Company lists · Data refreshed September 2026

Top 25 Natural language processing services based in the United Kingdom

Name: Natural language processing services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 86 companies tracked

RevenueBase identified 86 natural language processing services headquartered in the United Kingdom as of September 2026 and tracks 675 professional contacts across them, including 232 with verified work emails. London is the largest hub.

This list covers natural language processing services 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 20, 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 20, 2026 86% judged on-target in blind review

86Companies

675Contacts tracked

232Verified emails

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The 25 largest natural language processing services based in the United Kingdom

Ranked by team size

Top 25 of 86 natural language processing services based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to natural language processing services: 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	Speechmatics	Indirect evidence	Cambridge, United KingdomHQ checked Sep 20, 2026	51-200	115 contacts →
	Indirect evidence “Speechmatics is the world’s leading expert in speech technology, combining the latest breakthroughs in AI and ML to unlock the business value in human speech.” Source: RevenueBase Database · checked Sep 20, 2026
2	Gravitas AI	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	50 contacts →
	Indirect evidence “Gravitas AI is a niche artificial intelligence and blockchain company with a focus on empowering organisations to optimize productivity and enhance customer experience.” Source: RevenueBase Database · checked Sep 20, 2026
3	Sense Street	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	42 contacts →
	Strong evidence “We are developing natural language understanding systems for capital markets.” Source: RevenueBase Database · checked Sep 20, 2026
4	IOVOX	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	35 contacts →
	Indirect evidence “The iovox AI platform unlocks the potential of every customer conversation, from calls and texts to chats.” Source: RevenueBase Database · checked Sep 20, 2026
5	Nanosemantics LAB	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	30 contacts →
	Indirect evidence “Over the 14 years of experience, Nanosemantics Lab has accumulated multiple technologies for human-machine communication, in addition to the vast knowledge database of dialogs in…” Source: RevenueBase Database · checked Sep 20, 2026
6	Relative Insight	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	28 contacts →
	Indirect evidence “Relative Insight is the world’s leading AI-driven customer intelligence platform, helping businesses of all sizes unlock value from unstructured customer data sources.” Source: RevenueBase Database · checked Sep 20, 2026
7	Alana AI	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “From pioneering AI and NLP in Latin America to achieving US$3M in sales, Alana has shaped the way brands and customers connect.” Source: RevenueBase Database · checked Sep 20, 2026
8	JAID	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	19 contacts →
	Indirect evidence “Jaid is an AI-powered platform that identifies and extracts critical data from across diverse company and customer communications.” Source: RevenueBase Database · checked Sep 20, 2026
9	MERX	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	10 contacts →
	Indirect evidence “Merx helps brands sell on messaging channels (e.g.” Source: RevenueBase Database · checked Sep 20, 2026
10	Hertzian	Indirect evidence	Truro, United KingdomHQ checked Sep 20, 2026	11-50	9 contacts →
	Indirect evidence “Hertzian is recognised by the UK government as one of the country’s leading AI companies with clients like the NHS, Falmouth University, Warner Brothers and Riot Games.” Source: RevenueBase Database · checked Sep 20, 2026
11	Unityflow AI	Indirect evidence	Glasgow, United KingdomHQ checked Sep 20, 2026	1-10	9 contacts →
	Indirect evidence “UnityFlow AI builds applied AI systems that turn human communication and workflows into actionable intelligence.” Source: RevenueBase Database · checked Sep 20, 2026
12	Voxann	Partial evidence	Manchester, United KingdomHQ checked Sep 20, 2026	1-10	6 contacts →
	Partial evidence “At voxANN, we are bridging beyond the language gap between written text and spoken word through a fusion of human expertise and AI technology.” Source: RevenueBase Database · checked Sep 20, 2026
13	Stobee	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “At Stobee, we provide the space for you to enhance customer interactions, making more memorable meaningful relationships.” Source: RevenueBase Database · checked Sep 20, 2026
14	Adaptive Reasoning	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	3 contacts →
	Indirect evidence “Adaptive Reasoning provides a range of cloud-based software solutions for managing documentation and related risks and data needs.” Source: RevenueBase Database · checked Sep 20, 2026
15	Datainventa	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	3 contacts →
	Strong evidence “Hybrid AI for Real-World Natural Language Processing Our Solutions NER - Our powerful NER (Named Entity Recognition) Engine can detect Companies, Brands, Persons, Locations…” Source: RevenueBase Database · checked Sep 20, 2026
16	Super CAT Technology Limited	Indirect evidence	Hong Kong, United KingdomHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “Super Cat Technology Limited is an award-winning agency in Hong Kong.” Source: RevenueBase Database · checked Sep 20, 2026
17	Text Alchemy	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “As leading AI consultants, we specialize in creating software applications for knowledge workers.” Source: RevenueBase Database · checked Sep 20, 2026
18	Oxtractor	Strong evidence	Oxford, United KingdomHQ checked Sep 20, 2026	1-10	2 contacts →
	Strong evidence “Oxtractor extracts actionable insights from social data using natural language processing and AI.” Source: RevenueBase Database · checked Sep 20, 2026
19	Conversations By AMI	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	1 contacts →
	Indirect evidence “Forget everything you know about chatbots.” Source: RevenueBase Database · checked Sep 20, 2026
20	fortuit.ai	Strong evidence	Nottingham, United KingdomHQ checked Sep 20, 2026	1-10	1 contacts →
	Strong evidence “Artificial intelligence (AI) technologies, an umbrella term that includes multiple technologies such as Machine Learning (ML) and Natural Language Processing (NLP), are being…” Source: RevenueBase Database · checked Sep 20, 2026
21	RED Marina	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	1 contacts →
	Partial evidence “Red Marina leverages state-of-the-art language models and integrates your bespoke data to deliver tailored solutions that revolutionise your content and make it accessible through…” Source: RevenueBase Database · checked Sep 20, 2026
22	Kingfisher Labs	Partial evidence	Cambridge, United KingdomHQ checked Sep 20, 2026	1-10	1 contacts →
	Partial evidence “AI and Machine Learning Voice and language technology - speech recognition, text-to-speech, conversational AI, human-computer dialogue, NLP & more Bridge the gap between technical…” Source: RevenueBase Database · checked Sep 20, 2026
23	Aigain LTD	Indirect evidence	Harrogate, United KingdomHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “Harnessing the power of Ai for bespoke business applications.” Source: RevenueBase Database · checked Sep 20, 2026
24	Aplisay	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “We make conversations.” Source: RevenueBase Database · checked Sep 20, 2026
25	Kingsai	Indirect evidence	Solihull, United KingdomHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “At Kings Ai, a leading provider of innovative AI solutions for businesses.” Source: RevenueBase Database · checked Sep 20, 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: natural language processing services. 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 natural language processing services.
Partial evidence: Its own public description names part of natural language processing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name natural language processing services. 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 86 natural language processing services based in the United Kingdom

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Natural language processing services based in the United Kingdom at a glance

As of Sep 20, 2026

34.4%Verified-email coverage

7.8Average contacts per company

1-10Median size (employees)

52.3%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 86 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 natural language processing services, 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 “natural language processing services”. 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 natural language processing services), 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 natural language processing services, 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, 232 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 20, 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.

Natural language processing services by metro

Natural language processing services in London45

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 natural language processing services, 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 natural language processing services are there based in the United Kingdom?

RevenueBase identified 86 natural language processing services 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?

Speechmatics, headquartered in Cambridge, tops this list with the largest team on record.

Which city has the most natural language processing services?

London leads with 45 headquartered companies, followed by Manchester (4) and Cambridge (3).

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 232 verified decision-maker contacts tracked across these 86 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 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 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.