Company lists · Data refreshed September 2026
Top 25 Ibm iseries developers worldwide
RevenueBase identified 405 company matches for ibm iseries developers worldwide as of September 2026 and tracks 4,323 professional contacts across them, including 1,293 with verified work emails. The United States is the largest market and Paris the largest hub.
This list covers company matches for ibm iseries 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 ibm iseries 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 ibm iseries developers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,056 contacts → | ||||
Exact match “IBM i is evolving.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 275 contacts → | ||||
Exact match “Founded in 2001, Integrative Systems is a strategic IT solutions and services company helping organizations futureproof their business through technology, innovation, and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 104 contacts → | ||||
Exact match “Nous accompagnons nos clients dans la conception, le développement et l’évolution de leurs systèmes d’information.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 72 contacts → | ||||
Exact match “ASSIST spol.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 64 contacts → | ||||
Exact match “Armonie: a range of human, software and hardware solutions to get the best out of your IBM i – AS/400.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 63 contacts → | ||||
Exact match “ExiSoft es una consultora experta en Integración de Sistemas y Tecnologías, así como en Desarrollo sobre Plataformas Abiertas.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 56 contacts → | ||||
Exact match “APPER® – IT för effektiv verksamhet Vi är erfarna It-konsulter som erbjuder tjänster inom utveckling, utbildning och förvaltning till företag.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 54 contacts → | ||||
Exact match “Headquartered in the UK, Vertali has a long and distinctive pedigree providing IBM mainframe services, skills and software to organizations around the world.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 49 contacts → | ||||
Exact match “Welcome to Visual Technologies Visual Technologies was established in 2012 to provide a total solutions integration service for clients nationwide.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 45 contacts → | ||||
Exact match “The UNICOM Systems Technology Division delivers world-class CICS automation and z/OS and z/VM software solutions to IBM Z customers globally, integration services and solutions to…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 42 contacts → | ||||
Exact match “With over 35 years of experience, we are a leading provider of IT software solutions, based in Hampshire, UK.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 39 contacts → | ||||
Exact match “Transform the way work gets done.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 36 contacts → | ||||
Exact match “In 1982, we founded Lusodata out of a desire to develop innovative IT solutions that meet the evolving needs of people and organizations.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 36 contacts → | ||||
Exact match “ASNA is a leading authority in the modernization, extension, and migration of IBM i RPG assets.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 35 contacts → | ||||
Exact match “New Generation Software, Inc.(NGS) develops, markets, and supports IBM i (iSeries, System i, AS/400) business application software used by companies of all sizes and representing…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 34 contacts → | ||||
Exact match “Nuestra especialización: • Soluciones para la gestión de Data Center • RPA, Automatización de Procesos • Desarrollo e integración de software de alta complejidad y alto…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 33 contacts → | ||||
Exact match “ACS LTD is 30 years old company which had introduced IBM maninframes and AS400 and the company has been into IT Solution,Services and Products.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 32 contacts → | ||||
Exact match “IBM i (AS/400)+ integrations are our bread and butter!” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 32 contacts → | ||||
Exact match “Since 1995 Flynet have been building some of the industry's most sophisticated web based solutions for Mainframe, Unix, IBM i, VMS, VAX and MultiValue systems.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 31 contacts → | ||||
Exact match “Nous sommes des experts en #IBMi depuis plus de 30 ans.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 29 contacts → | ||||
Exact match “Headquartered in Montreal, Quebec, we have provided quality information technology services to businesses of all sizes, in a wide variety of industries since 1972.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 26 contacts → | ||||
Exact match “Future-proof your IBM i applications with our team of Support & Development specialists.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 25 contacts → | ||||
Exact match “EasiRun is a European global provider of products, tools and solutions for software and software development with a focus on modernizing COBOL applications and development…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 24 contacts → | ||||
Exact match “We develop integrated information systems to be used in companies with modules that are customized according to the customer’s wishes.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 23 contacts → | ||||
Exact match “We are specialized in innovating IBM i applications and building new innovative IBM i applications.” 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 “ibm iseries 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 405 ibm iseries developers worldwide
See the full list, filter by size, metro and specialty, and access 1,293 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Ibm iseries 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 ibm iseries developers are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “ibm iseries 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 1,293 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.
Ibm iseries developers by location
2 lists · largest firstEvery Ibm iseries 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 “ibm iseries developers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many ibm iseries developers are there worldwide?
RevenueBase identified 405 company matches for ibm iseries 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?
programmers.io tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most ibm iseries developers?
The United States leads with 98 companies, followed by the United Kingdom (31). Every ibm iseries developers list by country and city is linked on this page.
Which city has the most ibm iseries developers?
Paris leads with 5 company records, followed by Stockholm (4) and Atlanta (3).
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 1,293 professional contacts with verified work emails tracked across these 405 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
Company intelligence · public preview
Top 25 ibm iseries 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 405 matching company records for ibm iseries developers worldwide, with 4,323 tracked contacts and 1,293 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 ibm iseries 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 |  programmers.ioprogrammers.ioHQ: Dallas, TX, United StatesReported employees: 1,001-5,000 | Dallas, TX, United States | 1,001-5,000 | Exact match | 1,056 contacts → |
“IBM i is evolving.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Integrative Systemsintegrativesystems.comHQ: Lombard, IL, United StatesReported employees: 201-500 | Lombard, IL, United States | 201-500 | Exact match | 275 contacts → |
“Founded in 2001, Integrative Systems is a strategic IT solutions and services company helping organizations futureproof their business through technology, innovation, and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Ocsi Groupocsigroup.frHQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 104 contacts → |
“Nous accompagnons nos clients dans la conception, le développement et l’évolution de leurs systèmes d’information.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Assistassist.cz HQ: Prague 8, Czech RepublicReported employees: 51-200 | Prague 8, Czech Republic | 51-200 | Exact match | 72 contacts → |
“ASSIST spol.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Armoniearmonie.group HQ: Montpellier, FranceReported employees: 11-50 | Montpellier, France | 11-50 | Exact match | 64 contacts → |
“Armonie: a range of human, software and hardware solutions to get the best out of your IBM i – AS/400.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Exisoftexisoft.com.arHQ: Ciudad Autónoma De Buenos Aires, ArgentinaReported employees: 51-200 | Ciudad Autónoma De Buenos Aires, Argentina | 51-200 | Exact match | 63 contacts → |
“ExiSoft es una consultora experta en Integración de Sistemas y Tecnologías, así como en Desarrollo sobre Plataformas Abiertas.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  APPERapper.comHQ: Göteborg, SwedenReported employees: 51-200 | Göteborg, Sweden | 51-200 | Exact match | 56 contacts → |
“APPER® – IT för effektiv verksamhet Vi är erfarna It-konsulter som erbjuder tjänster inom utveckling, utbildning och förvaltning till företag.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Vertalivertali.comHQ: Bromsgrove B60 3dj, United KingdomReported employees: 11-50 | Bromsgrove B60 3dj, United Kingdom | 11-50 | Exact match | 54 contacts → |
“Headquartered in the UK, Vertali has a long and distinctive pedigree providing IBM mainframe services, skills and software to organizations around the world.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Visual Technologiesvisualitconsulting.comHQ: Plano, TX, United StatesReported employees: 11-50 | Plano, TX, United States | 11-50 | Exact match | 49 contacts → |
“Welcome to Visual Technologies Visual Technologies was established in 2012 to provide a total solutions integration service for clients nationwide.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Unicom Systems, INCunicomsi.com HQ: Mission Hills, CA, United StatesReported employees: 11-50 | Mission Hills, CA, United States | 11-50 | Exact match | 45 contacts → |
“The UNICOM Systems Technology Division delivers world-class CICS automation and z/OS and z/VM software solutions to IBM Z customers globally, integration services and solutions to…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  KFA Connectkfa.co.ukHQ: Ringwood, AustraliaReported employees: 11-50 | Ringwood, Australia | 11-50 | Exact match | 42 contacts → |
“With over 35 years of experience, we are a leading provider of IT software solutions, based in Hampshire, UK.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  CNX Corporationcnxcorp.comHQ: Chicago, IL, United StatesReported employees: 11-50 | Chicago, IL, United States | 11-50 | Exact match | 39 contacts → |
“Transform the way work gets done.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Lusodatalusodata.pt HQ: Alcântara, PortugalReported employees: 11-50 | Alcântara, Portugal | 11-50 | Exact match | 36 contacts → |
“In 1982, we founded Lusodata out of a desire to develop innovative IT solutions that meet the evolving needs of people and organizations.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | ASNAasna.com HQ: Sant Cugat Del Vallès, SpainReported employees: 51-200 | Sant Cugat Del Vallès, Spain | 51-200 | Exact match | 36 contacts → |
“ASNA is a leading authority in the modernization, extension, and migration of IBM i RPG assets.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | NEW Generation Software, INCngsi.com HQ: Sacramento, CA, United StatesReported employees: 11-50 | Sacramento, CA, United States | 11-50 | Exact match | 35 contacts → |
“New Generation Software, Inc.(NGS) develops, markets, and supports IBM i (iSeries, System i, AS/400) business application software used by companies of all sizes and representing…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Software Greenhouseswgreenhouse.comHQ: Barcelona, SpainReported employees: 11-50 | Barcelona, Spain | 11-50 | Exact match | 34 contacts → |
“Nuestra especialización: • Soluciones para la gestión de Data Center • RPA, Automatización de Procesos • Desarrollo e integración de software de alta complejidad y alto…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Tcs,mumbaiacslimited.com HQ: IndiaReported employees: 201-500 | India | 201-500 | Exact match | 33 contacts → |
“ACS LTD is 30 years old company which had introduced IBM maninframes and AS400 and the company has been into IT Solution,Services and Products.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Infoview Systems INCinfoviewsystems.com HQ: Livonia, MI, United StatesReported employees: 51-200 | Livonia, MI, United States | 51-200 | Exact match | 32 contacts → |
“IBM i (AS/400)+ integrations are our bread and butter!” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Flynetflynetviewer.comHQ: Burwell, United KingdomReported employees: 11-50 | Burwell, United Kingdom | 11-50 | Exact match | 32 contacts → |
“Since 1995 Flynet have been building some of the industry's most sophisticated web based solutions for Mainframe, Unix, IBM i, VMS, VAX and MultiValue systems.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Gaia Mini Systemesgaia.frHQ: Lyon, FranceReported employees: 11-50 | Lyon, France | 11-50 | Exact match | 31 contacts → |
“Nous sommes des experts en #IBMi depuis plus de 30 ans.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Liberty & Associateslibertyandassociates.net HQ: CanadaReported employees: 11-50 | Canada | 11-50 | Exact match | 29 contacts → |
“Headquartered in Montreal, Quebec, we have provided quality information technology services to businesses of all sizes, in a wide variety of industries since 1972.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Proximityproximity.co.ukHQ: Leeds, United KingdomReported employees: 11-50 | Leeds, United Kingdom | 11-50 | Exact match | 26 contacts → |
“Future-proof your IBM i applications with our team of Support & Development specialists.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Easirun Europa Gmbheasirun.comHQ: Usingen, GermanyReported employees: 11-50 | Usingen, Germany | 11-50 | Exact match | 25 contacts → |
“EasiRun is a European global provider of products, tools and solutions for software and software development with a focus on modernizing COBOL applications and development…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Alcad D.O.Oalcad.siHQ: Slovenska Bistrica, SloveniaReported employees: 11-50 | Slovenska Bistrica, Slovenia | 11-50 | Exact match | 24 contacts → |
“We develop integrated information systems to be used in companies with modules that are customized according to the customer’s wishes.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  CD Investcdinvest.beHQ: Oostkamp, BelgiumReported employees: 11-50 | Oostkamp, Belgium | 11-50 | Exact match | 23 contacts → |
“We are specialized in innovating IBM i applications and building new innovative IBM i applications.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 405 company matches
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Ibm iseries 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
400 records in the displayed employee bands.
5 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 405 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 ↗
Ibm iseries developers by location
2 lists · largest firstEvery Ibm iseries 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 ibm iseries 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 ibm iseries developers did RevenueBase find worldwide?
The saved snapshot records 405 matching company records, 4,323 tracked contacts and 1,293 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 ibm iseries developers worldwide. Snapshot: September 20, 2026. https://revenuebase.ai/companies/browse/ibm-iseries-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 ibm iseries developers worldwide
RevenueBase records 405 matching company records for ibm iseries developers worldwide, with 4,323 tracked contacts and 1,293 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 ibm iseries 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 | programmers.ioprogrammers.io HQ: Dallas, TX, United StatesReported employees: 1,001-5,000 | Dallas, TX, United States | 1,001-5,000 | Exact match | 1,056 contacts → |
“IBM i is evolving.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Integrative Systemsintegrativesystems.com HQ: Lombard, IL, United StatesReported employees: 201-500 | Lombard, IL, United States | 201-500 | Exact match | 275 contacts → |
“Founded in 2001, Integrative Systems is a strategic IT solutions and services company helping organizations futureproof their business through technology, innovation, and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Ocsi Groupocsigroup.fr HQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 104 contacts → |
“Nous accompagnons nos clients dans la conception, le développement et l’évolution de leurs systèmes d’information.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Assistassist.cz HQ: Prague 8, Czech RepublicReported employees: 51-200 | Prague 8, Czech Republic | 51-200 | Exact match | 72 contacts → |
“ASSIST spol.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Armoniearmonie.group HQ: Montpellier, FranceReported employees: 11-50 | Montpellier, France | 11-50 | Exact match | 64 contacts → |
“Armonie: a range of human, software and hardware solutions to get the best out of your IBM i – AS/400.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Exisoftexisoft.com.ar HQ: Ciudad Autónoma De Buenos Aires, ArgentinaReported employees: 51-200 | Ciudad Autónoma De Buenos Aires, Argentina | 51-200 | Exact match | 63 contacts → |
“ExiSoft es una consultora experta en Integración de Sistemas y Tecnologías, así como en Desarrollo sobre Plataformas Abiertas.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | APPERapper.com HQ: Göteborg, SwedenReported employees: 51-200 | Göteborg, Sweden | 51-200 | Exact match | 56 contacts → |
“APPER® – IT för effektiv verksamhet Vi är erfarna It-konsulter som erbjuder tjänster inom utveckling, utbildning och förvaltning till företag.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Vertalivertali.com HQ: Bromsgrove B60 3dj, United KingdomReported employees: 11-50 | Bromsgrove B60 3dj, United Kingdom | 11-50 | Exact match | 54 contacts → |
“Headquartered in the UK, Vertali has a long and distinctive pedigree providing IBM mainframe services, skills and software to organizations around the world.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Visual Technologiesvisualitconsulting.com HQ: Plano, TX, United StatesReported employees: 11-50 | Plano, TX, United States | 11-50 | Exact match | 49 contacts → |
“Welcome to Visual Technologies Visual Technologies was established in 2012 to provide a total solutions integration service for clients nationwide.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Unicom Systems, INCunicomsi.com HQ: Mission Hills, CA, United StatesReported employees: 11-50 | Mission Hills, CA, United States | 11-50 | Exact match | 45 contacts → |
“The UNICOM Systems Technology Division delivers world-class CICS automation and z/OS and z/VM software solutions to IBM Z customers globally, integration services and solutions to…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | KFA Connectkfa.co.uk HQ: Ringwood, AustraliaReported employees: 11-50 | Ringwood, Australia | 11-50 | Exact match | 42 contacts → |
“With over 35 years of experience, we are a leading provider of IT software solutions, based in Hampshire, UK.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | CNX Corporationcnxcorp.com HQ: Chicago, IL, United StatesReported employees: 11-50 | Chicago, IL, United States | 11-50 | Exact match | 39 contacts → |
“Transform the way work gets done.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Lusodatalusodata.pt HQ: Alcântara, PortugalReported employees: 11-50 | Alcântara, Portugal | 11-50 | Exact match | 36 contacts → |
“In 1982, we founded Lusodata out of a desire to develop innovative IT solutions that meet the evolving needs of people and organizations.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | ASNAasna.com HQ: Sant Cugat Del Vallès, SpainReported employees: 51-200 | Sant Cugat Del Vallès, Spain | 51-200 | Exact match | 36 contacts → |
“ASNA is a leading authority in the modernization, extension, and migration of IBM i RPG assets.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | NEW Generation Software, INCngsi.com HQ: Sacramento, CA, United StatesReported employees: 11-50 | Sacramento, CA, United States | 11-50 | Exact match | 35 contacts → |
“New Generation Software, Inc.(NGS) develops, markets, and supports IBM i (iSeries, System i, AS/400) business application software used by companies of all sizes and representing…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Software Greenhouseswgreenhouse.com HQ: Barcelona, SpainReported employees: 11-50 | Barcelona, Spain | 11-50 | Exact match | 34 contacts → |
“Nuestra especialización: • Soluciones para la gestión de Data Center • RPA, Automatización de Procesos • Desarrollo e integración de software de alta complejidad y alto…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Tcs,mumbaiacslimited.com HQ: IndiaReported employees: 201-500 | India | 201-500 | Exact match | 33 contacts → |
“ACS LTD is 30 years old company which had introduced IBM maninframes and AS400 and the company has been into IT Solution,Services and Products.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Infoview Systems INCinfoviewsystems.com HQ: Livonia, MI, United StatesReported employees: 51-200 | Livonia, MI, United States | 51-200 | Exact match | 32 contacts → |
“IBM i (AS/400)+ integrations are our bread and butter!” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Flynetflynetviewer.com HQ: Burwell, United KingdomReported employees: 11-50 | Burwell, United Kingdom | 11-50 | Exact match | 32 contacts → |
“Since 1995 Flynet have been building some of the industry's most sophisticated web based solutions for Mainframe, Unix, IBM i, VMS, VAX and MultiValue systems.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Gaia Mini Systemesgaia.fr HQ: Lyon, FranceReported employees: 11-50 | Lyon, France | 11-50 | Exact match | 31 contacts → |
“Nous sommes des experts en #IBMi depuis plus de 30 ans.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Liberty & Associateslibertyandassociates.net HQ: CanadaReported employees: 11-50 | Canada | 11-50 | Exact match | 29 contacts → |
“Headquartered in Montreal, Quebec, we have provided quality information technology services to businesses of all sizes, in a wide variety of industries since 1972.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Proximityproximity.co.uk HQ: Leeds, United KingdomReported employees: 11-50 | Leeds, United Kingdom | 11-50 | Exact match | 26 contacts → |
“Future-proof your IBM i applications with our team of Support & Development specialists.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Easirun Europa Gmbheasirun.com HQ: Usingen, GermanyReported employees: 11-50 | Usingen, Germany | 11-50 | Exact match | 25 contacts → |
“EasiRun is a European global provider of products, tools and solutions for software and software development with a focus on modernizing COBOL applications and development…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Alcad D.O.Oalcad.si HQ: Slovenska Bistrica, SloveniaReported employees: 11-50 | Slovenska Bistrica, Slovenia | 11-50 | Exact match | 24 contacts → |
“We develop integrated information systems to be used in companies with modules that are customized according to the customer’s wishes.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | CD Investcdinvest.be HQ: Oostkamp, BelgiumReported employees: 11-50 | Oostkamp, Belgium | 11-50 | Exact match | 23 contacts → |
“We are specialized in innovating IBM i applications and building new innovative IBM i applications.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 405 company matches
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Ibm iseries 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
400 records in the displayed employee bands.
5 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 405 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 ↗
Ibm iseries developers by location
2 lists · largest firstEvery Ibm iseries 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 ibm iseries 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 ibm iseries developers did RevenueBase find worldwide?
The saved snapshot records 405 matching company records, 4,323 tracked contacts and 1,293 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 ibm iseries developers worldwide. Snapshot: September 20, 2026. https://revenuebase.ai/companies/browse/ibm-iseries-developers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗