| # | Company | Employees |
|---|---|---|
| 1 |
Superdrycareers.superdry.com
The company focuses on creating authentic, high-quality, and sustainable fashion pieces that stand the test of time, on a style-obsessed journey |
3,125 |
| 2 |
University of Gloucestershireglos.ac.uk
Providing high-quality education to international students in Gloucester and Cheltenham, combining academic study with access to countryside and leisure. |
2,050 |
| 3 |
Spirax Sarcospiraxsarco.com
Provider of comprehensive steam system products, services, and engineering expertise to improve plant performance and meet environmental goals. |
1,924 |
| 4 | 1,292 | |
| 5 |
PortmanDentexportmandentex.com
Providing dental care for 15 million patients annually in the UK and Ireland through over 370 practices and 2,400 clinicians Part of Portman Healthcare International Group |
1,191 |
| 6 |
Commercialcommercial.co.uk
A UK-based business transformation company with dedicated divisions for office supplies, IT services, managed print services, and more, emphasizing sustainability and client satisfaction |
1,061 |
| 7 | 1,060 | |
| 8 |
Spirax Groupspiraxgroup.com
Global thermal energy and fluid technology group offering solutions to improve industrial processes efficiency, safety, and sustainability, with focus on decarbonisation and electrification |
628 |
| 9 |
Agriiagrii.co.uk
Provider of agronomy services, technology, and strategic advice focused on sustainable farming through research, innovation, and comprehensive trials network. |
589 |
| 10 |
Hazlewoodshazlewoods.co.uk
A top UK business advisor and Chartered Accountant, Hazlewoods offers personalized accounting, tax, audit, and business advice, aiming to support clients at every stage of their journey |
517 |
| 11 |
National Starnationalstar.org
The company provides personalized learning, transition, and lifestyle services for individuals with disabilities to help them reach their full potential |
486 |
| 12 |
Portman Dental Careportmandentex.com
A growing network of private dental practices focused on prioritizing patients' well-being and providing top-quality care from industry-leading clinicians |
457 |
| 13 |
Kohler Mira Ltd.mirashowers.co.uk
A leading company in showering and water control valves, with a focus on design, innovation, and commitment to people for over 100 years |
447 |
| 14 |
Cheltenham Borough Councilcheltenham.gov.uk
Local government providing diverse services to residents across Cheltenham's 20 wards, supporting community well-being and local development. |
369 |
| 15 |
Spectrum Medical Ltdspectrummedical.com
Supplier of Clinical Information Solutions, Medical Device Connectivity Technologies, Electronic Medical Records, Telemedicine, Compliance Solutions, Patient Safety Solutions, and Non-invasive Diagnostics Systems |
361 |
| 16 |
Cheltenham Ladies'β Collegecheltladiescollege.org
Education focused on academic excellence, character formation, broad co-curricular activities, global outlook, and preparing girls for future challenges. |
339 |
| 17 |
Cheltenham Collegecheltenhamcollege.org
Established in 1841, this co-ed boarding and day school in the UK provides education to young people aged 3-18 |
338 |
| 18 |
Ultra PCSultra-pcs.com
The company provides engineering solutions for safety and mission critical challenges in military and civil aviation, unmanned vehicles, and soldier equipment |
270 |
| 19 |
Creed Foodservice Ltdcreedfoodservice.co.uk
A leading family-owned foodservice wholesaler in the UK, specializing in supplying a wide range of products and services to various sectors with a focus on customer and employee satisfaction |
231 |
| 20 |
Attivoattivo.co.uk
Independent lifestyle financial planners offering chartered financial planning and advice to corporate and private clients, prioritizing unbiased recommendations to help achieve life goals |
200 |
| 21 |
SOHO Coffeesohocoffee.com
An independent business serving conscious crafted coffee and handmade food, believing in unique, flavorful creations made with love and care |
197 |
| 22 |
Endsleighendsleigh.co.uk
Providing specialist landlord insurance solutions as part of the Howden group through a people first culture focused on delivering client results. |
194 |
| 23 |
Safehands Recruitment Ltdsafehandsrecruitment.co.uk
Specializing in healthcare recruitment, we connect skilled personnel with various healthcare settings to provide quality care and exceptional customer service |
181 |
| 24 | 173 | |
| 25 |
CDS Defence & Securitycdsds.uk
A technical consultancy enhancing operational effectiveness in the defence sector through support engineering, training, cyber security, information assurance, and digital forensics |
170 |
| 26 |
Originaloriginal.org.uk
Leading IT partner focusing on sustainable and innovative digital transformation solutions for enterprise organizations, aligning with the UN SDGs |
156 |
| 27 |
BPE Solicitors LLPbpe.co.uk
A commercial law firm in the South West offering clear advice and support to SMEs, corporations, and individuals, recognized for legal expertise |
154 |
| 28 |
Cotswold Motor Groupcotswoldgroup.com
A customer-focused automotive group specializing in delivering exceptional service and experiences for BMW owners, prioritizing relationships and personalized attention |
123 |
| 29 | 110 | |
| 30 |
Ripjarripjar.com
Provides financial crime compliance technology, including AML screening, adverse media monitoring, and threat investigation software to global organizations. |
104 |
| 31 |
First Source ITfirstsource.it
A reliable IT solutions provider with over 20 years of experience offering fast delivery, tailored support, and a wide range of services for businesses |
102 |
| 32 |
Monjon (Australia)monjon.com.au
Company with over 20 years experience providing security risk management solutions for residential, commercial, private, and government clients in Melbourne |
91 |
| 33 |
SMITHSsmithsofbourton.com
Specializing in gourmet burgers, this boutique restaurant located in the Cotswolds was founded by two passionate brothers in Bourton on the Water |
73 |
| 34 |
Simply Gym Ltdsimplygym.co.uk
Health and wellness company offering high quality gym facilities across the midlands at an affordable cost Dedicated to providing a great customer experience |
58 |
| 35 |
CoreTech Securitycoretech-security.com
A specialized cyber security company with a highly experienced team focused on delivering exceptional capabilities through vulnerability research and software development |
57 |
| 36 |
Legal and Medical Investmentslegalandmedical.co.uk
Specializing in financial advice and investment planning for medical and dental professionals, providing tailored solutions throughout their careers Independent and experienced advisers |
49 |
| 37 |
Just Go! Holidaysjustgoholidays.com
This company offers value UK and European coach holidays, tours, trips, and weekend breaks with free excursions and nationwide pickups |
47 |
| 38 |
SOZO | B Corp Certifiedsozodesign.co.uk
A digital marketing company specializing in web design, branding, and digital marketing, offering a unique blend of creative design and expert programming services |
46 |
| 39 |
No.131 The Promenadeno131.com
A boutique hotel in Cheltenham run by Jade and Julian Dunkerton, offering modern design, dining options, a sushi restaurant, and a popular late-night bar |
42 |
| 40 |
Prism Infosecprisminfosec.com
Specialists in enterprise cybersecurity offering consultancy, risk governance, technical assessments, red teaming, incident response, and managed security services. |
39 |
| 41 |
North Tower Consultingnorthtowerconsulting.co.uk
An expanding business providing tailored IT solutions, system development, service management, cybersecurity, and professional services to meet diverse business needs |
38 |
| 42 |
Rada Controlsradacontrols.com
A pioneering expert in water flow controls and washroom products, consistently innovating to protect users, reduce infections, and conserve resources |
36 |
| 43 |
Click Intelligence Ltdclickintelligence.co.uk
A search engine marketing agency combining technology, data-driven strategies, international marketing, and blogger outreach to help clients achieve success |
36 |
| 44 | 36 | |
| 45 |
Salus Cybersaluscyber.com
A provider of elite cyber security services in the UK and Europe, offering proactive risk management, penetration testing, compliance testing, and more |
35 |
| 46 |
&SONS Trading Co.andsons.co.uk
Creating timeless, vintage-inspired workwear clothing for modern pioneers, designed by artisans for durability and style, using finest materials and craftsmanship for individual expression |
34 |
| 47 |
Information Risk Management (IRM)irmsecurity.com
A cybersecurity company within Capgemini Group, providing consultancy, advanced technology, and support to defend organizations against cyber threats and ensure compliance |
31 |
| 48 |
PayItMonthlypayitmonthly.uk
A FinTech retail finance company offering interest-free loans, BuyNowPayLater options, and flexible payment solutions for retailers and service providers |
30 |
| 49 |
Switch Healthswitchhealth.co.uk
A company specializing in providing personalized advice to match customers with the best-value health and life insurance policies tailored to their needs |
28 |
| 50 |
Blacksmiths Groupblacksmithsgroup.com
A security risk consultancy specializing in managing insider risk, threats, and cyber security, with expertise gained from UK government and industry |
25 |
| 51 |
Utility Discountutility.discount
The company specializes in facilitating fast and simple energy switching services for residential customers throughout the UK |
24 |
| 52 |
HERA Clothingheraclothing.com
An eCommerce fashion brand based in the UK, known for iconic skinny jeans and oversized t-shirts, aiming for significant growth and brand equity |
24 |
| 53 |
Beardsbeards.co.uk
A prestigious jeweller in the UK since 1804, offering exquisite jewellery, luxury watches, bespoke commissions, repairs, and valuations with exceptional craftsmanship and service |
23 |
| 54 |
Person Centred Careperson-centred-care.co.uk
Affordable and flexible home care services providing personal care, support, and companionship to help individuals maintain independence and ease the burden of caregiving |
23 |
| 55 |
AMR CyberSecurityamrcybersecurity.com
AMR CyberSecurity offers next-generation cyber security services to help organizations understand and counter potential threats, while ensuring compliance with legal requirements |
23 |
| 56 |
CyberWhiz IoT Cyber Securitycyberwhiz.co.uk
Development of AI-driven IoT cybersecurity solutions across edge, mobile, and cloud domains ensuring device protection and regulatory compliance. |
22 |
| 57 |
Hexiosechexiosec.com
This company provides cybersecurity products and services, including attack surface management, secure file sharing, infrastructure building, and technical testing for digital assets. |
21 |
| 58 |
The Cyber Schemethecyberscheme.org
Provides NCSC certified assessments and training for security testers, cyber security development for businesses, and supports new talent with training and exams |
21 |
| 59 |
Attivo Financial Planningattivofinancialplanning.co.uk
Independent financial planning and pension specialist company with Chartered status, focusing on investments, retirement, tax, estate planning for individuals and businesses Offices in Cheltenham, London, and Cardiff |
20 |
| 60 |
Fibre Marketingfibre.marketing
Specializing in organic SEO services, we help businesses boost website traffic and conversions through deep analysis and bespoke consultancy |
19 |
| 61 |
Emerge Digital | B Corpβ’emerge.digital
Leading provider of award-winning IT support, cyber security, and digital transformation services, ensuring desired business outcomes with accredited expertise and round-the-clock support |
19 |
| 62 |
B10SECb10sec.com
Specializing in cybersecurity and data protection services, this company with locations in the UK, Portugal, and Brazil helps organizations tackle security challenges globally |
18 |
| 63 |
DoubleTree by Hilton Cheltenham-Cotswoldshilton.com
Luxury hotel near Cheltenham offering accommodation for visitors attending festivals, exploring the Cotswolds, or enjoying the regency charm of the town |
16 |
| 64 | 16 | |
| 65 |
Factor 3 Communications Ltdfactor3.co.uk
An independent, fully-integrated advertising, branding, design, and digital agency focused on creativity, service, and delivery to provide enjoyable success |
15 |
| 66 |
Bellwood Prestburybellwoodprestbury.com
Global insurance specialists providing cover for organizations in high-risk industries and regions, offering expertise in areas such as Kidnap and Ransom, International Life Insurance, and Defense Base Act Insurance |
15 |
| 67 |
Volo Commercevolocommerce.com
Ecommerce platform offering reporting services to help sellers increase sales on various marketplaces and web stores like Amazon, eBay, Shopify |
13 |
| 68 |
CORVID β Intelligent Cyber Defencecorvid.co.uk
The company provides advanced and discreet IT security services, offering monitoring, intelligence, protection, and remediation to help organizations defend against cyber threats |
12 |
| 69 |
Formal Investmentsformalinvestments.com
A private investment and asset management firm with a strong history of successful investments and real estate development projects |
12 |
| 70 |
IPPEX Global Limitedippexglobal.com
Global payroll and payments software solution provider, simplifying cross-border operations with innovative technology, trusted by 300+ international clients worldwide |
10 |
| 71 |
Martin & Co Cheltenhammartin-and-co.com
Established over 200 years ago, a leading jeweller in Cheltenham offering a wide range of luxury jewellery, including watches from top brands |
10 |
| 72 |
The Office Coffee Companyoffice-coffee.co.uk
The Office Coffee Company provides bean-to-cup machines for offices, offering fast installation and servicing to keep staff alert and productive |
10 |
| 73 |
Cheltenham Independent Financial Advisers Ltdcheltenhamifa.co.uk
Offering comprehensive financial planning guidance, including investments, pensions, inheritance tax, and long-term care planning, with a focus on independent advice |
10 |
| 74 |
Cirrus Software Solutionscirrussoftwaresolutions.com
Specializing in secure software and systems engineering, transitioning to Cloud services for the UK government Experienced in modern practices and cloud technologies |
10 |
| 75 |
QUESTLINEquestlineglobal.com
Specializing in coaching, facilitation, and leadership partnerships, our company offers experiential learning programs to drive personal and organizational development and transformation |
9 |
| 76 |
JLUXEjluxefit.com
Promoting inclusivity and positivity, supporting women to feel confident while exercising with activewear that offers support, comfort, and confidence |
9 |
| 77 |
Keynote Coffee Ltd
Specializing in trading sustainably sourced Specialty, High Commercial, and Certified coffees under a larger parent company, ECOM Agroindustrial |
7 |
| 78 |
Qing Cables Ltdqingcables.com
Supplier of high-quality communication cables, data cables, audio visual cables, and bespoke cabling services with fast delivery options and excellent customer service |
6 |
| 79 |
CyberFishthecyberfish.com
The company specializes in enhancing crisis management teams for businesses and government organizations to improve readiness and resilience during disruptions |
5 |
| 80 |
Andrew Scott Designer Jewelleryandrewscottjewellery.co.uk
Established in 1987, this company offers contemporary jewelry sourced from artisan jewellers worldwide, specializing in unique designs using high-quality precious metals and gemstones |
4 |
| 81 |
Portfolio Sportportfoliosport.com
A company passionate about sport, helping athletes maximize potential and create value for brands through personalized services and strategic campaigns |
4 |
| 82 |
justalittlebit.co.uk Ltdjustalittlebit.co.uk
This company provides a range of products and services that add a touch of fun to running experiences |
3 |
| 83 |
invinsecknogin.com
It provides advanced cyber security tools designed to detect and prevent cyber attacks, ensuring robust protection for network infrastructures. |
2 |
Turn this list into pipeline
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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 Oct 24, 2026.
The same list elsewhere in United Kingdom
- The largest companies in the United Kingdom 30,833
- The largest companies in England 27,553
- The largest companies in Scotland 1,331
- The largest companies in Wales 473
- The largest companies in Northern Ireland 297
- The largest companies in London 11,154
- The largest companies in Manchester 717
- The largest companies in Birmingham 410
- The largest companies in Leeds 393
- The largest companies in Edinburgh 380
- The largest companies in Glasgow 346
- The largest companies in Cambridge 235
- The largest companies in Nottingham 214
- The largest companies in Liverpool 210
- The largest companies in Bristol 198
- The largest companies in Newcastle upon Tyne 184
- The largest companies in Milton Keynes 181
- The largest companies in Leicester 180
- The largest companies in Sheffield 180
- The largest companies in Reading 169
- The largest companies in Oxford 167
- The largest companies in Cardiff 154
- The largest companies in Coventry 143
- The largest companies in Belfast 137