Companies in Cardiff

Behind every street in Cardiff sits a business. 38,226 of them, to be exact, all registered in the United Kingdom business register. The biggest single industry is e-commerce and mail-order retail with 3,530 companies, roughly 9% of everything that does business in the city.

38,226 businesses indexed

Admiral Group PLCAdmiral Group PLC
Showing 25 of 38,226 companies
Company NameCountryCityAddress 1State/ProvincePostal CodeWebsiteFounding YearYearly Revenue in U.S. DollarsEmployees TotalBusiness Legal Type - DescriptionNumber of Companies in GroupCompany Registration Number
1
Admiral Group PLC
Unitedkingdom
Cardiff
Ty Admiral
Cardiff
CF10 2EH
admirallaw.*****
1993
$6,585,512,635
14,998
Corporation
20
03849958
2
05094817 LTD
Unitedkingdom
Cardiff
C/o 05094817 - Companies House Default Address
Cardiff
CF14 8LH
N/A
2004
$1,302,791,791
9
Corporation
N/A
05094817
3
Cardiff University
Unitedkingdom
Cardiff
Cardiff University
Cardiff
CF10 3AT
facebook.*****
2010
$865,798,149
6,092
Corporation
31
RC000089
4
Cardiff County Council
Unitedkingdom
Cardiff
County Hall
Cardiff
CF10 4UW
cardiff.*****
1996
$796,070,181
545
363
N/A
5
Principality Building Society
Unitedkingdom
Cardiff
Principality Building Soc Principality House
Cardiff
CF10 3FA
principality.*****
1860
$721,810,509
1,228
Non profit organization
68
155998
6
Storm Software PLC
Unitedkingdom
Cardiff
C/o 09509359 - Companies House Default Address
Cardiff
CF14 8LH
aimsoftware.*****
2016
$564,167,338
1,033
Corporation
N/A
09509359
7
Bbc Pension Trust LIMITED
Unitedkingdom
Cardiff
Broadcasting House
Cardiff
CF5 2YQ
bbc.*****
1988
$491,274,777
6,000
Corporation
335
02218202
8
Motonovo Finance LIMITED
Unitedkingdom
Cardiff
Central Square
Cardiff
CF10 1FS
motonovofinance.*****
2018
$459,146,478
628
Corporation
82
11556144
9
Eui LIMITED
Unitedkingdom
Cardiff
Ty Admiral
Cardiff
CF10 2EH
elephant.*****
1992
$447,190,038
11,191
Corporation
20
02686904
10
Jarvis Rail LIMITED
Unitedkingdom
Cardiff
C/o 02995419 - Companies House Default Address
Cardiff
CF14 8LH
N/A
1994
$372,229,462
1,381
Corporation
N/A
02995419
11
Admiral Insurance Company LIMITED
Unitedkingdom
Cardiff
Ty Admiral
Cardiff
CF10 2EH
admiral.*****
2000
$341,230,838
920
Corporation
20
04080051
12
Pepper Money Group LIMITED
Unitedkingdom
Cardiff
4 Capital Quarter
Cardiff
CF10 4BZ
pepper.*****
2018
$335,950,942
341
Corporation
8
11279067
13
UK Mortgage Lending LTD
Unitedkingdom
Cardiff
4 Capital Quarter
Cardiff
CF10 4BZ
optimumcredit.*****
2013
$280,551,971
151
Corporation
8
08698121
14
Gocompare.com LIMITED
Unitedkingdom
Cardiff
Suite 2a Hodge House
Cardiff
CF10 1DY
gocompare.*****
2006
$258,855,390
244
Corporation
55
05799376
15
Inspop.com LIMITED
Unitedkingdom
Cardiff
Greyfriars House
Cardiff
CF10 3AL
confused.*****
1999
$218,749,938
318
Corporation
46
03857130
16
Carlyle Trust Limited(the)
Unitedkingdom
Cardiff
One, Central Square
Cardiff
CF10 1FS
N/A
1940
$197,313,128
289
Corporation
10
00361131
17
Oriana Solutions LTD
Unitedkingdom
Cardiff
C/o 11458762 - Companies House Default Address
Cardiff
CF14 8LH
N/A
2018
$181,331,474
56
Corporation
N/A
11458762
18
Julian Hodge Bank LIMITED
Unitedkingdom
Cardiff
Hodge
Cardiff
CF10 1FS
hodgebank.*****
1977
$168,026,570
302
Corporation
10
00743437
19
Eagle Football Holdings LIMITED
Unitedkingdom
Cardiff
C/o 14379286 - Companies House Default Address
Cardiff
CF14 8LH
N/A
2022
$160,838,000
1,026
Corporation
3
14379286
20
Royal Mail Sameday
Unitedkingdom
Cardiff
Po Box 4219
Cardiff
CF14 8DH
N/A
2001
$155,478,084
400
N/A
N/A
21
Government Of Wales
Unitedkingdom
Cardiff
Crown Building
Cardiff
CF10 3NQ
gov.*****
2012
$148,788,473
5,000
231
1020356
22
The Welsh Rugby Union LIMITED
Unitedkingdom
Cardiff
Principality Stadium
Cardiff
CF10 1NS
wru.*****
1897
$143,915,632
344
Corporation
8
03419514
23
Deep Black Drilling Llp
Unitedkingdom
Cardiff
C/o 360402 - Companies House Default Address
Cardiff
CF14 8LH
N/A
2010
$142,680,775
2
Partnership of unknown type
N/A
OC360402
24
00815217 LIMITED
Unitedkingdom
Cardiff
C/o 00815217 - Companies House Default Address
Cardiff
CF14 8LH
N/A
1964
$138,088,133
683
Corporation
N/A
00815217
25
Admiral Financial Services LIMITED
Unitedkingdom
Cardiff
Ty Admiral
Cardiff
CF10 2EH
admirallaw.*****
2016
$137,120,091
295
Corporation
20
10255225

Showing 25 of 38,226 companies

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Largest companies in Cardiff

Which company is the largest in Cardiff depends on how you measure. You can look at valuation, at revenue or at how many people work there. Valuations are private for most companies, so here we stick to revenue and headcount.

By revenue, Admiral Group PLC comes first in Cardiff. It is part of a group with $6.6 billion in yearly revenue. By headcount, Eui LIMITED comes first with 11,191 employees. We only looked at the 33,798 corporations in Cardiff for this; sole traders, foundations and other legal forms are left out.

The two tables below show how all 38,226 companies in Cardiff are spread across revenue and headcount bands.

Yearly revenue

60.1%of companies have less than $100,000 in yearly revenue

Revenue (USD)CountShare
up to $100,00022,957
$100,000 to $500,0009,290
$500,000 to $1M1,191
$1M to $5M1,058
$5M to $10M186
$10M to $50M214
$50M to $100M38
$100M to $500M29
$500M to $1B4
$1B or more2
Unknown3,257

Headcount

83.4%of companies have 1 to 4 employees

EmployeesCountShare
1-431,863
5-91,782
10-19788
20-49441
50-99147
100-19983
200-49952
500-99920
1,000-4,99912
5,000-9,9992
10,000+1
Unknown3,035

Source: business register and CompanyData. "Unknown" means no published figure.

Largest industries in Cardiff

The biggest industry groups in Cardiff by registered company count, with the top five companies by revenue in each.

E-commerce and mail-order retail

3,530 companies

SIC 5961

View all 3,530 in our tool →

General business services

2,184 companies

SIC 7389

View all 2,184 in our tool →

IT services

1,564 companies

SIC 7379

View all 1,564 in our tool →

Restaurants and eating places

1,319 companies

SIC 5812

View all 1,319 in our tool →

Management consulting

1,183 companies

SIC 8742

View all 1,183 in our tool →

Property developers

1,151 companies

SIC 6552

View all 1,151 in our tool →

Miscellaneous Personal Services, Not Elsewhere Classified

1,113 companies

SIC 7299

View all 1,113 in our tool →

Computer Programming Services

987 companies

SIC 7371

View all 987 in our tool →

All industries in Cardiff

Together, e-commerce and mail-order retail, general business services and IT services make up the top three industries in Cardiff, accounting for 19% of the city's commercial activity. The oldest company we can find in Cardiff is Morgan Cole Llp, founded in 1836, with 00524665 not far behind. They are still here, along with 38,224 other businesses in Cardiff.

Coal from the valleys once made Cardiff's docks among the busiest on earth, and the Welsh capital now trades in media, finance and government instead. All of them are in our data. Look up a company in the table at the top of this page, get the full list delivered as an Excel file, or pull the records straight into your own systems through our API.

38,226companies
  • Catalog and Mail-Order Houses3,530
  • Nonclassifiable Establishments2,502
  • Business Services, Not Elsewhere Classified2,184
  • Computer Related Services, Not Elsewhere Classified1,564
  • Eating Places1,319
  • Management Consulting Services1,183
  • Land Subdividers and Developers, Except Cemeteries1,151
  • Miscellaneous Personal Services, Not Elsewhere Classified1,113
  • Computer Programming Services987
  • Nondurable Goods, Not Elsewhere Classified839
  • Other industries21,854

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<p>Source: <a href="https://companydata.com/uk/cardiff/">Companies in Cardiff</a> by CompanyData</p>

How you receive Cardiff business data

Choose how you want to receive the data. Every company comes with 50+ fields, from address and industry to revenue and contact details, sourced from official United Kingdom business registers.

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Custom-built Cardiff directory in Excel or CSV. Filter by industry, employee size, or revenue. Delivered within 24 hours.

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Search Cardiff companies in our online tool with filters for industry, size, revenue and SIC code. Export your selection.

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Frequently Asked Questions

Common questions about searching, filtering, and ordering Cardiff company data.

Our Cardiff business directory currently lists every registered legal entity with a Cardiff address in the official United Kingdom business register. The exact count is shown live at the top of this page.
Cardiff records are sourced directly from the official United Kingdom business register and enriched with 50+ data points: revenue, employees, industry codes, contact details, and ownership.
Core registry fields are refreshed weekly. Enriched fields (revenue, employees, contact) are refreshed monthly so your Cardiff list never goes stale.
Yes. Every Cardiff record is tagged with SIC industry codes. You can request your directory filtered by one or several SIC codes, employee size bands, or revenue thresholds.
Excel (.xlsx), CSV, and JSON. For API customers, data is streamed as paginated JSON. Custom formats (Parquet, SQL dump) are available on request.
Yes. We only deliver legal-entity data and publicly listed business contact details. We do not include personal data of natural persons unless required by the company register itself (e.g. sole traders).
Yes. Request a free 100-record sample of Cardiff data and we will email it within one business day.
Yes. The full Cardiff dataset is available through our REST API with the same filters as our directory builder. See our API page for pricing tiers.
Standard Excel and CSV directories are delivered within 24 hours. API access is provisioned within one business day. Rush delivery (same-day) is available on request.
Snapshot data going back 3 years is available for most fields, and 7+ years for core registry fields. Useful for trend analysis and churn studies - ask for a custom quote.

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