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Professional services firms headquartered in Leeds

Tamtam tracks 55 professional services firms headquartered in Leeds. This list ranks the 30 largest by number of employees on LinkedIn, led by NG Bailey, Tetra Tech Europe and WYG Group. Their median headcount is 381. Half of them were founded in 1995 or later.

馃嚞馃嚙 Leeds30 companiesUpdated Nov 11, 2026

These Leeds-based professional services firms are mostly large, established companies, with several having been founded before the mid-20th century. The list includes companies such as NG Bailey, an engineering and services business, Tetra Tech Europe, which offers consulting and engineering services, and WYG Group, a professional services firm. BJSS is an IT and engineering consultancy, while HGF Limited provides integrated IP solutions.

A notable characteristic is the strong presence of legal services, with firms like HGF Limited, Walker Morris LLP, and Stowe Family Law LLP. The companies also show a mix of industries beyond legal, including construction, IT consulting, and financial services, indicating a diverse professional services sector in Leeds.

#CompanyIndustryHeadquarters EmployeesFounded
1
NG Baileyngbailey.com

A leading UK engineering and services business with a focus on excellence, integration, apprenticeship schemes, and investing in training and development

Construction 馃嚞馃嚙 Leeds 4,914 1921
2
Tetra Tech Europetetratech.com

A leading consulting and engineering services provider, specializing in sustainable solutions for diverse projects in the UK and Europe

Business Consulting and Services 馃嚞馃嚙 Leeds 1,634 1966
3
WYG Grouptetratecheurope.com

An award-winning professional services firm offering management consultancy, project management, technical services, and international development solutions to create value and manage risk

Business Consulting and Services 馃嚞馃嚙 Leeds 1,056 1959
4
BJSSbjss.com

Award-winning technology and engineering consultancy providing IT solutions to global organizations, recognized with a Queen's Award for Enterprise Visit our website to learn more

IT Services and IT Consulting 馃嚞馃嚙 Leeds 912 1993
5
HGF Limitedhgf.com

Leading European firm providing fully integrated IP solutions with over 200 specialists in patents, trademarks, designs, and legal services across various industries

Legal Services 馃嚞馃嚙 Leeds 871 1995
6
Eville & Joneseandj.co.uk

Provision of outsourced official veterinary controls including audit, verification, and enforcement in animal health, public health, and welfare.

Veterinary Services 馃嚞馃嚙 Leeds 720 1993
7
Hippohippodigital.co.uk

Designs and builds bespoke digital services using data, human-centered design, and engineering, focusing on inclusive and impactful solutions for organizations and society.

IT Services and IT Consulting 馃嚞馃嚙 Leeds 631 2016
8
Walker Morris LLPwalkermorris.co.uk

Providing tailored, strategic legal advice and services through a diverse team of talented lawyers and professionals to global clients.

Law Practice 馃嚞馃嚙 Leeds 589 n/a
9
Alexander Mann Solutionsweareams.com

A global leader in talent acquisition and management services, providing innovative solutions to attract, engage, and retain top talent for organizations worldwide through consulting and outsourcing services

Staffing and Recruiting 馃嚞馃嚙 Leeds 587 n/a
10
Mach Recruitment Ltdmach.co.uk

The company provides innovative and proactive on-site, temporary, and permanent recruitment services with a focus on meeting all staffing needs efficiently

Staffing and Recruiting 馃嚞馃嚙 Leeds 567 2007
11
Sweco UKsweco.co.uk

A leading architecture and engineering consultancy, Sweco plans and designs sustainable communities and cities for the future worldwide

Civil Engineering 馃嚞馃嚙 Leeds 489 1915
12
Capita Customer Managementcapitacustomermanagement.co.uk

Specializing in customer management, we work with top brands to handle the entire customer journey and product lifecycle, guaranteeing transformative results

Outsourcing and Offshoring Consulting 馃嚞馃嚙 Leeds 453 1984
13
Progenytheprogenygroup.com

An integrated UK firm offering financial planning, asset management, tax, HR, legal services, and more to make a positive impact for clients and society

Financial Services 馃嚞馃嚙 Leeds 428 2016
14
Stowe Family Law LLPstowefamilylaw.co.uk

Specialist family law firm with a national and international reputation, offering a wide range of services including divorce, mediation, and prenuptial agreements

Law Practice 馃嚞馃嚙 Leeds 391 1982
15
BTG Eddisonseddisons.com

Providing expert advice and professional services in the real estate sector, specializing in delivering innovative solutions for clients nationwide and overseas

Real Estate 馃嚞馃嚙 Leeds 381 1844

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16
First Actuarialfirstactuarial.co.uk

First Actuarial provides personalized pension advisory services, prioritizing client needs and professional integrity, with a focus on employee financial security and development

Financial Services 馃嚞馃嚙 Leeds 378 2004
17
Redmayne Bentley LLPredmayne.co.uk

Independent firm offering bespoke investment management, stockbroking, ISAs, SIPPs, focusing on personalized client service and wealth enhancement.

Financial Services 馃嚞馃嚙 Leeds 369 1875
18
IDHLidhlagency.com

A full-service digital marketing agency specializing in SEO, paid media, web development, eCommerce strategy, email marketing, and data management

Marketing Services 馃嚞馃嚙 Leeds 363 2000
19
CSGcsgtalent.com

Global talent experts specializing in permanent and executive search, with a focus on seven major practice areas, connecting clients and candidates for long-term success

Staffing and Recruiting 馃嚞馃嚙 Leeds 354 2003
20
Clarion Solicitorsclarionsolicitors.com

A team of experienced lawyers and support staff focused on building strong partnerships, protecting clients, and fostering growth and success

Law Practice 馃嚞馃嚙 Leeds 328 n/a
21
Ison Harrison Solicitorsisonharrison.co.uk

A team of solicitors and lawyers providing a comprehensive range of legal services for individuals and businesses with a strong reputation for quality

Legal Services 馃嚞馃嚙 Leeds 328 1978
22
Simpson Millar Solicitorssimpsonmillar.co.uk

A consumer law firm with a history dating back to 1841, offering transparent and straightforward legal services while prioritizing client communication and accessibility

Law Practice 馃嚞馃嚙 Leeds 310 1841
23
Xalientxalient.com

Xalient offers transformative network, security, and communication solutions with AIOps technologies to build resilient, adaptable networks and enhance customer experiences

IT Services and IT Consulting 馃嚞馃嚙 Leeds 267 2015
24
Aire Logic Limitedairelogic.com

Specializes in healthcare ICT strategy, software and product development, focusing on national system integration and full software lifecycle expertise.

IT Services and IT Consulting 馃嚞馃嚙 Leeds 258 2007
25
Sanderson Weatherall | certified B Corpsw.co.uk

Commercial property consultancy firm with expertise in advising owners, occupiers, investors, and developers on property and associated assets for success

Real Estate 馃嚞馃嚙 Leeds 255 n/a
26
26PMX26pmx.com

A leading UK digital agency specializing in developing transformative digital platforms and marketing strategies driven by data, insight, and strategy

Advertising Services 馃嚞馃嚙 Leeds 240 2005
27
Caval Ltdcaval.co.uk

A leading construction recruitment specialist providing excellent service across sectors, connecting clients with candidates for temporary and permanent positions

Staffing and Recruiting 馃嚞馃嚙 Leeds 196 2008
28
The Private Office (TPO)theprivateoffice.com

Financial planning company offering tailored solutions for individuals, families, businesses, and trusts, including wealth management, investment portfolio management, and estate planning

Financial Services 馃嚞馃嚙 Leeds 192 2008
29
Bartlett Groupbartlettgroup.com

An independent insurance and financial solutions provider since 1940, offering tailored services globally with a commitment to excellence and community support

Financial Services 馃嚞馃嚙 Leeds 186 1940
30
ICS-digitalics-digital.com

Global digital agency specializing in SEO, content, advertising, translation, and digital PR across highly regulated and competitive industries worldwide.

Marketing Services 馃嚞馃嚙 Leeds 185 2008

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.

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