Company lists · Data refreshed September 2026

Top 25 Startup software development agencies based in the United Kingdom

Name: Startup software 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 29, 2026 904 companies tracked

RevenueBase identified 904 startup software development agencies headquartered in the United Kingdom as of September 2026 and tracks 5,853 professional contacts across them, including 1,058 with verified work emails. London is the largest hub.

This list covers startup software development agencies headquartered in the 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 29, 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 29, 2026 86% judged on-target in blind review

904Companies

5,853Contacts tracked

1,058Verified emails

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The 25 largest startup software development agencies based in the United Kingdom

Ranked by team size

Top 25 of 904 startup software development agencies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to startup software development agencies: 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	scrums.com	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	163 contacts →
	Partial evidence “Scrums.com is the Software Engineering Orchestration Platform (SEOP).” Source: RevenueBase Database · checked Sep 29, 2026
2	Xynotech	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	96 contacts →
	Strong evidence “Xynotech is a provider of IT consulting and software development services that help companies overtake their competition.” Source: RevenueBase Database · checked Sep 29, 2026
3	SIYA	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	87 contacts →
	Partial evidence “We are Siya Tech, a startup studio where we partner with tech startups to fuel their growth.” Source: RevenueBase Database · checked Sep 29, 2026
4	Timspark	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	73 contacts →
	Strong evidence “Timspark is a software development company/hub that creates custom software solutions to fit clients’ business needs.” Source: RevenueBase Database · checked Sep 29, 2026
5	On The Spot Development	Indirect evidence	Harrogate, United KingdomHQ checked Sep 29, 2026	51-200	72 contacts →
	Indirect evidence “At On The Spot, we help tech companies hire engineers and build offshore R&D teams in Poland and Georgia./ 30+ R&D teams built / 400+ roles filled / 8 M & As across customer…” Source: RevenueBase Database · checked Sep 29, 2026
6	Podtech	Strong evidence	Milton Keynes, United KingdomHQ checked Sep 29, 2026	51-200	69 contacts →
	Strong evidence “PODTECH is a software development company with a comprehensive suite of services.” Source: RevenueBase Database · checked Sep 29, 2026
7	Blueberry Consultants LTD	Strong evidence	Birmingham, United KingdomHQ checked Sep 29, 2026	51-200	65 contacts →
	Strong evidence “Blueberry Consultants is a private limited software development company, formed in 1997 by the current Managing Director, Martin Green.” Source: RevenueBase Database · checked Sep 29, 2026
8	Appolica Venture Studio	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	51 contacts →
	Indirect evidence “Appolica is a venture studio on a mission to turn ambitious tech-driven ventures into market leaders.” Source: RevenueBase Database · checked Sep 29, 2026
9	Evolved Ideas	Partial evidence	Leicester, United KingdomHQ checked Sep 29, 2026	51-200	49 contacts →
	Partial evidence “Evolved Ideas is a trusted long-term partner of startups, scale-ups and enterprises.” Source: RevenueBase Database · checked Sep 29, 2026
10	Avco Systems	Strong evidence	Slough, United KingdomHQ checked Sep 29, 2026	51-200	46 contacts →
	Strong evidence “Formed in 1986, Avco Systems Ltd has over 40 years of experience in the Software Development sector and provides a range of quality products and services to clients throughout the…” Source: RevenueBase Database · checked Sep 29, 2026
11	Theodo UK	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	46 contacts →
	Indirect evidence “Theodo was founded 14 years ago and comprises 700 employees across offices in London, Paris, New York, Casablanca and Cape Town.” Source: RevenueBase Database · checked Sep 29, 2026
12	Blockmob Labs	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	46 contacts →
	Partial evidence “Blockmob Labs is a full-stack product engineering studio building production-grade software across Web3, AI, fintech, SaaS, mobile, and cloud infrastructure.” Source: RevenueBase Database · checked Sep 29, 2026
13	Agile Mindware	Partial evidence	Croydon, United KingdomHQ checked Sep 29, 2026	11-50	43 contacts →
	Partial evidence “Agile MindWare helps startups and growing businesses stop losing time to manual work and start scaling with AI.” Source: RevenueBase Database · checked Sep 29, 2026
14	Limeup	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	42 contacts →
	Strong evidence “Limeup is an application & software development company.” Source: RevenueBase Database · checked Sep 29, 2026
15	Devgrid	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	39 contacts →
	Partial evidence “DevGrid was Founded in 2015 by a group of seasoned tech entrepreneurs on a mission to make outsourced product development a positive and productive experience.” Source: RevenueBase Database · checked Sep 29, 2026
16	Mifort	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	39 contacts →
	Strong evidence “We are a software development outsourcing company with 9+ years in business and 200+ successful projects.” Source: RevenueBase Database · checked Sep 29, 2026
17	CML Team LTD	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	38 contacts →
	Partial evidence “We are a professional team of senior software engineers with more than 10 years of experience in Java, Web, and Mobile technology stacks.” Source: RevenueBase Database · checked Sep 29, 2026
18	Codeleap	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	37 contacts →
	Indirect evidence “CodeLeap partners with ambitious companies to build and scale digital products.” Source: RevenueBase Database · checked Sep 29, 2026
19	The Tech Galore	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	37 contacts →
	Strong evidence “We are a leading global software development company that enables disruptive startups and enterprises to bridge the gap between Ideas and Reality through innovative web and…” Source: RevenueBase Database · checked Sep 29, 2026
20	Whiz Solutions LTD - UK	Strong evidence	Whitefriars Avenue, United KingdomHQ checked Sep 29, 2026	51-200	36 contacts →
	Strong evidence “Whiz Solutions is a dynamic and innovative software development company that specializes in delivering cutting-edge digital solutions to businesses across industries.” Source: RevenueBase Database · checked Sep 29, 2026
21	Avamae Software Solutions LTD	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	35 contacts →
	Strong evidence “AVAMAE is a London-based product development agency, building bespoke mobile, software and web applications since 2011.” Source: RevenueBase Database · checked Sep 29, 2026
22	Kernelics	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	35 contacts →
	Partial evidence “Kernelics is a passionate team of web and mobile software developers, product managers, designers, and QA engineers.” Source: RevenueBase Database · checked Sep 29, 2026
23	IVY Tech	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	35 contacts →
	Strong evidence “We are reinventing how startups grow their software development teams by bridging the gap between outsourcing and in-house hiring.” Source: RevenueBase Database · checked Sep 29, 2026
24	Terabit IT	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	35 contacts →
	Strong evidence “TeraBit IT is a custom software development firm, serving clients all over the world.” Source: RevenueBase Database · checked Sep 29, 2026
25	Reach Studios	Strong evidence	Sheffield, United KingdomHQ checked Sep 29, 2026	11-50	31 contacts →
	Strong evidence “The web & mobile app development agency helping start-ups, SMEs & global brands with digital projects.” Source: RevenueBase Database · checked Sep 29, 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: startup software development agencies. 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 startup software development agencies.
Partial evidence: Its own public description names part of startup software development agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name startup software development agencies. 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 904 startup software development agencies based in the United Kingdom

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Startup software development agencies based in the United Kingdom at a glance

As of Sep 29, 2026

18.1%Verified-email coverage

6.5Average contacts per company

1-10Median size (employees)

45.4%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

617

11-50

229

51-200

201-500

501-1,000

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 904 companies.

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 startup software development agencies, 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 the United Kingdom whose own description of what they do matches “startup software development agencies”. 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 startup software development agencies), 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 startup software development agencies, and records with no verified work email. Companies headquartered outside United Kingdom 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, 1,058 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 29, 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.

Startup software development agencies by metro

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 startup software development agencies, 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 startup software development agencies are there based in the United Kingdom?

RevenueBase identified 904 startup software development agencies headquartered in the 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?

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

Which city has the most startup software development agencies?

London leads with 410 headquartered companies, followed by Manchester (27) and Birmingham (18).

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 1,058 verified decision-maker contacts tracked across these 904 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 29, 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.