Company lists · Data refreshed September 2026

Top 25 Responsive web design firms based in London, United Kingdom

Name: Responsive web design firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 633 companies tracked

RevenueBase identified 633 responsive web design firms headquartered in London, United Kingdom as of September 2026 and tracks 2,346 professional contacts across them, including 283 with verified work emails and 104 with mobile numbers. London is the largest hub.

This list covers responsive web design firms headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 13, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 13, 2026 86% judged on-target in blind review

633Companies

2,346Contacts tracked

283Verified emails

104Mobile numbers

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The 25 largest responsive web design firms based in London, United Kingdom

Ranked by team size

Top 25 of 633 responsive web design firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to responsive web design firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	KRIFY	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	221 contacts →
	Partial evidence “Krify is a results-driven technology company specializing in crafting user-centric mobile apps, web applications, and software solutions.” Source: RevenueBase Database · checked Sep 13, 2026
2	QTECH	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	43 contacts →
	Indirect evidence “Over 25 years of experience; over projects delivered and clients in 10 different countries.” Source: RevenueBase Database · checked Sep 13, 2026
3	Yellowball	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	26 contacts →
	Partial evidence “We’re a hand-picked global team of exceptional designers, engineers, SEO experts and paid media specialists, crafting websites and digital experience that work as hard as you do.” Source: RevenueBase Database · checked Sep 13, 2026
4	Techcurl Media Solutions	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	21 contacts →
	Partial evidence “Techcurl is a leading agile development company specialising in Web and mobile development helping businesses deliver projects on time and budget.” Source: RevenueBase Database · checked Sep 13, 2026
5	Vsourz	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	17 contacts →
	Indirect evidence “Vsourz is an international technology partner helping organisations turn digital ambition into production-ready outcomes.” Source: RevenueBase Database · checked Sep 13, 2026
6	waat.eu	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	17 contacts →
	Partial evidence “WAAT is a multi-talented team of developers, engineers, designers and marketing experts with a vast wealth of experience in delivering websites, systems and apps.” Source: RevenueBase Database · checked Sep 13, 2026
7	APP Genie	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	17 contacts →
	Indirect evidence “App Genie (appg.co) is a mobile app development agency founded in 2022, with its product team based in Istanbul, Türkiye.” Source: RevenueBase Database · checked Sep 13, 2026
8	Spiderhunts Technologies LTD	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	16 contacts →
	Partial evidence “Welcome to SpiderHunts Technologies Private Limited, a registered company that has been providing top-quality web development, SEO, mobile app development, web scraping, data…” Source: RevenueBase Database · checked Sep 13, 2026
9	Aufbau	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	16 contacts →
	Partial evidence “Creative Web Engineering.” Source: RevenueBase Database · checked Sep 13, 2026
10	Apical IT Solutions LTD	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	15 contacts →
	Indirect evidence “Apical IT Solutions is a software technology company headquartered in London, United Kingdom (UK) with presence in India.” Source: RevenueBase Database · checked Sep 13, 2026
11	Chilli Fruit WEB Consulting	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	15 contacts →
	Strong evidence “Chilli Fruit is a web consultancy specialising in web design and online marketing.” Source: RevenueBase Database · checked Sep 13, 2026
12	HOT DOG Solutions Limited	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	15 contacts →
	Indirect evidence “Welcome to Hot Dog Solutions - your partner in crafting innovative, results-driven digital solutions.” Source: RevenueBase Database · checked Sep 13, 2026
13	Tallen	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	15 contacts →
	Strong evidence “We are a full-service digital enterprise highly specialized in Web Development, Mobile App Development, UI/UX design, content writing, digital marketing and web/app maintenance…” Source: RevenueBase Database · checked Sep 13, 2026
14	TOIMI	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	15 contacts →
	Partial evidence “Toimi is a leader in web and mobile development, with more than 8 years of experience in crafting software solutions for small to medium-sized businesses and enterprise-level…” Source: RevenueBase Database · checked Sep 13, 2026
15	Akiko Design	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	13 contacts →
	Strong evidence “Welcome to Akiko, your versatile web design and development agency.” Source: RevenueBase Database · checked Sep 13, 2026
16	Esoft Response	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	13 contacts →
	Partial evidence “About Us We design and build Websites, Mobile Apps and Software Applications providing an affordable solution for all your online business needs with many years of expertise to…” Source: RevenueBase Database · checked Sep 13, 2026
17	Binary Vision	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	12 contacts →
	Indirect evidence “Hello, we’re Binary Vision A leading force in digital for nearly 40 years Some people think digital is all about technology.” Source: RevenueBase Database · checked Sep 13, 2026
18	Webwisp	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	12 contacts →
	Partial evidence “WebWisp UK is a premium web development and marketing agency dedicated to building websites that don’t just look exceptional - they perform.” Source: RevenueBase Database · checked Sep 13, 2026
19	Kalago	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	11 contacts →
	Indirect evidence “A technology agency and team of experts with 20+ years’ experience.” Source: RevenueBase Database · checked Sep 13, 2026
20	Reaper Enterprises LTD	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	10 contacts →
	Partial evidence “Website design & development services for people & businesses with something to share.” Source: RevenueBase Database · checked Sep 13, 2026
21	Thinkology	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	9 contacts →
	Indirect evidence “For more than 20 years, Thinkology has helped organisations solve complex engagement, recruitment and digital transformation challenges.” Source: RevenueBase Database · checked Sep 13, 2026
22	Drykiss LTD	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	9 contacts →
	Partial evidence “DryKISS, London web and mobile development.” Source: RevenueBase Database · checked Sep 13, 2026
23	Node London	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	8 contacts →
	Indirect evidence “we are node.” Source: RevenueBase Database · checked Sep 13, 2026
24	DAM Digital	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	8 contacts →
	Indirect evidence “Nothing quite beats the feeling of achievement.” Source: RevenueBase Database · checked Sep 13, 2026
25	Moonraker	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	8 contacts →
	Indirect evidence “Creating Positive Trajectories” Source: RevenueBase Database · checked Sep 13, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: responsive web design firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names responsive web design firms.
Partial evidence: Its own public description names part of responsive web design firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name responsive web design firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 633 responsive web design firms based in London, United Kingdom

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Responsive web design firms based in London, United Kingdom at a glance

As of Sep 13, 2026

12.1%Verified-email coverage

4.4%Mobile-number coverage

3.7Average contacts per company

1-10Median size (employees)

22.6%Largest-city concentration · London

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

455

11-50

151

51-200

201-500

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

2210–30

5731–60

361–90

090–180

2180+

Company record updated

Median 79.0d

00–30

72031–60

1,15461–90

34290–180

130180+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among responsive web design firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in London, United Kingdom whose own description of what they do matches “responsive web design firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names responsive web design firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among responsive web design firms, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 283 across the full list. 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 13, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Responsive web design firms by metro in the United Kingdom

Responsive web design firms in London143

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names responsive web design firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many responsive web design firms are there based in London, United Kingdom?

RevenueBase identified 633 responsive web design firms headquartered in London, United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

KRIFY, headquartered in London, tops this list with the largest team on record.

Which city has the most responsive web design firms?

London leads with 143 headquartered companies, followed by Manchester (13) and Brighton (7).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 283 verified decision-maker contacts tracked across these 633 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 13, 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 Smart Search, 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.