Company lists · Data refreshed September 2026
Top 25 Assessment and testing platform developers based in the United Kingdom
RevenueBase identified 80 company matches for assessment and testing platform developers associated with the United Kingdom as of September 2026 and tracks 1,491 professional contacts across them, including 548 with verified work emails. London is the largest hub.
This list covers company matches for assessment and testing platform 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 27, 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.
The 25 largest assessment and testing platform developers based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 381 contacts → | ||||
Exact match “Surpass is a market-leading end-to-end assessment solution.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 2 | 122 contacts → | ||||
Exact match “Codility is the #1 partner for global enterprises using skill-based assessments to build strong engineering teams.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 3 | 93 contacts → | ||||
Exact match “CENTURY Tech is an award-winning AI education technology company focused on the learning, teaching and assessment space.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 4 | 75 contacts → | ||||
Exact match “Sova is a Talent Assessment Platform that streamlines how your organisation assesses talent.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 5 | 68 contacts → | ||||
Exact match “GL Education is a global leader in edtech with a clear mission: to accelerate learning for all children and adults of all ability levels and ethnic and social backgrounds…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 6 | 56 contacts → | ||||
Exact match “The E-Assessment Management Company Ltd (TEAMCo Ltd) was formed with the aim of becoming a positive disrupter in the Examination sector.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 7 | 38 contacts → | ||||
Exact match “AI-Ready Test Data Management for platform enterprise test/QA Synthesized provides continuous data availability for test automation & agentic AI workflows.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 8 | 37 contacts → | ||||
Exact match “Apprenticeship assessment is changing, but our services aren't.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 9 | 35 contacts → | ||||
Exact match “The Unified Assessment Platform Powering 3.5M+ Exams Annually Tomax gives universities and government agencies complete assessment infrastructure in one platform.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 10 | 33 contacts → | ||||
Exact match “Unseen combines assessment technology, candidate engagement, psychometric design and recruitment support solutions, with intelligent insights at every stage.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 11 | 28 contacts → | ||||
Exact match “Doublestruck is a market leader in the educational world, offering hugely popular assessment software in Primary and Secondary schools.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 12 | 25 contacts → | ||||
Exact match “Building the classroom of the future We are building an all-encompassing platform for educators, which at its core has a proprietary Learning Profile assessment combined with a…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 13 | 22 contacts → | ||||
Exact match “At Graduates First, our mission is simple - to help job seekers ace employers’ assessments and succeed in securing their dream job.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 14 | 17 contacts → | ||||
Exact match “Enhancing the role digital assessment solutions play throughout the lifelong learning journey.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 15 | 16 contacts → | ||||
Exact match “Synap is a leading online learning and exam platform that empowers organisations to deliver secure online training and assessments.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 16 | 15 contacts → | ||||
Exact match “Exam fraud is rising.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 17 | 15 contacts → | ||||
Exact match “Zzish is a software company that builds AI data-driven educational software to give teachers superpowers.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 18 | 14 contacts → | ||||
Exact match “The AI Copilot Built for Assessment.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 19 | 11 contacts → | ||||
Exact match “GradeMaker's test development technology improves quality, security, and efficiency for high-stakes assessment providers.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 20 | 10 contacts → | ||||
Exact match “Performance Learning is scientifically proven to accelerate performance, improve outcomes and nurture wellbeing.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 21 | 9 contacts → | ||||
Exact match “Speedwell’s assessment software allows you to run world-class multiple-choice and practical exams (OSCEs).” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 22 | 8 contacts → | ||||
Exact match “Conventional online psychometric assessments are time consuming, often inaccurate, biased, and easy to cheat using tools like ChatGPT.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 23 | 8 contacts → | ||||
Exact match “Sentira develops immersive learning and authentic assessment experiences that help organisations validate real-world capability.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 24 | 7 contacts → | ||||
Exact match “Human Reviewed Technical Assessments for Scaling Businesses Trusted by the world’s fastest growing businesses to cut time to hire by 50%, we deliver your technical assessment…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 25 | 6 contacts → | ||||
Exact match “We envision a world where anyone, anywhere can transform their life by accessing the world’s best data collection experience.” Recorded in the RevenueBase company graph · Sep 27, 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 “assessment and testing platform developers”. 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 25 of 80 assessment and testing platform developers based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 548 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Assessment and testing platform developers based in the United Kingdom at a glance
As of Sep 27, 2026Companies by employee count
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 80 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 “assessment and testing platform 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 548 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 27, 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 “assessment and testing platform developers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many assessment and testing platform developers are there based in the United Kingdom?
RevenueBase identified 80 company matches for assessment and testing platform 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?
BTL tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most assessment and testing platform developers?
London leads with 39 company records, followed by Manchester (3) and Cambridge (2).
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 548 professional contacts with verified work emails tracked across these 80 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 27, 2026.
Ready to reach these companies? Verified emails and direct dials for all 80 assessment and testing platform developers based in the United Kingdom. Start with a free account, no credit card.
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Assessment and testing platform developers by geography
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- Assessment and testing platform developers based in France
- Assessment and testing platform developers based in India
- Assessment and testing platform developers based in the Netherlands
- Assessment and testing platform developers based in the United States
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.
More company lists
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- Lists A-Z
- New lists
- Assessment and testing platform developers based in Brazil
- Assessment and testing platform developers based in Canada
- Assessment and testing platform developers based in France
- Assessment and testing platform developers based in India
- Assessment and testing platform developers based in the Netherlands
- Assessment and testing platform developers based in the United States
Company intelligence · public preview
Top 25 assessment and testing platform developers based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 80 matching company records for assessment and testing platform developers based in the United Kingdom, with 1,491 tracked contacts and 548 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 27, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 assessment and testing platform developers based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  BTLsurpass.comHQ: Saltaire, United KingdomReported employees: 51-200 | Saltaire, United Kingdom | 51-200 | Exact match | 381 contacts → |
“Surpass is a market-leading end-to-end assessment solution.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Codilitycodility.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 122 contacts → |
“Codility is the #1 partner for global enterprises using skill-based assessments to build strong engineering teams.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Century Techcentury.techHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 93 contacts → |
“CENTURY Tech is an award-winning AI education technology company focused on the learning, teaching and assessment space.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  SOVAsovaassessment.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 75 contacts → |
“Sova is a Talent Assessment Platform that streamlines how your organisation assesses talent.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  GL Educationgl-education.comHQ: Brentford, United KingdomReported employees: 201-500 | Brentford, United Kingdom | 201-500 | Exact match | 68 contacts → |
“GL Education is a global leader in edtech with a clear mission: to accelerate learning for all children and adults of all ability levels and ethnic and social backgrounds…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Teamcoteamcouk.comHQ: Chatham, United KingdomReported employees: 51-200 | Chatham, United Kingdom | 51-200 | Exact match | 56 contacts → |
“The E-Assessment Management Company Ltd (TEAMCo Ltd) was formed with the aim of becoming a positive disrupter in the Examination sector.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Synthesizedsynthesized.ioHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 38 contacts → |
“AI-Ready Test Data Management for platform enterprise test/QA Synthesized provides continuous data availability for test automation & agentic AI workflows.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Accelerate Peopleaccelerate-people.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 37 contacts → |
“Apprenticeship assessment is changing, but our services aren't.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Tomax-Think Academytomax.ioHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 35 contacts → |
“The Unified Assessment Platform Powering 3.5M+ Exams Annually Tomax gives universities and government agencies complete assessment infrastructure in one platform.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Unseenunseen-group.comHQ: Manchester, United KingdomReported employees: 51-200 | Manchester, United Kingdom | 51-200 | Exact match | 33 contacts → |
“Unseen combines assessment technology, candidate engagement, psychometric design and recruitment support solutions, with intelligent insights at every stage.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Doublestruckdoublestruck.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 28 contacts → |
“Doublestruck is a market leader in the educational world, offering hugely popular assessment software in Primary and Secondary schools.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Wonders Of Mathseducai.ioHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 25 contacts → |
“Building the classroom of the future We are building an all-encompassing platform for educators, which at its core has a proprietary Learning Profile assessment combined with a…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Graduates First JOB Assessment Expertsgraduatesfirst.comHQ: Huddersfield, United KingdomReported employees: 11-50 | Huddersfield, United Kingdom | 11-50 | Exact match | 22 contacts → |
“At Graduates First, our mission is simple - to help job seekers ace employers’ assessments and succeed in securing their dream job.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  RM Assessmentrm.comHQ: Abingdon, United KingdomReported employees: 1,001-5,000 | Abingdon, United Kingdom | 1,001-5,000 | Exact match | 17 contacts → |
“Enhancing the role digital assessment solutions play throughout the lifelong learning journey.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  SYNAPsynap.acHQ: Leeds, United KingdomReported employees: 11-50 | Leeds, United Kingdom | 11-50 | Exact match | 16 contacts → |
“Synap is a leading online learning and exam platform that empowers organisations to deliver secure online training and assessments.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Certify Assessment Solutionscertifyassessment.comHQ: Manchester, United KingdomReported employees: 1-10 | Manchester, United Kingdom | 1-10 | Exact match | 15 contacts → |
“Exam fraud is rising.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  ZZISHzzish.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 15 contacts → |
“Zzish is a software company that builds AI data-driven educational software to give teachers superpowers.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  keath.aikeath.aiHQ: Guildford, United KingdomReported employees: 11-50 | Guildford, United Kingdom | 11-50 | Exact match | 14 contacts → |
“The AI Copilot Built for Assessment.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Grademaker LTDgrademaker.comHQ: Cheltenham, United KingdomReported employees: 11-50 | Cheltenham, United Kingdom | 11-50 | Exact match | 11 contacts → |
“GradeMaker's test development technology improves quality, security, and efficiency for high-stakes assessment providers.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  MY Performance Learningmyperformancelearning.comHQ: Mayfair, United KingdomReported employees: 11-50 | Mayfair, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Performance Learning is scientifically proven to accelerate performance, improve outcomes and nurture wellbeing.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Speedwell Softwarespeedwellsoftware.comHQ: Chittering, United KingdomReported employees: 11-50 | Chittering, United Kingdom | 11-50 | Exact match | 9 contacts → |
“Speedwell’s assessment software allows you to run world-class multiple-choice and practical exams (OSCEs).” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Neurosightneurosight.ioHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 8 contacts → |
“Conventional online psychometric assessments are time consuming, often inaccurate, biased, and easy to cheat using tools like ChatGPT.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Sentirasentiraxr.comHQ: Manchester, United KingdomReported employees: 1-10 | Manchester, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Sentira develops immersive learning and authentic assessment experiences that help organisations validate real-world capability.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Geektasticgeektastic.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 7 contacts → |
“Human Reviewed Technical Assessments for Scaling Businesses Trusted by the world’s fastest growing businesses to cut time to hire by 50%, we deliver your technical assessment…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  quodit.ioquodit.ioHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“We envision a world where anyone, anywhere can transform their life by accessing the world’s best data collection experience.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 80 company matches
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Assessment and testing platform developers: dataset insights
September 27, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
80 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 80 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 27, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for assessment and testing platform developers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many assessment and testing platform developers did RevenueBase find based in the United Kingdom?
The saved snapshot records 80 matching company records, 1,491 tracked contacts and 548 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 27, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Assessment and testing platform developers by geography
- Assessment and testing platform developers based in Brazil
- Assessment and testing platform developers based in Canada
- Assessment and testing platform developers based in France
- Assessment and testing platform developers based in India
- Assessment and testing platform developers based in the Netherlands
- Assessment and testing platform developers based in the United States
Cite this list
RevenueBase Data Team. Top 25 assessment and testing platform developers based in the United Kingdom. Snapshot: September 27, 2026. https://revenuebase.ai/companies/assessment-and-testing-platform-developers/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Assessment and testing platform developers based in Brazil
- Assessment and testing platform developers based in Canada
- Assessment and testing platform developers based in France
- Assessment and testing platform developers based in India
- Assessment and testing platform developers based in the Netherlands
- Assessment and testing platform developers based in the United States
Company intelligence · public preview
Top 25 assessment and testing platform developers based in the United Kingdom
RevenueBase records 80 matching company records for assessment and testing platform developers based in the United Kingdom, with 1,491 tracked contacts and 548 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 27, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 assessment and testing platform developers based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | BTLsurpass.com HQ: Saltaire, United KingdomReported employees: 51-200 | Saltaire, United Kingdom | 51-200 | Exact match | 381 contacts → |
“Surpass is a market-leading end-to-end assessment solution.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Codilitycodility.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 122 contacts → |
“Codility is the #1 partner for global enterprises using skill-based assessments to build strong engineering teams.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Century Techcentury.tech HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 93 contacts → |
“CENTURY Tech is an award-winning AI education technology company focused on the learning, teaching and assessment space.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | SOVAsovaassessment.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 75 contacts → |
“Sova is a Talent Assessment Platform that streamlines how your organisation assesses talent.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | GL Educationgl-education.com HQ: Brentford, United KingdomReported employees: 201-500 | Brentford, United Kingdom | 201-500 | Exact match | 68 contacts → |
“GL Education is a global leader in edtech with a clear mission: to accelerate learning for all children and adults of all ability levels and ethnic and social backgrounds…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Teamcoteamcouk.com HQ: Chatham, United KingdomReported employees: 51-200 | Chatham, United Kingdom | 51-200 | Exact match | 56 contacts → |
“The E-Assessment Management Company Ltd (TEAMCo Ltd) was formed with the aim of becoming a positive disrupter in the Examination sector.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Synthesizedsynthesized.io HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 38 contacts → |
“AI-Ready Test Data Management for platform enterprise test/QA Synthesized provides continuous data availability for test automation & agentic AI workflows.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Accelerate Peopleaccelerate-people.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 37 contacts → |
“Apprenticeship assessment is changing, but our services aren't.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Tomax-Think Academytomax.io HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 35 contacts → |
“The Unified Assessment Platform Powering 3.5M+ Exams Annually Tomax gives universities and government agencies complete assessment infrastructure in one platform.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Unseenunseen-group.com HQ: Manchester, United KingdomReported employees: 51-200 | Manchester, United Kingdom | 51-200 | Exact match | 33 contacts → |
“Unseen combines assessment technology, candidate engagement, psychometric design and recruitment support solutions, with intelligent insights at every stage.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Doublestruckdoublestruck.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 28 contacts → |
“Doublestruck is a market leader in the educational world, offering hugely popular assessment software in Primary and Secondary schools.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Wonders Of Mathseducai.io HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 25 contacts → |
“Building the classroom of the future We are building an all-encompassing platform for educators, which at its core has a proprietary Learning Profile assessment combined with a…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Graduates First JOB Assessment Expertsgraduatesfirst.com HQ: Huddersfield, United KingdomReported employees: 11-50 | Huddersfield, United Kingdom | 11-50 | Exact match | 22 contacts → |
“At Graduates First, our mission is simple - to help job seekers ace employers’ assessments and succeed in securing their dream job.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | RM Assessmentrm.com HQ: Abingdon, United KingdomReported employees: 1,001-5,000 | Abingdon, United Kingdom | 1,001-5,000 | Exact match | 17 contacts → |
“Enhancing the role digital assessment solutions play throughout the lifelong learning journey.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | SYNAPsynap.ac HQ: Leeds, United KingdomReported employees: 11-50 | Leeds, United Kingdom | 11-50 | Exact match | 16 contacts → |
“Synap is a leading online learning and exam platform that empowers organisations to deliver secure online training and assessments.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Certify Assessment Solutionscertifyassessment.com HQ: Manchester, United KingdomReported employees: 1-10 | Manchester, United Kingdom | 1-10 | Exact match | 15 contacts → |
“Exam fraud is rising.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | ZZISHzzish.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 15 contacts → |
“Zzish is a software company that builds AI data-driven educational software to give teachers superpowers.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | keath.aikeath.ai HQ: Guildford, United KingdomReported employees: 11-50 | Guildford, United Kingdom | 11-50 | Exact match | 14 contacts → |
“The AI Copilot Built for Assessment.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Grademaker LTDgrademaker.com HQ: Cheltenham, United KingdomReported employees: 11-50 | Cheltenham, United Kingdom | 11-50 | Exact match | 11 contacts → |
“GradeMaker's test development technology improves quality, security, and efficiency for high-stakes assessment providers.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | MY Performance Learningmyperformancelearning.com HQ: Mayfair, United KingdomReported employees: 11-50 | Mayfair, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Performance Learning is scientifically proven to accelerate performance, improve outcomes and nurture wellbeing.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Speedwell Softwarespeedwellsoftware.com HQ: Chittering, United KingdomReported employees: 11-50 | Chittering, United Kingdom | 11-50 | Exact match | 9 contacts → |
“Speedwell’s assessment software allows you to run world-class multiple-choice and practical exams (OSCEs).” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Neurosightneurosight.io HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 8 contacts → |
“Conventional online psychometric assessments are time consuming, often inaccurate, biased, and easy to cheat using tools like ChatGPT.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Sentirasentiraxr.com HQ: Manchester, United KingdomReported employees: 1-10 | Manchester, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Sentira develops immersive learning and authentic assessment experiences that help organisations validate real-world capability.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Geektasticgeektastic.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 7 contacts → |
“Human Reviewed Technical Assessments for Scaling Businesses Trusted by the world’s fastest growing businesses to cut time to hire by 50%, we deliver your technical assessment…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | quodit.ioquodit.io HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“We envision a world where anyone, anywhere can transform their life by accessing the world’s best data collection experience.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Assessment and testing platform developers: dataset insights
September 27, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
80 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 80 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 27, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for assessment and testing platform developers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many assessment and testing platform developers did RevenueBase find based in the United Kingdom?
The saved snapshot records 80 matching company records, 1,491 tracked contacts and 548 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 27, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 assessment and testing platform developers based in the United Kingdom. Snapshot: September 27, 2026. https://revenuebase.ai/companies/assessment-and-testing-platform-developers/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Assessment and testing platform developers based in Brazil
- Assessment and testing platform developers based in Canada
- Assessment and testing platform developers based in France
- Assessment and testing platform developers based in India
- Assessment and testing platform developers based in the Netherlands
- Assessment and testing platform developers based in the United States