Companies in Reading

Q: How many companies are in Reading?

Our Reading business directory currently lists every registered legal entity with a Reading address in the official United Kingdom business register. The exact count is shown live at the top of this page.

Q: Where does Reading company data come from?

Reading 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.

Q: How often is Reading data updated?

Core registry fields are refreshed weekly. Enriched fields (revenue, employees, contact) are refreshed monthly so your Reading list never goes stale.

Q: Can I filter Reading companies by industry?

Yes. Every Reading 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.

Q: Which file formats do you deliver?

Excel (.xlsx), CSV, and JSON. For API customers, data is streamed as paginated JSON. Custom formats (Parquet, SQL dump) are available on request.

Q: Is the Reading data GDPR compliant?

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).

Q: Can I get a sample before buying?

Yes. Request a free 100-record sample of Reading data and we will email it within one business day.

Q: Do you offer API access for Reading data?

Yes. The full Reading dataset is available through our REST API with the same filters as our directory builder. See our API page for pricing tiers.

Q: How fast can Reading data be delivered?

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.

Q: Can I get historical Reading data?

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.

Behind every street in Reading sits a business. 11,016 of them, to be exact, all registered in the United Kingdom business register. The biggest single industry is property lessors with 576 companies, roughly 5% of everything that does business in the city.

11,016 businesses indexed

Sse Hornsea LIMITEDSse Hornsea LIMITED

	Company Name	Country	City	Address 1	State/Province	Postal Code	Website	Founding Year	Yearly Revenue in U.S. Dollars	Employees Total	Business Legal Type - Description	Number of Companies in Group	Company Registration Number
1	Sse Hornsea LIMITED	Unitedkingdom	Reading	43 Forbury Road	Reading	RG1 3JH	N/A	2002	$4,207,213,612	97	Corporation	487	04467860
2	Iqvia LTD.	Unitedkingdom	Reading	3 Forbury Place	Reading	RG1 3JH	iqvia.*****	1995	$3,808,268,850	3,643	Corporation	646	03022416
3	Thames Water Utilities LIMITED	Unitedkingdom	Reading	Clearwater Court	Reading	RG1 8DB	thameswater.*****	1989	$3,463,781,927	7,824	Corporation	34	02366661
4	Thames Water Utilities Holdings LIMITED	Unitedkingdom	Reading	Clearwater Court	Reading	RG1 8DB	thameswater.*****	1974	$3,463,781,927	7,824	Corporation	34	06195202
5	Sse Energy Supply LIMITED	Unitedkingdom	Reading	1 Forbury Place	Reading	RG1 3JH	ssebusinessenergy.*****	1999	$3,289,719,991	1,057	Corporation	487	03757502
6	Aldermore Group PLC	Unitedkingdom	Reading	4th Floor Block D	Reading	RG1 1AX	aldermore.*****	2008	$1,945,641,676	1,959	Corporation	82	06764335
7	Aldermore Bank PLC	Unitedkingdom	Reading	Aldermore	Reading	RG1 1AX	aldermore.*****	1969	$1,778,124,424	1,331	Corporation	82	00947662
8	Southern Electric Power Distribution PLC	Unitedkingdom	Reading	No.1 Forbury Place	Reading	RG1 3JH	sse.*****	2000	$1,438,793,939	3,004	Corporation	487	04094290
9	Sse Generation LIMITED	Unitedkingdom	Reading	No.1 Forbury Place	Reading	RG1 3JH	sseenterprise.*****	1991	$1,190,730,381	725	Corporation	487	02310571
10	Expro Holdings UK 3 LIMITED	Unitedkingdom	Reading	Davidson House	Reading	RG1 3EU	exprogroup.*****	2008	$1,032,236,105	4,148	Corporation	71	06492082
11	Ericsson LIMITED	Unitedkingdom	Reading	14th Floor Thames Tower	Reading	RG1 1LX	ericsson.*****	1968	$896,988,271	1,403	Corporation	547	00942215
12	Practice Plus Group Topco LIMITED	Unitedkingdom	Reading	The Exchange	Reading	RG7 4SA	southwestlondonoutofhours.*****	2019	$895,253,660	8,867	Corporation	14	12250218
13	Practice Plus Group Bidco LIMITED	Unitedkingdom	Reading	The Exchange	Reading	RG7 4SA	practiceplusgroup.*****	2019	$895,253,660	8,867	Corporation	14	12250564
14	Cellnex UK LIMITED	Unitedkingdom	Reading	R Plus	Reading	RG1 1AZ	cellnextelecom.*****	2004	$801,847,300	272	Corporation	89	05153745
15	Diversified Energy Company LIMITED	Unitedkingdom	Reading	4th Floor	Reading	RG1 1NB	N/A	2014	$794,841,000	1,571	Corporation	2	09156132
16	Sse Energy Markets LIMITED	Unitedkingdom	Reading	No.1 Forbury Place	Reading	RG1 3JH	N/A	2015	$727,998,868	297	Corporation	487	09442646
17	Cunningham Lindsey Holdings Ii (delaware), LLC	Unitedkingdom	Reading	Apex Plaza Forbury Road	Reading	RG1 1AX	cunninghamlindsey.*****	2016	$708,076,000	4	Foreign company	153	FC033214
18	Brevan Howard Asset Management Services LIMITED	Unitedkingdom	Reading	4th Floor	Reading	RG1 1NB	brevanhoward.*****	2017	$690,947,391	463	Corporation	4	11117501
19	Sse Thermal Energy Operations LIMITED	Unitedkingdom	Reading	43 Forbury Road	Reading	RG1 3JH	N/A	2020	$689,290,327	276	Corporation	487	12697902
20	On Tower UK LIMITED	Unitedkingdom	Reading	R+, 4th Floor	Reading	RG1 1AZ	N/A	1996	$633,118,089	223	Corporation	89	03196207
21	Portal S.A.	Unitedkingdom	Reading	Paul Williams + 1	Reading	RG11 1NP	N/A	1990	$628,570,184	95	Foreign company	N/A	FC015311
22	Cornerstone Telecommunications Infrastructure LIMITED	Unitedkingdom	Reading	Hive 2, 1530 Arlington Business Park	Reading	RG7 4SA	cornerstone.*****	2012	$612,318,519	350	Corporation	N/A	08087551
23	Iqvia Rds Holdings	Unitedkingdom	Reading	23 Forbury Road	Reading	RG1 3JH	N/A	1992	$595,581,220	118	Corporation	646	02703164
24	Pepsico International LIMITED	Unitedkingdom	Reading	7th Floor	Reading	RG1 1LN	pepsico.*****	1965	$593,839,294	718	Corporation	149	01521219
25	Vs UK Holdings 2 LIMITED	Unitedkingdom	Reading	1st Floor	Reading	RG1 3EU	N/A	2020	$590,632,267	9	Corporation	38	12938336

Showing 25 of 11,016 companies

Request Free Sample

Largest companies in Reading

Which company is the largest in Reading 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, Sse Hornsea LIMITED comes first in Reading. It is part of a group with $4.2 billion in yearly revenue. By headcount, Yell Bidco LIMITED comes first with 3,664 employees. We only looked at the 7,551 corporations in Reading for this; sole traders, foundations and other legal forms are left out.

The two tables below show how all 11,016 companies in Reading are spread across revenue and headcount bands.

Yearly revenue

39.5%of companies have less than $100,000 in yearly revenue

Revenue (USD)	Count	Share
up to $100,000	4,349	39.5%
$100,000 to $500,000	3,131	28.4%
$500,000 to $1M	551	5.0%
$1M to $5M	659	6.0%
$5M to $10M	160	1.5%
$10M to $50M	226	2.1%
$50M to $100M	50	0.5%
$100M to $500M	65	0.6%
$500M to $1B	19	0.2%
$1B or more	10	0.1%
Unknown	1,796	16.3%

Headcount

68.0%of companies have 1 to 4 employees

Employees	Count	Share
1-4	7,493	68.0%
5-9	820	7.4%
10-19	408	3.7%
20-49	320	2.9%
50-99	116	1.1%
100-199	66	0.6%
200-499	59	0.5%
500-999	30	0.3%
1,000-4,999	19	0.2%
5,000-9,999	1	<0.1%
Unknown	1,684	15.3%

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

Largest industries in Reading

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

Property lessors

576 companies

SIC 6519

View all 576 in our tool →

Property developers

530 companies

SIC 6552

View all 530 in our tool →

IT services

502 companies

SIC 7379

View all 502 in our tool →

General business services

492 companies

SIC 7389

View all 492 in our tool →

Restaurants and eating places

484 companies

SIC 5812

View all 484 in our tool →

Real estate agents and managers

401 companies

SIC 6531

View all 401 in our tool →

Holding firms

320 companies

SIC 6719

View all 320 in our tool →

Management consulting

317 companies

SIC 8742

View all 317 in our tool →

All industries in Reading

Together, property lessors, property developers and IT services make up the top three industries in Reading, accounting for 15% of the city's commercial activity. The oldest company we can find in Reading is Pitmans Solicitors, founded in 1820, with Robert Cort Properties LIMITED not far behind. They are still here, along with 11,014 other businesses in Reading.

Famous once for beer, bulbs and biscuits, Reading reinvented itself as the Thames Valley's tech capital, where global IT names share the M4 corridor with countless smaller firms. 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.

Nonclassifiable Establishments1,178
Lessors of Real Property, Not Elsewhere Classified576
Land Subdividers and Developers, Except Cemeteries530
Computer Related Services, Not Elsewhere Classified502
Business Services, Not Elsewhere Classified492
Eating Places484
Real Estate Agents and Managers401
Offices of Holding Companies, Not Elsewhere Classified320
Management Consulting Services317
Computer Programming Services232
Other industries5,984

Put this company table on your own website for free

Run a website about Reading, such as a business association, a local news site or a business directory? You are welcome to use the company table from the top of this page for free. Copy the code below and paste it into your page.

We update our data every month, and the table on your site updates with it. Your site stays current with no work on your side, and your visitors always see the latest companies in Reading.

We like seeing our data used. Drop us a line with a link to your site at info@companydata.com.

HTML

<iframe src="https://companydata.com/embed/city/reading/" width="100%" height="700" frameborder="0" loading="lazy" title="Companies in Reading"></iframe>
<p>Source: <a href="https://companydata.com/uk/reading/">Companies in Reading</a> by CompanyData</p>

How you receive Reading 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.

Excel / CSV download

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

API access

Stream Reading company data directly into your CRM, marketing stack, or analytics pipeline. JSON, REST, 50+ fields per record.

Discover the API

Live search tool

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

Open the search tool

Frequently Asked Questions

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