
TypeDirect peer
Description

PKF Smith Cooper is a UK mid-tier accountancy firm offering audit, tax, and advisory services — a smaller but directly comparable direct competitor in the UK mid-market accounting space.

6MHA MacIntyre Hudson
TypeDirect peer
Description

MHA MacIntyre Hudson is a leading UK mid-tier accountancy and advisory firm providing audit, tax, and consulting services to SMEs and mid-market clients — a comparable direct peer in scale and service mix to RSM Tenon.

7Moore UK
TypeDirect peer
Description

Moore UK is the UK member of Moore Global, a mid-tier accounting network providing audit, tax, and advisory services to a similar mid-market client base as RSM Tenon.

8Mazars UK
TypeDirect peer
Description

Mazars UK operates as part of the Mazars global integrated partnership, providing audit, tax, and advisory services of comparable scale and mid-tier positioning to RSM Tenon's offering in the UK.

9Azets UK
TypeEmerging player
Description

Azets is a growing UK and Nordic accounting and advisory group formed via private equity-backed roll-ups of regional firms, offering audit, tax, and advisory services to mid-market clients — competing in adjacent segments with similar service lines.

10RSM UK (current entity)
TypeDirect peer
Description

RSM UK is the successor entity that absorbed RSM Tenon and continues operating as the UK member of the RSM International network — directly comparable to the subject firm in services, network affiliation, and market position.

Market position
Customer concentration

Classification, Details

Ideal customer profile1 record

Each record includes

Profile, Firmographic size, Sales motion, Sales cycle length, Buying structure, Purchase trigger, Buyer persona, Geography, Industry vertical, Primary use case, Description, Pain points, Evidence proof points, Target buyer

Technology focused
No
API detail
Has APIbool
No

Docs URL, Description

AI maturity
App detail

Has app

Core technology
Revenue estimate
Valuation estimate
Number of profiles
Profiles1 record

Each record includes

Name, Designation, Designation category, Overview, Profile commentary, Source

No data
No data
Funding overview

Funding stage, Last funding date, Total funding USD

Funding rounds

Each record includes

Round, Amount USD, Date, Pre money valuation, Total investors, Investors, News

Investors

Each record includes

Name, Type, Date of entry, Rounds participated, Website

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

M&A

Each record includes

Name, Acquisition type, Announced date, Completed date, Status, Website, News

Investment

Each record includes

Name, Round, Announced date, Lead investor, Website, News

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

RSM Tenon

Accounting and Professional Servicesrsmtenon.com

RSM Tenon was a London-headquartered UK professional services firm offering audit, tax, and consulting services to enterprise clients via direct engagement, founded in 2000 and formerly listed on the LSE as TNO.

RSM Tenon firmographics

Firmographics
Name
RSM Tenon
Website
https://rsmtenon.com
Company type
Private
Founded year
2000
Headcount range
1,001–5,000 employees
Short description
RSM Tenon was a London-headquartered UK professional services firm offering audit, tax, and consulting services to enterprise clients via direct engagement, founded in 2000 and formerly listed on the LSE as TNO.
Ownership category
akta.pro rank

Where RSM Tenon is headquartered

Location

Headquarters

HQ city
London
HQ country
United Kingdom
HQ region
Europe

Markets served

RSM Tenon business model

Business model
GTM type
B2B
Offering type
Services
Cost components
Personnel, Operations, Marketing or Sales, Technology or R&D

Distribution channels1 record

Marketing channels1 record

RSM Tenon product offering

Product offering

Core offering

RSM Tenon was a UK-based professional services firm offering audit and assurance, tax, and advisory/consulting services to mid-market and enterprise clients. As a member of the RSM International global accounting network, it provided cross-border expertise alongside its domestic UK practice. Revenue was earned principally through engagement-based service and consulting fees.

Differentiator

Problem solved

Functional benefit

Products and services

  • Audit and Assurance Services Statutory and voluntary audit, assurance, and related attestation engagements delivered to UK-based corporate clients.
  • Tax Services Corporate tax compliance, tax advisory, and international tax services provided to mid-market and enterprise clients in the UK.
  • Consulting and Advisory Services Management consulting, corporate finance, restructuring, and risk advisory engagements for UK corporates, supported by the RSM International global network.

Companies that use RSM Tenon

Customer profile

Ideal customer profiles1 record

RSM Tenon technology and API

Technology

Technology focussed No

API detail

Has API
No
API docs
API detail

Core technology

AI maturity

App detail

RSM Tenon competitors and assessment

Company assessment

Direct peers

  • Crowe UK: Crowe UK is a mid-tier audit, tax, and advisory firm serving mid-market UK clients with a comparable service mix and competitive positioning to RSM Tenon.
  • Grant Thornton UK: Grant Thornton UK is one of the largest mid-tier UK accounting and advisory firms, directly competing with RSM Tenon across audit, tax, and consulting services to mid-market and listed clients.
  • BDO UK: BDO UK is the British member firm of BDO Global, offering audit, tax, and advisory services with comparable mid-tier positioning, headcount scale, and target client segments (mid-market UK corporates) to RSM Tenon.
  • PKF Smith Cooper: PKF Smith Cooper is a UK mid-tier accountancy firm offering audit, tax, and advisory services — a smaller but directly comparable direct competitor in the UK mid-market accounting space.
  • MHA MacIntyre Hudson: MHA MacIntyre Hudson is a leading UK mid-tier accountancy and advisory firm providing audit, tax, and consulting services to SMEs and mid-market clients — a comparable direct peer in scale and service mix to RSM Tenon.
  • Moore UK: Moore UK is the UK member of Moore Global, a mid-tier accounting network providing audit, tax, and advisory services to a similar mid-market client base as RSM Tenon.
  • Mazars UK: Mazars UK operates as part of the Mazars global integrated partnership, providing audit, tax, and advisory services of comparable scale and mid-tier positioning to RSM Tenon's offering in the UK.
  • RSM UK (current entity): RSM UK is the successor entity that absorbed RSM Tenon and continues operating as the UK member of the RSM International network — directly comparable to the subject firm in services, network affiliation, and market position.

Broad incumbents

  • Deloitte UK: Deloitte UK is a Big 4 incumbent offering the same audit, tax, and consulting services as RSM Tenon, but at much greater scale and with a broader portfolio including strategy consulting and large-cap advisory work.

Emerging players

  • Azets UK: Azets is a growing UK and Nordic accounting and advisory group formed via private equity-backed roll-ups of regional firms, offering audit, tax, and advisory services to mid-market clients — competing in adjacent segments with similar service lines.

Market position

Customer concentration

RSM Tenon social profiles

Digital presence

RSM Tenon financial estimates

Financial estimate

Revenue estimate

Valuation estimate

RSM Tenon leadership team

Management profile

Number of profiles

Profiles1 record

RSM Tenon funding detail

Funding detail

Funding overview

Funding rounds

Investors

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

RSM Tenon M&A and investment

M&A and investment

M&A

Investments

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

Frequently asked questions about RSM Tenon

What does RSM Tenon do?

RSM Tenon was a UK-based professional services firm offering audit and assurance, tax, and advisory/consulting services to mid-market and enterprise clients. As a member of the RSM International global accounting network, it provided cross-border expertise alongside its domestic UK practice. Revenue was earned principally through engagement-based service and consulting fees.

When was RSM Tenon founded?

RSM Tenon was founded in 2000. It employs 1,001 to 5,000 people.

Where is RSM Tenon based?

RSM Tenon is headquartered in London, United Kingdom, in the Europe region.

Who are RSM Tenon's main competitors?

Direct peers on record are Crowe UK, Grant Thornton UK, BDO UK, PKF Smith Cooper, MHA MacIntyre Hudson, Moore UK, Mazars UK and RSM UK (current entity). Deloitte UK is listed as a broad incumbent. Azets UK is listed as an emerging player.

Does RSM Tenon have an API?

No public API is recorded for RSM Tenon.

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