# The 25 largest professional services firms in Bristol

Tamtam tracks 25 professional services firms headquartered in Bristol. This list ranks all of them by number of employees on LinkedIn, led by Amdaris, Sanderson and Sanderson Solutions Group. Their median headcount is 105. Half of them were founded in 2008 or later.

The professional services sector in Bristol is represented by a diverse group of firms, primarily mid-sized, with a strong presence in staffing and recruiting, IT services, and legal and engineering consultancy. Amdaris, for example, specializes in software development and digital transformation. Lyons Davidson Limited is a national law firm providing legal services, while Stride Treglown focuses on architectural design. delaware United Kingdom & Ireland offers IT consulting and digital solutions.

A significant portion of these companies, such as Sanderson, Sanderson Solutions Group, Project People, and Rise Technical, operate in staffing and recruiting. This indicates a strong regional focus on talent acquisition and placement across various industries. While some firms, like Stirling Dynamics (aviation and aerospace component manufacturing) and Hartnell Taylor Cook (real estate), add to the sectoral diversity, the prevalence of recruitment firms suggests a demand for human capital solutions within the Bristol business landscape.

🇬🇧 Bristol · 25 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Amdaris](https://www.tamtam.ai/c/amdaris) (amdaris.com)<br>Providing innovative software development, product design, digital transformation, application support, and consultancy services from UK and Eastern Europe. | Software Development | 🇬🇧 Bristol | 958 | 2009 |
| 2 | [Sanderson](https://www.tamtam.ai/c/sanderson-bristol) (sandersonplc.com)<br>Global recruitment solutions provider specializing in permanent/contract hires, executive search, RPO/MSP, project teams, and personalized service excellence for clients and candidates worldwide | Staffing and Recruiting | 🇬🇧 Bristol | 479 | 1975 |
| 3 | [Sanderson Solutions Group](https://www.tamtam.ai/c/sanderson-solutions-group) (sandersonplc.com)<br>Global recruitment solutions company with 40 years of experience, specializing in tailored recruitment services including individual hires, project teams, executive search, and fully outsourced solutions | Staffing and Recruiting | 🇬🇧 Bristol | 415 |  |
| 4 | [Lyons Davidson Limited](https://www.tamtam.ai/c/lyons-davidson-limited) (lyonsdavidson.co.uk)<br>A national law firm with offices in multiple locations, offering high-quality, cost-effective legal services to institutions, businesses, and individuals Using technology for efficient solutions | Legal Services | 🇬🇧 Bristol | 392 | 1972 |
| 5 | [delaware United Kingdom & Ireland](https://www.tamtam.ai/c/delaware-united-kingdom-and-ireland) (delaware.co.uk)<br>A global consultancy partnering with leading technology providers to deliver digital solutions, guiding clients towards an intelligent future with over 4,000 professionals worldwide | IT Services and IT Consulting | 🇬🇧 Bristol | 361 | 2003 |
| 6 | [Stride Treglown](https://www.tamtam.ai/c/stride-treglown) (stridetreglown.com)<br>Employee-owned architectural practice specializing in designing Better Places for various sectors, emphasizing Empowered People and Resilient Partnerships with purpose-driven design | Architecture and Planning | 🇬🇧 Bristol | 350 | 1953 |
| 7 | [Project People](https://www.tamtam.ai/c/project-people) (projectpeople.com)<br>Global talent acquisition and management solutions provider, offering recruitment services, RPO, talent technology systems, payroll services, and project-based assignments across various industries | Staffing and Recruiting | 🇬🇧 Bristol | 298 |  |
| 8 | [Rise Technical](https://www.tamtam.ai/c/rise-technical) (risetechnical.co.uk)<br>Finds, attracts, and places outstanding permanent and contract engineering and technical talent for businesses of all sizes, focusing on motivational and technical matching. | Staffing and Recruiting | 🇬🇧 Bristol | 279 | 2005 |
| 9 | [Precision Resource Group (PRG)](https://www.tamtam.ai/c/precision-resource-group-prg) (precisionresourcegroup.co.uk)<br>Global leader in recruitment and talent solutions specializing in tech, digital, engineering, insurance, FinTech, and other key markets with a client-centric approach | Staffing and Recruiting | 🇬🇧 Bristol | 255 |  |
| 10 | [Opus Recruitment Solutions](https://www.tamtam.ai/c/opus-recruitment-solutions) (opusrecruitmentsolutions.com)<br>A dynamic IT and Engineering recruitment consultancy with global operations, known for high-quality solutions and rapid growth in various industry awards | Staffing and Recruiting | 🇬🇧 Bristol | 233 | 2008 |
| 11 | [Stirling Dynamics](https://www.tamtam.ai/c/stirling-dynamics) (stirling-dynamics.com)<br>An advanced engineering company providing high-end products and services globally, specializing in aerospace and marine platforms with a focus on customer satisfaction | Aviation and Aerospace Component Manufacturing | 🇬🇧 Bristol | 147 | 1987 |
| 12 | [Hartnell Taylor Cook](https://www.tamtam.ai/c/hartnell-taylor-cook) (htc.uk.com)<br>Property consultancy offering exceptional combinations of people, skills, and services to create value for clients in UK regions, managing diverse portfolios for national and private clients | Real Estate | 🇬🇧 Bristol | 131 | 1922 |
| 13 | [Nova Systems International](https://www.tamtam.ai/c/nova-systems-international) (novasystems.com)<br>Global engineering services and technology solutions company, specializing in keeping nations and people safe through defense, essential services, and cybersecurity partnerships worldwide | Engineering Services | 🇬🇧 Bristol | 105 | 2012 |
| 14 | [Test and Verification Solutions](https://www.tamtam.ai/c/test-and-verification-solutions) (alpinumconsulting.com)<br>A company in the embedded computing industry provides hardware verification, software testing, and offshoring services to improve time to market and product quality | Semiconductor Manufacturing | 🇬🇧 Bristol | 88 | 2008 |
| 15 | [Synoptix](https://www.tamtam.ai/c/synoptix) (synoptix.co.uk)<br>Engineering solutions provider offering high-quality systems engineering support, access to scarce-skills experts, and expertise in systems, safety, and reliability engineering across industries | Engineering Services | 🇬🇧 Bristol | 86 | 2011 |
| 16 | [Apache iX Limited](https://www.tamtam.ai/c/apache-ix-limited) (apacheix.co.uk)<br>A Bristol-based consultancy providing P3M and technical services to government and industry clients, specializing in secure cloud solutions and change management | Defense and Space Manufacturing | 🇬🇧 Bristol | 61 | 2014 |
| 17 | [Easton Bevins](https://www.tamtam.ai/c/easton-bevins) (eastonbevins.co.uk)<br>Leading independent property consultancy offering expert advice and services for commercial and private clients in property purchase, design, management, leasing, and more across the UK | Real Estate | 🇬🇧 Bristol | 51 | 1985 |
| 18 | [Hero \| Technology Talent Solutions](https://www.tamtam.ai/c/hero-technology-talent-solutions) (herotalent.co.uk)<br>The company provides a modern approach to recruitment for tech-focused startups and SMEs, aiming to save time, money, and improve effectiveness | Staffing and Recruiting | 🇬🇧 Bristol | 45 | 2016 |
| 19 | [◯ accelerate agency](https://www.tamtam.ai/c/accelerate-agency) (evolvagency.io)<br>Accelerate Agency specializes in data-driven SEO services, delivering genuine results, growth, and ROI for major SaaS brands with a client-focused approach | Advertising Services | 🇬🇧 Bristol | 42 | 2017 |
| 20 | [Imagile Professional Services](https://www.tamtam.ai/c/imagile-professional-services) (imagileps.com)<br>A UK asset management consultancy specializing in lifecycle planning, construction delivery, safety, health, environmental projects, with a focus on sustainability and client-focused services | Business Consulting and Services | 🇬🇧 Bristol | 25 | 2005 |
| 21 | [Infinity Systems Engineering LTD.](https://www.tamtam.ai/c/infinity-systems-engineering-ltd) (infinity-systems.co.uk)<br>A Bristol-based Engineering Consultancy specializing in Systems and Safety Engineering, serving customers in the Defence sector and expanding into other engineering sectors | Defense and Space Manufacturing | 🇬🇧 Bristol | 24 | 2019 |
| 22 | [Commercial Property Advisors Ltd](https://www.tamtam.ai/c/commercial-property-advisors-ltd) (commercialpropertyadvisors.co.uk)<br>Professional business rates advisory firm in Bristol, regulated by RICS With experienced team, ensures correct business rates payments and provides professional service | Financial Services | 🇬🇧 Bristol | 22 | 2015 |
| 23 | [Rock Solid Knowledge Ltd](https://www.tamtam.ai/c/rock-solid-knowledge-ltd) (rocksolidknowledge.com)<br>A team of trainers/consultants in Bristol specializing in complex and innovative development projects using cutting edge technologies in various industries | Software Development | 🇬🇧 Bristol | 19 | 2009 |
| 24 | [Desynit Limited](https://www.tamtam.ai/c/desynit-limited) (desynit.com)<br>A team of Salesforce experts delivering implementation, customization, and support services to drive innovation and help organizations reach their next level | IT Services and IT Consulting | 🇬🇧 Bristol | 19 | 2000 |
| 25 | [Petersen Associates Limited](https://www.tamtam.ai/c/petersen-associates-limited) (petersenassociates.co.uk)<br>Commercial property consultants specializing in management of high quality logistics parks, offering services to developers, landlords, and tenants with RICS regulation Expert in property and asset management | Real Estate | 🇬🇧 Bristol | 11 | 2010 |

## 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.

## More company lists in Bristol

- [The largest companies in Bristol](https://www.tamtam.ai/l/largest-companies-bristol) (251)
- [Multinational companies in Bristol](https://www.tamtam.ai/l/multinational-companies-bristol) (41)
- [Retail chains in Bristol](https://www.tamtam.ai/l/retail-chains-bristol) (27)
- [IT services companies in Bristol](https://www.tamtam.ai/l/it-services-companies-bristol) (25)

## The same list elsewhere in United Kingdom

- [Professional services firms in the United Kingdom](https://www.tamtam.ai/l/professional-services-firms-united-kingdom) (2,706)
- [Professional services firms in Scotland](https://www.tamtam.ai/l/professional-services-firms-scotland) (112)
- [Professional services firms in London](https://www.tamtam.ai/l/professional-services-firms-london) (1,248)
- [Professional services firms in Manchester](https://www.tamtam.ai/l/professional-services-firms-manchester) (86)
- [Professional services firms in Leeds](https://www.tamtam.ai/l/professional-services-firms-leeds) (55)
- [Professional services firms in Edinburgh](https://www.tamtam.ai/l/professional-services-firms-edinburgh) (43)
- [Professional services firms in Birmingham](https://www.tamtam.ai/l/professional-services-firms-birmingham) (37)
- [Professional services firms in Glasgow](https://www.tamtam.ai/l/professional-services-firms-glasgow) (29)

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Source: https://www.tamtam.ai/l/professional-services-firms-bristol