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COMPANIES USING

Companies Using C# in United Kingdom

688 companies are hiring C# talent in United Kingdom.

C# is Microsoft's primary language for building enterprise applications, backend services, and Windows-native software. When companies hire C# developers in volume, they're typically mid-build on a platform modernisation, a new internal tool, or a customer-facing product that needs serious backend infrastructure. That build cycle creates immediate demand for adjacent services: cloud hosting, DevOps tooling, testing platforms, and API integration layers.

Buying Signal

A company actively recruiting C# engineers is either scaling an existing .NET application or kicking off a net-new development project — both of which require vendor decisions within 3-6 months. Think Azure infrastructure, CI/CD tooling, database licensing, and monitoring platforms. DevOps vendors, cloud resellers, and enterprise software integrators should be prospecting these accounts now, before the build locks in.

Top Companies46 shown

CompanyIndustryHQ LocationSizeJobsLinks
Capco
capco.com
 Financial Services Greater London, United Kingdom 5,001+ 1,037
ERM
erm.com
 Business Consulting and Services City of London, United Kingdom 5,001+ 1,364
RWS Group
rws.com
 Business Content Maidenhead, United Kingdom 5,001+ 502
Aggreko
aggreko.com
 Utilities Dumbarton, United Kingdom 5,001+ 576
Wren Kitchens
wrenkitchens.com
 Furniture and Home Furnishings Manufacturing Barton-upon-Humber, United Kingdom 5,001+ 523
Element Materials Technology
element.com
 Manufacturing Greater London, United Kingdom 5,001+ 530
Qualitest
qualitestgroup.com
 IT Services and IT Consulting City of London, United Kingdom 5,001+ 500
Selby Jennings
selbyjennings.com
 Professional Services City of London, United Kingdom 1,001–5,000 1,075
RSM UK
rsmuk.com
 Accounting Greater London, United Kingdom 1,001–5,000 847
SThree
sthree.com
 Business Consulting and Services City of London, United Kingdom 1,001–5,000 386
Agincare
agincare.com
 Hospitals and Health Care United Kingdom 1,001–5,000 336
Computer Futures
computerfutures.com
 IT Services and IT Consulting Greater London, United Kingdom 501–1,000 503
hackajob
hackajob.com
 Software Development Greater London, United Kingdom 51–200 1,389
targetjobs UK
targetjobs.co.uk
 Technology, Information and Internet Greater London, United Kingdom 51–200 1,727
Smart Working
smartworking.io
 IT Services and IT Consulting Greater London, United Kingdom 51–200 718
Haystack
haystackapp.io
 Technology, Information and Internet Newcastle upon Tyne, United Kingdom 51–200 605
myGwork - LGBTQ+ Business Community
mygwork.com
 Technology, Information and Internet Greater London, United Kingdom 11–50 1,933
HSBC
hsbc.com
 Financial Services Greater London, United Kingdom 10,001+ 1,775
EY
ey.com
 Professional Services Greater London, United Kingdom 10,001+ 1,635
Arup
arup.com
 Design Services Greater London, United Kingdom 10,001+ 1,668
Tesco
tescoplc.com
 Retail Welwyn Hatfield, United Kingdom 10,001+ 1,426
Pearson
pearson.com
 Education City of Westminster, United Kingdom 10,001+ 1,733
AstraZeneca
astrazeneca.com
 Pharmaceutical Manufacturing Cambridge, United Kingdom 10,001+ 1,738
Barclays
home.barclays
 Financial Services Greater London, United Kingdom 10,001+ 1,711
G4S
g4s.com
 Security and Investigations Greater London, United Kingdom 10,001+ 1,438
Aon
aon.com
 Financial Services City of London, United Kingdom 10,001+ 1,641
Turner & Townsend
turnerandtownsend.com
 Construction Leeds, United Kingdom 10,001+ 1,633
Serco
serco.com
 IT Services and IT Consulting Hart, United Kingdom 10,001+ 1,436
Wood
woodgroup.com
 Professional Services Aberdeen City, United Kingdom 10,001+ 1,513
Boots UK
boots.jobs
 Retail Nottingham, United Kingdom 10,001+ 1,393
WTW
wtwco.com
 Financial Services City of London, United Kingdom 10,001+ 1,313
Next
next.co.uk
 Retail Leicester, United Kingdom 10,001+ 1,001
Computacenter
computacenter.com
 Information Technology & Services Welwyn Hatfield, United Kingdom 10,001+ 1,200
Rolls-Royce
rolls-royce.com
 Industrial Machinery Manufacturing Greater London, United Kingdom 10,001+ 960
Vodafone
vodafone.com
 Telecommunications Greater London, United Kingdom 10,001+ 1,317
bp
bp.com
 Oil and Gas Greater London, United Kingdom 10,001+ 807
PwC
pwc.com
 Professional Services City of Westminster, United Kingdom 10,001+ 995
Halfords
halfords.com
 Retail Redditch, United Kingdom 10,001+ 652
Iceland Foods
icelandcareers.co.uk
 Retail Connah's Quay, United Kingdom 10,001+ 654
BAE Systems
baesystems.com
 Defense and Space Manufacturing Greater London, United Kingdom 10,001+ 891
Frasers Group
frasers.group
 Retail Greater London, United Kingdom 10,001+ 702
Lloyds Banking Group
lloydsbankinggroup.com
 Financial Services Greater London, United Kingdom 10,001+ 630
NatWest Group
natwestgroup.com
 Banking City of Edinburgh, United Kingdom 10,001+ 489
Endava
endava.com
 IT Services and IT Consulting Greater London, United Kingdom 10,001+ 512
Rio Tinto
riotinto.com
 Mining City of London, United Kingdom 10,001+ 378
Babcock International Group
babcockinternational.com
 Defense and Space Manufacturing City of Westminster, United Kingdom 10,001+ 436

688 companies use C#. Want the full list?

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Companies with open C# roles in United Kingdom. Company HQ may be in a different location.

Market Signal

With 777 companies across the UK posting over 54,000 roles tied to C#, this isn't a niche signal — it reflects the continued dominance of the Microsoft stack in UK enterprise and financial services. That volume means competition is high, but so is the density of active buying cycles.

Stack Intelligence

Companies hiring for C# almost always co-hire for .NET, Azure, and SQL Server — a combination that points to a mature, Microsoft-aligned stack running production workloads. For sales teams, this cluster is a targeting shortcut: it identifies accounts already invested in Microsoft licensing, likely with Azure spend and an appetite for complementary tooling like security, observability, or data integration platforms.

Hiring Landscape

C# in the Market

Where and how companies hire C# talent

By Industry

IT Services and IT Consulting
139
Software Development
99
Financial Services
90
Information Technology & Services
32
Business Consulting and Services
31
Technology, Information and Internet
26
Computer Games
23
Insurance
18

Top Roles

Software Engineer306Project Manager226Data Engineer207Product Manager186Business Analyst178Business Development Manager131Account Manager126Data Scientist125Devops Engineer124Software Developer115Data Analyst101Full Stack Engineer94

Related Technologies

.NETSQL Server
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Frequently Asked Questions

What is C#?

C# is the core programming language behind most enterprise Microsoft applications, from internal business systems to financial platforms and SaaS products. Businesses hiring for it are building or maintaining software at scale. That hiring activity is a reliable signal that infrastructure and tooling decisions are in motion.

Why should sales teams track C# hiring?

C# hiring often precedes procurement decisions for cloud, data, and DevOps tools by weeks or months. An SDR who spots a UK financial services firm posting 10+ C# roles has an opening to engage before budget is allocated.

Who should be selling to companies that use C#?

Cloud infrastructure vendors (especially Azure partners), DevOps and CI/CD platforms, database and data integration tools, and enterprise security or monitoring providers are best positioned to sell into companies actively hiring C# talent.