Company lists · Data refreshed November 2026

Top 23 Ibm iseries developers based in the United States

RevenueBase identified 261 company matches for ibm iseries developers associated with the United States as of November 2026 and tracks 4,547 professional contacts across them, including 1,172 with verified work emails. New York is the largest hub.

This list covers company matches for ibm iseries developers associated with the United States, 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 November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
261Companies
4,547Contacts tracked
1,172Verified emails
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The 23 largest ibm iseries developers based in the United States

Ranked by team size
Top 23 of 261 company matches for ibm iseries developers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchDallas, TX, United StatesHQ recorded Nov 6, 20261,001-5,0001,063 contacts →

Exact match

“IBM i is evolving.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLombard, IL, United StatesHQ recorded Nov 6, 2026201-500302 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchPrinceton, NJ, United StatesHQ recorded Nov 6, 2026201-500152 contacts →

Exact match

“Software Technology, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchPeoria, IL, United StatesHQ recorded Nov 6, 202651-20078 contacts →

Exact match

“At CSE Software, we’ve been at the forefront of innovation for over 30 years, delivering strategic software solutions across every major tech evolution, from legacy systems to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchDayton, MS, United StatesHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“We've been leading IBM i Futurization since Profound Logic is the only IBM i technology partner that takes you beyond modernization and into AI-enhanced futurization, empowering…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMission Hills, CA, United StatesHQ recorded Nov 6, 202611-5048 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchParsippany, NJ, United StatesHQ recorded Nov 6, 202651-20048 contacts →

Exact match

“The Casey Group (TCG) is an award winning company and a provider of business and technology solutions since 1989.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchCumming, GA, United StatesHQ recorded Nov 6, 202651-20047 contacts →

Exact match

“The name Apeiro is derived from the ancient Greek word for infinite or boundless and encompasses our methodology for how we work with our clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchEl Paso, TX, United StatesHQ recorded Nov 6, 202651-20045 contacts →

Exact match

“Formed in 2004, Steele Consulting Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchChicago, IL, United StatesHQ recorded Nov 6, 202611-5045 contacts →

Exact match

“Transform the way work gets done.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMarietta, GA, United StatesHQ recorded Nov 6, 202651-20037 contacts →

Exact match

“Abacus, a business unit of Fresche Solutions, is a premier global provider of AS/400 focused cloud, managed services, and hardware.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSacramento, CA, United StatesHQ recorded Nov 6, 202611-5036 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 · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLivonia, MI, United StatesHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“IBM i (AS/400)+ integrations are our bread and butter!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchGreensboro, PA, United StatesHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“SabreTooth Technologies is an independent, privately owned software systems and support business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSunrise, FL, United StatesHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Insurance Technologies is a US-based, fully stacked custom software development company, that offers digital business solutions for any size enterprise.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchWestchester, IL, United StatesHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“Silveredge Consulting provides IT consulting for Enterprise Resource Planning (ERP) software in the IBM i and associated environments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchHarrisburg, PA, United StatesHQ recorded Nov 6, 202651-20027 contacts →

Exact match

“Collabrium Systems, LLC provides systems integration services that include design, development, testing, implementation and support of business applications.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSchaumburg, IL, United StatesHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“BSoft Solutions is an IT consulting firm providing custom application development, system integration and business process redesign to dramatically improve customer satisfaction…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“With our years at Apple, we don’t fall far from the tree.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchDover, PA, United StatesHQ recorded Nov 6, 20261-1025 contacts →

Exact match

“Inspire Technologies, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchCapitola, CA, United StatesHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“Since 1978, Trident Services has established a solid reputation for the excellence of its developed software, responsiveness of its support team and the expertise of its…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLake Forest, CA, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“On December 1, 2016 Sirius Computer Solutions acquired California-based IT solutions provider, thinkASG.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchPembroke Pines, FL, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Mertech is a leading provider of application development solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 23 of 261 ibm iseries developers based in the United States

See the full list, filter by size, metro and specialty, and access 1,172 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ibm iseries developers based in the United States at a glance

As of Nov 6, 2026
25.8%Verified-email coverage
17.4Average contacts per company
1-10Median size (employees)
3.1%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
147
11-50
79
51-200
26
201-500
2
501-1,000
2
1,001-5,000
4
5,001-10,000
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 261 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 States 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. 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 1,172 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 November 6, 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 “ibm iseries developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ibm iseries developers are there based in the United States?

RevenueBase identified 261 company matches for ibm iseries developers associated with the United States as of November 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 city has the most ibm iseries developers?

New York leads with 8 company records, followed by Chicago (6) and Atlanta (5).

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 1,172 professional contacts with verified work emails tracked across these 261 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 November 6, 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.