# Critical infrastructure operators headquartered in Birmingham

Tamtam tracks 27 critical infrastructure operators headquartered in Birmingham. This list ranks all of them by number of employees on LinkedIn, led by National Highways, University Hospitals Birmingham NHS Foundation Trust and HS2 (High Speed Two) Ltd. Their median headcount is 576. Half of them were founded in 2006 or later.

These companies are critical infrastructure operators in Birmingham, primarily large organizations. They include several major healthcare providers such as University Hospitals Birmingham NHS Foundation Trust, offering comprehensive medical care, and Birmingham Women's and Children's Hospital and Charity, specializing in women's and pediatric healthcare. Transport infrastructure is also prominent, with National Highways managing motorways and main A roads, and HS2 (High Speed Two) Ltd developing a large rail infrastructure project.

A significant pattern is the strong presence of the healthcare sector, with numerous NHS trusts providing diverse services from general medical care to mental health and specialized orthopedics. Another notable aspect is the concentration of transport-related entities, covering road, rail, and air, all headquartered in Birmingham.

🇬🇧 Birmingham · 27 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [National Highways](https://www.tamtam.ai/c/national-highways) (nationalhighways.co.uk)<br>Government company managing, maintaining, and modernising motorways and main A roads to ensure smooth traffic flow nationwide. | Civil Engineering | 🇬🇧 Birmingham | 5,889 | 2015 |
| 2 | [University Hospitals Birmingham NHS Foundation Trust](https://www.tamtam.ai/c/university-hospitals-birmingham-nhs-foundation-trust) (uhb.nhs.uk)<br>Operates large teaching hospitals, providing comprehensive medical care, specialist treatments, and trauma services for millions regionally and internationally, with a focus on staff development. | Hospitals and Health Care | 🇬🇧 Birmingham | 5,525 |  |
| 3 | [HS2 (High Speed Two) Ltd](https://www.tamtam.ai/c/hs2-high-speed-two-ltd) (hs2.org.uk)<br>Development and management of the UK’s largest rail infrastructure project focused on improving transport connectivity and economic growth in Northern England. | Truck Transportation | 🇬🇧 Birmingham | 2,692 | 2009 |
| 4 | [Birmingham Women's and Children's Hospital and Charity](https://www.tamtam.ai/c/birmingham-women-s-and-children-s-hospital-and-charity) (bwc.nhs.uk)<br>A global leader in women's and pediatric healthcare, specializing in advanced treatments, complex surgeries, and innovative research and development Visit website for more information | Hospitals and Health Care | 🇬🇧 Birmingham | 2,457 |  |
| 5 | [Sandwell & West Birmingham NHS Trust](https://www.tamtam.ai/c/sandwell-and-west-birmingham-nhs-trust) (swbh.nhs.uk)<br>Integrated care organisation dedicated to improving lives, maintaining reputation for teaching, embedding innovation and research for 530,000 people in Birmingham and Sandwell | Hospitals and Health Care | 🇬🇧 Birmingham | 2,330 | 2002 |
| 6 | [National Express LTD](https://www.tamtam.ai/c/national-express-ltd) (nationalexpress.com)<br>A leading UK coach operator providing safe, environmentally friendly travel options to millions of passengers, with a focus on quality service and safety | Travel Arrangements | 🇬🇧 Birmingham | 1,865 | 1972 |
| 7 | [Birmingham and Solihull Mental Health NHS Foundation Trust](https://www.tamtam.ai/c/birmingham-and-solihull-mental-health-nhs-foundation-trust) (bsmhft.nhs.uk)<br>A leading mental health foundation trust providing a wide range of services to over 71,000 individuals in Birmingham, Solihull, and the West Midlands | Mental Health Care | 🇬🇧 Birmingham | 1,770 |  |
| 8 | [Birmingham Community Healthcare NHS Foundation Trust](https://www.tamtam.ai/c/birmingham-community-healthcare-nhs-foundation-trust) (bhamcommunity.nhs.uk)<br>Provision of over 130 clinical services including home care, specialist rehabilitation, dental care, and learning disability support across Birmingham and West Midlands. | Hospitals and Health Care | 🇬🇧 Birmingham | 1,547 |  |
| 9 | [Heart of England NHS Foundation Trust](https://www.tamtam.ai/c/heart-of-england-nhs-foundation-trust) (nhs.uk)<br>Leading Hospital Trust in England with a focus on tackling MRSA and treating a wide range of illnesses from heart disease to premature baby care | Hospitals and Health Care | 🇬🇧 Birmingham | 1,424 |  |
| 10 | [West Midlands Fire Service](https://www.tamtam.ai/c/west-midlands-fire-service) (wmfs.net)<br>The company provides emergency response, prevention, and protection services for homes and businesses in the West Midlands, being the second largest in the country | Public Safety | 🇬🇧 Birmingham | 1,008 | 1974 |
| 11 | [WM Trains Limited](https://www.tamtam.ai/c/wm-trains-limited) (westmidlandsrailway.co.uk)<br>Operating two new railway brands in the Midlands, North West, and London, offering local services and direct trains to surrounding towns and cities | Rail Transportation | 🇬🇧 Birmingham | 902 | 2017 |
| 12 | [Freightliner Ltd](https://www.tamtam.ai/c/freightliner-ltd) (freightliner.co.uk)<br>providing sustainable, efficient intermodal and bulk freight transportation, storage, and delivery services with a focus on safety and reliability | Rail Transportation | 🇬🇧 Birmingham | 823 | 1965 |
| 13 | [Birmingham Airport](https://www.tamtam.ai/c/birmingham-airport) (birminghamairport.co.uk)<br>Regional airport handling millions of passengers annually, offering extensive direct and connecting flights with significant infrastructure investment. | Airlines and Aviation | 🇬🇧 Birmingham | 682 |  |
| 14 | [CrossCountry Trains](https://www.tamtam.ai/c/crosscountry-trains) (crosscountrytrains.co.uk)<br>CrossCountry operates extensive long distance train services across Britain, offering fast and frequent journeys with at-seat catering, quiet zones, and First Class options | Truck Transportation | 🇬🇧 Birmingham | 576 | 2007 |
| 15 | [The Royal Orthopaedic Hospital NHS Foundation Trust](https://www.tamtam.ai/c/the-royal-orthopaedic-hospital-nhs-foundation-trust) (roh.nhs.uk)<br>Specialist orthopaedic unit offering innovative care, surgical techniques, and treatment for bone and joint disorders, supported by a dedicated charity | Hospitals and Health Care | 🇬🇧 Birmingham | 550 |  |
| 16 | [Modality Partnership](https://www.tamtam.ai/c/modality-partnership) (modalitypartnership.nhs.uk)<br>A UK-based GP super-partnership focusing on improving healthcare provision by combining small practice advantages with larger scale opportunities | Hospitals and Health Care | 🇬🇧 Birmingham | 466 | 2009 |
| 17 | [Enerveo](https://www.tamtam.ai/c/enerveo) (enerveo.com)<br>A multi-disciplinary contracting business delivering complex projects in critical infrastructure, committed to safety, innovation, and supporting society towards Net Zero | Construction | 🇬🇧 Birmingham | 426 |  |
| 18 | [NHS Birmingham and Solihull and NHS Black Country](https://www.tamtam.ai/c/nhs-birmingham-and-solihull-and-nhs-black-country) (birminghamsolihull.icb.nhs.uk)<br>A statutory NHS organization responsible for developing a plan and managing the budget for healthcare services in the Birmingham and Solihull area | Hospitals and Health Care | 🇬🇧 Birmingham | 306 | 2018 |
| 19 | [Unity Trust Bank](https://www.tamtam.ai/c/unity-trust-bank) (unity.co.uk)<br>Independent commercial bank supporting UK communities with ethical banking services including current accounts, savings, and loans for social impact. | Banking | 🇬🇧 Birmingham | 288 | 1984 |
| 20 | [National Express Bus](https://www.tamtam.ai/c/national-express-bus) (nxbus.co.uk)<br>We are a leading bus operator in the West Midlands, offering frequent and reliable services for business, personal, and leisure travel | Travel Arrangements | 🇬🇧 Birmingham | 240 | 1986 |
| 21 | [HealthHarmonie](https://www.tamtam.ai/c/healthharmonie) (healthharmonie.com)<br>Specialist healthcare provider in the UK offering non-elective care services, supporting the NHS with innovative solutions focused on patient safety and satisfaction | Hospitals and Health Care | 🇬🇧 Birmingham | 219 | 2003 |
| 22 | [Birmingham Women's Hospital](https://www.tamtam.ai/c/birmingham-women-s-hospital) (bwc.nhs.uk)<br>Specialist centre providing gynaecological, maternity, and neonatal care, including fertility services, research, education, and the largest genetics laboratory in Europe | Wellness and Fitness Services | 🇬🇧 Birmingham | 191 |  |
| 23 | [Birmingham Bank](https://www.tamtam.ai/c/birmingham-bank) (birminghambank.com)<br>Since 1955, we have been dedicated to empowering customers and stakeholders with trusted savings and lending products, focused on practical solutions and ambition | Banking | 🇬🇧 Birmingham | 73 |  |
| 24 | [Diamond Bus Midlands](https://www.tamtam.ai/c/diamond-bus-midlands) (diamondbuses.com)<br>A bus company providing high-quality services in the West Midlands and surrounding areas | Truck Transportation | 🇬🇧 Birmingham | 56 | 2006 |
| 25 | [BDA Logistics Innovation](https://www.tamtam.ai/c/bda-logistics-innovation) (bdaviation.com)<br>BDA Logistics Innovation offers urgent and time critical delivery solutions across Europe, specializing in hi-tech, medical equipment, machinery, and e-commerce industries with 24/7 client support | Transportation, Logistics, Supply Chain and Storage | 🇬🇧 Birmingham | 46 | 2007 |
| 26 | [Vintage Trains](https://www.tamtam.ai/c/vintage-trains) (vintagetrains.co.uk)<br>Vintage Trains operates express steam trains on Britain's mainline railway, providing nostalgic journeys through picturesque countryside in beautifully restored carriages | Rail Transportation | 🇬🇧 Birmingham | 16 |  |
| 27 | [Veolia Transport UK](https://www.tamtam.ai/c/veolia-transport-uk) (veolia.co.uk)<br>A UK transport operator running bus and coach services in South Wales, the Midlands, and North East England with over 1,200 employees and 550 vehicles | Truck Transportation | 🇬🇧 Birmingham | 15 |  |

## 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 Birmingham

- [The largest companies in Birmingham](https://www.tamtam.ai/l/largest-companies-birmingham) (503)
- [Multinational companies in Birmingham](https://www.tamtam.ai/l/multinational-companies-birmingham) (78)
- [Retail chains in Birmingham](https://www.tamtam.ai/l/retail-chains-birmingham) (49)
- [Professional services firms in Birmingham](https://www.tamtam.ai/l/professional-services-firms-birmingham) (37)
- [SaaS companies in Birmingham](https://www.tamtam.ai/l/saas-companies-birmingham) (33)
- [Software Development companies in Birmingham](https://www.tamtam.ai/l/software-development-companies-birmingham) (31)
- [Manufacturers in Birmingham](https://www.tamtam.ai/l/manufacturers-birmingham) (28)
- [Hotel and hospitality groups in Birmingham](https://www.tamtam.ai/l/hospitality-groups-birmingham) (27)
- [Hardware manufacturers in Birmingham](https://www.tamtam.ai/l/hardware-companies-birmingham) (25)
- [IT services companies in Birmingham](https://www.tamtam.ai/l/it-services-companies-birmingham) (25)

## The same list elsewhere in United Kingdom

- [Critical infrastructure operators in the United Kingdom](https://www.tamtam.ai/l/critical-infrastructure-operators-united-kingdom) (1,195)
- [Critical infrastructure operators in England](https://www.tamtam.ai/l/critical-infrastructure-operators-england) (1,029)
- [Critical infrastructure operators in Scotland](https://www.tamtam.ai/l/critical-infrastructure-operators-scotland) (70)
- [Critical infrastructure operators in London](https://www.tamtam.ai/l/critical-infrastructure-operators-london) (359)
- [Critical infrastructure operators in Manchester](https://www.tamtam.ai/l/critical-infrastructure-operators-manchester) (29)

---

Source: https://www.tamtam.ai/l/critical-infrastructure-operators-birmingham