Company lists · Data refreshed September 2026

Top 10 Functional programming developers based in the United Kingdom

RevenueBase identified 25 company matches for functional programming developers associated with the United Kingdom as of September 2026 and tracks 208 professional contacts across them, including 55 with verified work emails. London is the largest hub.

This list covers company matches for functional programming developers 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 20, 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 20, 2026 How this list was built
25Companies
208Contacts tracked
55Verified emails
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The 10 largest functional programming developers based in the United Kingdom

Ranked by team size
Top 10 of 25 company matches for functional programming developers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20087 contacts →

Exact match

“JUXT joins forces with Grid Dynamics, JUXT is a cutting-edge software consultancy that delivers innovation to large enterprises and high-performing organisations.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20056 contacts →

Exact match

“MLabs Consulting helps to setup project specification, implementation, management and maintenance of technical projects for AI, Fintech, Information Technology and more.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 20, 20261-1017 contacts →

Exact match

“Our clients use Haskell in their business to gain a competitive advantage.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchBirmingham, United KingdomHQ recorded Sep 20, 20261-1012 contacts →

Exact match

“JHJ is a small software development and consultancy firm specialising in Clojure,"devops", and rapid MVP prototyping.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchMiddlesbrough, United KingdomHQ recorded Sep 20, 20261-107 contacts →

Exact match

“Greenlord Studios was established in 2016 as a software engineering and consultancy company, aiming to provide bespoke coding solutions for companies of any shape or size.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 20, 20261-104 contacts →

Exact match

“Pixelated Noise is a forward-looking software consultancy.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchBrighton, United KingdomHQ recorded Sep 20, 202611-503 contacts →

Exact match

“Software development consultancy specialising in the Scala programming language.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 20, 20261-102 contacts →

Exact match

“We provide consultancy on Enterprise Software Architecture and Development with Scala and Java.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 20, 20261-101 contacts →

Exact match

“Effective Labs provides software consultancy and development services for reliable and resilient distributed systems.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchVerwood, United KingdomHQ recorded Sep 20, 20261-101 contacts →

Exact match

“am a freelance Senior Software Engineer specialising in front-end development, providing services and consultancy through my company Newtriks Ltd.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 10 of 25 functional programming developers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 55 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Functional programming developers based in the United Kingdom at a glance

As of Sep 20, 2026
26.4%Verified-email coverage
8.3Average contacts per company
1-10Median size (employees)
60.0%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
3
51-200
2
10001+
1

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 25 companies.

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 “functional programming developers” 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 55 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 20, 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.

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 “functional programming developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many functional programming developers are there based in the United Kingdom?

RevenueBase identified 25 company matches for functional programming developers 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?

JUXT tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most functional programming developers?

London leads with 15 company records, followed by Cambridge (2) and Birmingham (1).

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 55 professional contacts with verified work emails tracked across these 25 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 20, 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.