Company lists · Data refreshed September 2026

Top 15 Custom web development agencies based in the United Kingdom

Name: Custom web development agencies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 8,094 companies tracked

RevenueBase identified 8,094 company matches for custom web development agencies associated with the United Kingdom as of September 2026 and tracks 38,573 professional contacts across them, including 6,049 with verified work emails and 2,732 with mobile numbers. London is the largest hub.

This list covers company matches for custom web development agencies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 1, 2026 How this list was built

8,094Companies

38,573Contacts tracked

6,049Verified emails

2,732Mobile numbers

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The 15 largest custom web development agencies based in the United Kingdom

Ranked by team size

Top 15 of 8,094 company matches for custom web development agencies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Elsner Technologies Pvt. LTD	Exact match	Hornchurch, United Kingdom	201-500	510 contacts →
	Exact match “Founded in 2006, Elsner Technologies is a global IT solutions company dedicated to helping businesses of all sizes thrive in the digital age.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
2	Spindogs	Exact match	Cardiff, United Kingdom	51-200	61 contacts →
	Exact match “Spindogs is an insight-led and consultative digital experience and technology company.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
3	Cmolds	Exact match	Pendlebury Manchester, United Kingdom	501-1,000	55 contacts →
	Exact match “CMOLDS is a tech development company founded in 2016, focused on building mobile and web applications, UX/UI design systems, and custom software solutions.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
4	Zengenti	Exact match	Cleedownton Ludlow, United Kingdom	51-200	46 contacts →
	Exact match “Since 2001 we have been crafting and refining our Content Management System (Contensis) to reflect and improve on web technologies as they develop.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
5	Nettl HQ	Exact match	Manchester, United Kingdom	201-500	38 contacts →
	Exact match “Nettl is a local web, print and design studio offering everything a business needs to build its brand and grow online.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
6	Htlogics	Exact match	Ewell, United Kingdom	51-200	37 contacts →
	Exact match “Welcome to htlogics, an IT services company focused on building reliable and practical technology solutions.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
7	RVS Media LTD	Exact match	London, United Kingdom	51-200	36 contacts →
	Exact match “RVS Media is an established creative eCommerce development company based in London.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
8	Interactive Technology Corporation ITC UK	Exact match	Manchester, United Kingdom	51-200	25 contacts →
	Exact match “ITC specialises in support services, marketing and software development.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
9	Origincore Consulting LLP Origincoretech.com	Exact match	London, United Kingdom	1,001-5,000	25 contacts →
	Exact match “At Origin Core Tech, we are committed to delivering cutting-edge IT solutions, web development, and internet marketing services that empower businesses to thrive in the digital…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
10	Techcinity	Exact match	Manchester, United Kingdom	51-200	20 contacts →
	Exact match “At Techcinity, our digital creations transcend mere platforms; they're expressions of artistry and novelty.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
11	Hostbax	Exact match	Walsall, United Kingdom	51-200	12 contacts →
	Exact match “Hostbax \| A Premium Web Development Company \| Marketing agency \| Domain and hosting Registration "We love what we do and we love helping others succeed at what they love to do."…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
12	I10studios	Exact match	London, United Kingdom	51-200	8 contacts →
	Exact match “We take pride in our strong competence for designing, developing engineering robust software and Progressive Web Applications.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
13	Penta Software & Creative UK	Exact match	London, United Kingdom	51-200	4 contacts →
	Exact match “As Penta Software & Creative, we comprise a distinguished team of web design and software experts, dedicated to pushing the boundaries of the digital realm with pioneering…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
14	Webiniserltd	Exact match	London, United Kingdom	51-200	3 contacts →
	Exact match “Webiniser Ltd is a premier digital agency based in London, specializing in crafting state-of-the-art web and mobile solutions, custom software development, and strategic digital…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
15	search-creative.co.uk	Exact match	Ferndown, United Kingdom	51-200	2 contacts →
	Exact match “Search Creative is a reputable website design and marketing company that offers a wide range of professional services for small - medium sized business throughout the UK.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “custom web development agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 15 of 8,094 custom web development agencies based in the United Kingdom

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Custom web development agencies based in the United Kingdom at a glance

As of Sep 1, 2026

15.7%Verified-email coverage

7.1%Mobile-number coverage

4.8Average contacts per company

1-10Median size (employees)

25.2%Largest-city concentration · London

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

6,425

11-50

1,309

51-200

168

201-500

501-1,000

1,001-5,000

10001+

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United Kingdom whose business descriptions match “custom web development agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 6,049 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 1, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Custom web development agencies by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “custom web development agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many custom web development agencies are there based in the United Kingdom?

RevenueBase identified 8,094 company matches for custom web development agencies associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Elsner Technologies Pvt. LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most custom web development agencies?

London leads with 2037 company records, followed by Manchester (237) and Birmingham (149).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 6,049 professional contacts with verified work emails tracked across these 8,094 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 1, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.