Company lists · Data refreshed September 2026
Top 25 Functional programming developers worldwide
RevenueBase identified 127 company matches for functional programming developers worldwide as of September 2026 and tracks 785 professional contacts across them, including 218 with verified work emails. The United Kingdom is the largest market and London the largest hub.
This list covers company matches for functional programming developers worldwide, 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. Country and city lists for functional programming developers follow the table.
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 functional programming developers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 105 contacts → | ||||
Exact match “Arolla est une société de conseil spécialisée dans les techniques les plus avancées de développement logiciel : Clean Code, TDD, BDD, Legacy Remediation, style de Programmation…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 87 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 | |||||
| 3 | 56 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 | |||||
| 4 | 38 contacts → | ||||
Exact match “Research and development company in which the main emphasis is on the use of Haskell and other functional languages.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 28 contacts → | ||||
Exact match “Quanterall is an R&D Lab for software and hardware.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 22 contacts → | ||||
Exact match “We build software that lasts.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 20 contacts → | ||||
Exact match “Habla Computing is a functional architecture studio that helps companies to leverage functional programming languages, libraries, and design patterns.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 17 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 | |||||
| 9 | 16 contacts → | ||||
Exact match “Scalamandra is a remote-first company with representation in US and EU.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 13 contacts → | ||||
Exact match “Flipstone is a boutique software services consultancy and startup incubator.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 12 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 | |||||
| 12 | 11 contacts → | ||||
Exact match “We are Codewits.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 11 contacts → | ||||
Exact match “Software development.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 10 contacts → | ||||
Exact match “Platonic.Systems uses functional programming techniques to guarantee that your application is fit for purpose.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 10 contacts → | ||||
Exact match “At Artima, we're passionate about Scala.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 9 contacts → | ||||
Exact match “Active Group develops your software, using leading-edge software-engineering and programming-language technologies.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 7 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 | |||||
| 18 | 6 contacts → | ||||
Exact match “Mollyware was founded 2013.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 6 contacts → | ||||
Exact match “CORVID provides Software Development Consultancy services ranging from designing, programming and implementing software to advisement and quality assurance.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 4 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 4 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 | |||||
| 22 | 3 contacts → | ||||
Exact match “Full Join is at the intersection of innovation and reliability in the software development landscape.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 3 contacts → | ||||
Exact match “An experienced team of software engineers capable of delivering even most challenging products.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 3 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 3 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 | |||||
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 “functional programming 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 127 functional programming developers worldwide
See the full list, filter by size, metro and specialty, and access 218 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Functional programming developers worldwide at a glance
As of Sep 20, 2026Companies by employee count
Email recency is reported on each country list linked below.
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.
- Coverage
- Every country. Country and city lists for functional programming developers are linked below.
- What qualifies
- Company records worldwide 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. 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 218 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.
Functional programming developers by location
1 lists · largest firstEvery Functional programming developers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 worldwide?
RevenueBase identified 127 company matches for functional programming developers worldwide 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?
Arolla tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most functional programming developers?
The United Kingdom leads with 25 companies. Every functional programming developers list by country and city is linked on this page.
Which city has the most functional programming developers?
London leads with 15 company records, followed by Paris (4) and Stockholm (4).
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 218 professional contacts with verified work emails tracked across these 127 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.
Ready to reach these companies? Verified emails and direct dials for all 127 functional programming developers worldwide. Start with a free account, no credit card.
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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.
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Company intelligence · public preview
Top 25 functional programming developers worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 127 matching company records for functional programming developers worldwide, with 785 tracked contacts and 218 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 20, 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 functional programming developers worldwide
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 |  Arollaarolla.frHQ: Paris, FranceReported employees: 51-200 | Paris, France | 51-200 | Exact match | 105 contacts → |
“Arolla est une société de conseil spécialisée dans les techniques les plus avancées de développement logiciel : Clean Code, TDD, BDD, Legacy Remediation, style de Programmation…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  JUXTjuxt.proHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 87 contacts → |
“JUXT joins forces with Grid Dynamics, JUXT is a cutting-edge software consultancy that delivers innovation to large enterprises and high-performing organisations.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  MLABSmlabs.cityHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 56 contacts → |
“MLabs Consulting helps to setup project specification, implementation, management and maintenance of technical projects for AI, Fintech, Information Technology and more.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Serokellserokell.io HQ: Paris, EstoniaReported employees: 51-200 | Paris, Estonia | 51-200 | Exact match | 38 contacts → |
“Research and development company in which the main emphasis is on the use of Haskell and other functional languages.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Quanterallquanterall.com HQ: Varna, BulgariaReported employees: 51-200 | Varna, Bulgaria | 51-200 | Exact match | 28 contacts → |
“Quanterall is an R&D Lab for software and hardware.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Typeabletypeable.io HQ: Moscow, RussiaReported employees: 11-50 | Moscow, Russia | 11-50 | Exact match | 22 contacts → |
“We build software that lasts.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Habla Computinghablapps.com HQ: Leganés, SpainReported employees: 11-50 | Leganés, Spain | 11-50 | Exact match | 20 contacts → |
“Habla Computing is a functional architecture studio that helps companies to leverage functional programming languages, libraries, and design patterns.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Well-Typed LLPwell-typed.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 17 contacts → |
“Our clients use Haskell in their business to gain a competitive advantage.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Scalamandra, A Fiverr Company Nyse Fvrrscalamandra.comHQ: Tallinn, EstoniaReported employees: 11-50 | Tallinn, Estonia | 11-50 | Exact match | 16 contacts → |
“Scalamandra is a remote-first company with representation in US and EU.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Flipstone Technology Partners, INCflipstone.comHQ: Austin, United StatesReported employees: 11-50 | Austin, United States | 11-50 | Exact match | 13 contacts → |
“Flipstone is a boutique software services consultancy and startup incubator.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | JHJ Technologyjhj.ltd HQ: Birmingham, United KingdomReported employees: 1-10 | Birmingham, United Kingdom | 1-10 | Exact match | 12 contacts → |
“JHJ is a small software development and consultancy firm specialising in Clojure,"devops", and rapid MVP prototyping.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Codewits Solutions Pvt. LTDcodewits.inHQ: Pune, IndiaReported employees: 11-50 | Pune, India | 11-50 | Exact match | 11 contacts → |
“We are Codewits.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Filabsfilabs.dev HQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 11 contacts → |
“Software development.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | platonic.systemsplatonic.systems HQ: Firestone, CO, United StatesReported employees: 1-10 | Firestone, CO, United States | 1-10 | Exact match | 10 contacts → |
“Platonic.Systems uses functional programming techniques to guarantee that your application is fit for purpose.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Artima, INCartima.com HQ: Walnut Creek, CA, United StatesReported employees: 11-50 | Walnut Creek, CA, United States | 11-50 | Exact match | 10 contacts → |
“At Artima, we're passionate about Scala.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Active Group Gmbhactive-group.de HQ: Tübingen, GermanyReported employees: 11-50 | Tübingen, Germany | 11-50 | Exact match | 9 contacts → |
“Active Group develops your software, using leading-edge software-engineering and programming-language technologies.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Greenlord Studiosgreenlordstudios.co.uk HQ: Middlesbrough, United KingdomReported employees: 1-10 | Middlesbrough, United Kingdom | 1-10 | Exact match | 7 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Mollywaremollyware.se HQ: SwedenReported employees: 1-10 | Sweden | 1-10 | Exact match | 6 contacts → |
“Mollyware was founded 2013.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Corvidcorvid.nl HQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 6 contacts → |
“CORVID provides Software Development Consultancy services ranging from designing, programming and implementing software to advisement and quality assurance.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Barnard & Leipold Softwaretechnik Gmbhsoftwaretechnik.berlin HQ: Berlin, GermanyReported employees: 1-10 | Berlin, Germany | 1-10 | Exact match | 4 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | Pixelated Noisepixelated-noise.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 4 contacts → |
“Pixelated Noise is a forward-looking software consultancy.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Full Joinfulljoin.nl HQ: Eindhoven, NetherlandsReported employees: 1-10 | Eindhoven, Netherlands | 1-10 | Exact match | 3 contacts → |
“Full Join is at the intersection of innovation and reliability in the software development landscape.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Digital Magic LTDdigital-magic.io HQ: Tallinn, EstoniaReported employees: 1-10 | Tallinn, Estonia | 1-10 | Exact match | 3 contacts → |
“An experienced team of software engineers capable of delivering even most challenging products.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Defsquaredefsquare.io HQ: Paris, FranceReported employees: 1-10 | Paris, France | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | Underscoreunderscore.io HQ: Brighton, United KingdomReported employees: 11-50 | Brighton, United Kingdom | 11-50 | Exact match | 3 contacts → |
“Software development consultancy specialising in the Scala programming language.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 127 company matches
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Functional programming developers: dataset insights
September 20, 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
126 records in the displayed employee bands.
1 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 127 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 20, 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 ↗
Functional programming developers by location
1 lists · largest firstEvery Functional programming developers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for functional programming 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 functional programming developers did RevenueBase find worldwide?
The saved snapshot records 127 matching company records, 785 tracked contacts and 218 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 20, 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 functional programming developers worldwide. Snapshot: September 20, 2026. https://revenuebase.ai/companies/browse/functional-programming-developers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 functional programming developers worldwide
RevenueBase records 127 matching company records for functional programming developers worldwide, with 785 tracked contacts and 218 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 20, 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 functional programming developers worldwide
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 | Arollaarolla.fr HQ: Paris, FranceReported employees: 51-200 | Paris, France | 51-200 | Exact match | 105 contacts → |
“Arolla est une société de conseil spécialisée dans les techniques les plus avancées de développement logiciel : Clean Code, TDD, BDD, Legacy Remediation, style de Programmation…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | JUXTjuxt.pro HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 87 contacts → |
“JUXT joins forces with Grid Dynamics, JUXT is a cutting-edge software consultancy that delivers innovation to large enterprises and high-performing organisations.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | MLABSmlabs.city HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 56 contacts → |
“MLabs Consulting helps to setup project specification, implementation, management and maintenance of technical projects for AI, Fintech, Information Technology and more.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Serokellserokell.io HQ: Paris, EstoniaReported employees: 51-200 | Paris, Estonia | 51-200 | Exact match | 38 contacts → |
“Research and development company in which the main emphasis is on the use of Haskell and other functional languages.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Quanterallquanterall.com HQ: Varna, BulgariaReported employees: 51-200 | Varna, Bulgaria | 51-200 | Exact match | 28 contacts → |
“Quanterall is an R&D Lab for software and hardware.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Typeabletypeable.io HQ: Moscow, RussiaReported employees: 11-50 | Moscow, Russia | 11-50 | Exact match | 22 contacts → |
“We build software that lasts.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Habla Computinghablapps.com HQ: Leganés, SpainReported employees: 11-50 | Leganés, Spain | 11-50 | Exact match | 20 contacts → |
“Habla Computing is a functional architecture studio that helps companies to leverage functional programming languages, libraries, and design patterns.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Well-Typed LLPwell-typed.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 17 contacts → |
“Our clients use Haskell in their business to gain a competitive advantage.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Scalamandra, A Fiverr Company Nyse Fvrrscalamandra.com HQ: Tallinn, EstoniaReported employees: 11-50 | Tallinn, Estonia | 11-50 | Exact match | 16 contacts → |
“Scalamandra is a remote-first company with representation in US and EU.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Flipstone Technology Partners, INCflipstone.com HQ: Austin, United StatesReported employees: 11-50 | Austin, United States | 11-50 | Exact match | 13 contacts → |
“Flipstone is a boutique software services consultancy and startup incubator.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | JHJ Technologyjhj.ltd HQ: Birmingham, United KingdomReported employees: 1-10 | Birmingham, United Kingdom | 1-10 | Exact match | 12 contacts → |
“JHJ is a small software development and consultancy firm specialising in Clojure,"devops", and rapid MVP prototyping.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Codewits Solutions Pvt. LTDcodewits.in HQ: Pune, IndiaReported employees: 11-50 | Pune, India | 11-50 | Exact match | 11 contacts → |
“We are Codewits.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Filabsfilabs.dev HQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 11 contacts → |
“Software development.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | platonic.systemsplatonic.systems HQ: Firestone, CO, United StatesReported employees: 1-10 | Firestone, CO, United States | 1-10 | Exact match | 10 contacts → |
“Platonic.Systems uses functional programming techniques to guarantee that your application is fit for purpose.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Artima, INCartima.com HQ: Walnut Creek, CA, United StatesReported employees: 11-50 | Walnut Creek, CA, United States | 11-50 | Exact match | 10 contacts → |
“At Artima, we're passionate about Scala.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Active Group Gmbhactive-group.de HQ: Tübingen, GermanyReported employees: 11-50 | Tübingen, Germany | 11-50 | Exact match | 9 contacts → |
“Active Group develops your software, using leading-edge software-engineering and programming-language technologies.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Greenlord Studiosgreenlordstudios.co.uk HQ: Middlesbrough, United KingdomReported employees: 1-10 | Middlesbrough, United Kingdom | 1-10 | Exact match | 7 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Mollywaremollyware.se HQ: SwedenReported employees: 1-10 | Sweden | 1-10 | Exact match | 6 contacts → |
“Mollyware was founded 2013.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Corvidcorvid.nl HQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 6 contacts → |
“CORVID provides Software Development Consultancy services ranging from designing, programming and implementing software to advisement and quality assurance.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Barnard & Leipold Softwaretechnik Gmbhsoftwaretechnik.berlin HQ: Berlin, GermanyReported employees: 1-10 | Berlin, Germany | 1-10 | Exact match | 4 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | Pixelated Noisepixelated-noise.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 4 contacts → |
“Pixelated Noise is a forward-looking software consultancy.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Full Joinfulljoin.nl HQ: Eindhoven, NetherlandsReported employees: 1-10 | Eindhoven, Netherlands | 1-10 | Exact match | 3 contacts → |
“Full Join is at the intersection of innovation and reliability in the software development landscape.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Digital Magic LTDdigital-magic.io HQ: Tallinn, EstoniaReported employees: 1-10 | Tallinn, Estonia | 1-10 | Exact match | 3 contacts → |
“An experienced team of software engineers capable of delivering even most challenging products.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Defsquaredefsquare.io HQ: Paris, FranceReported employees: 1-10 | Paris, France | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | Underscoreunderscore.io HQ: Brighton, United KingdomReported employees: 11-50 | Brighton, United Kingdom | 11-50 | Exact match | 3 contacts → |
“Software development consultancy specialising in the Scala programming language.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 127 company matches
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Functional programming developers: dataset insights
September 20, 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
126 records in the displayed employee bands.
1 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 127 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 20, 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 ↗
Functional programming developers by location
1 lists · largest firstEvery Functional programming developers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for functional programming 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 functional programming developers did RevenueBase find worldwide?
The saved snapshot records 127 matching company records, 785 tracked contacts and 218 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 20, 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
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Cite this list
RevenueBase Data Team. Top 25 functional programming developers worldwide. Snapshot: September 20, 2026. https://revenuebase.ai/companies/browse/functional-programming-developers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗