Company lists · Data refreshed September 2026

Top 24 Software engineering firms based in South Plainfield, United States

Name: Software engineering firms based in South Plainfield, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 42 companies tracked

RevenueBase identified 42 software engineering firms headquartered in South Plainfield, United States as of September 2026 and tracks 1,608 professional contacts across them, including 159 with verified work emails. New York is the largest hub.

This list covers software engineering firms headquartered in South Plainfield, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 2026.

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

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 6, 2026 86% judged on-target in blind review

42Companies

1,608Contacts tracked

159Verified emails

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The 24 largest software engineering firms based in South Plainfield, United States

Ranked by team size

Top 24 of 42 software engineering firms based in South Plainfield, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to software engineering firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Astir IT Solutions, INC	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	201-500	241 contacts →
	“Astir IT Solutions, is a fast growing IT consulting, services, and outsourcing firm.” Source: company website · checked Sep 6, 2026
2	Systechcorp INC	Indirect evidence	South Plainfield, United StatesHQ checked Sep 6, 2026	201-500	223 contacts →
	“SysTechCorp Inc provides leading-edge technology services that empower our clients to meet and exceed their strategic business objectives.” Source: company website · checked Sep 6, 2026
3	Summitworks Technologies	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	201-500	193 contacts →
	“SummitWorks Headquartered in South Plainfield, New Jersey (U.S.), Summitworks, is a global innovation and services company that helps clients digitally transform in the areas of…” Source: company website · checked Sep 6, 2026
4	Ikcon Technologies INC	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	51-200	108 contacts →
	“IKCON Technologies delivers exceptional IT services and solutions that provide clients with definite edge over competitors and promoting highest standards of quality.” Source: company website · checked Sep 6, 2026
5	Reliance Global Services INC	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	501-1,000	100 contacts →
	“Reliance Global Service Is a leading global IT consulting services and solutions company revolutionizing digital transformations.” Source: company website · checked Sep 6, 2026
6	Apex Technology Systems, INC	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	51-200	99 contacts →
	Source: company website · checked Sep 6, 2026
7	US Software Group INC	Partial evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	201-500	89 contacts →
	“US Software Services Group is a leading provider of IT consulting and software services globally.” Source: company website · checked Sep 6, 2026
8	Digital Scripts, INC	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	201-500	57 contacts →
	“Digital Scripts Inc.” Source: company website · checked Sep 6, 2026
9	SVK Technology Solutions INC	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	11-50	55 contacts →
	“SVK Tech is an Information Technology solution provider that fuses Technology and business understanding into one solution.” Source: company website · checked Sep 6, 2026
10	Globex IT Solutions USA	Partial evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	51-200	30 contacts →
	“Globex It Solutions specialize in Software Development, Business Consulting, and IT solutions including Digital Transformation, Data Services, Artificial Intelligence, Business…” Source: company website · checked Sep 6, 2026
11	Allied Business Consulting, INC	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	51-200	29 contacts →
	Source: company website · checked Sep 6, 2026
12	Prosis Technologies INC	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	51-200	28 contacts →
	“Prosis Technologies Inc, provides technology solutions for financial, government & education clients around the globe by leveraging practical experience, strong alliance…” Source: company website · checked Sep 6, 2026
13	Coreits LLC	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	51-200	27 contacts →
	Source: company website · checked Sep 6, 2026
14	Trisync Technologies INC	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	51-200	24 contacts →
	“Trisync is an IT services and solutions providing company based out of the New Jersey.” Source: company website · checked Sep 6, 2026
15	Accodian	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	201-500	22 contacts →
	“Accodian is a provider of innovative Digital Technology services.” Source: company website · checked Sep 6, 2026
16	Cloudone INC	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	201-500	22 contacts →
	Source: company website · checked Sep 6, 2026
17	Technology Concepts Group International Tcgi	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	11-50	20 contacts →
	“TCGi exemplifies our core values as a leading diverse supplier of Advisory and IT Professional Services.” Source: company website · checked Sep 6, 2026
18	Active Alliance	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	201-500	12 contacts →
	“Active Alliance Systems Corporation is an IT consulting and application development company and member of the Astir Family of Companies.” Source: company website · checked Sep 6, 2026
19	Ssgc Technologies	Partial evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	1-10	11 contacts →
	“SSGC Technologies is fast becoming a leading Software Solutions provider to organizations across the globe, specializing in the field of Information Technology.” Source: company website · checked Sep 6, 2026
20	Code ACE Solutions, INC	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	51-200	11 contacts →
	“Code Ace Solutions is a fully integrated IT training, consulting and solutions company, providing product and application development, customization and integration services in…” Source: company website · checked Sep 6, 2026
21	Efortune LLC	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	11-50	6 contacts →
	“eFortune LLC is an IT staffing and consulting company headquartered in Edison, NJ.” Source: company website · checked Sep 6, 2026
22	Techdelegates INC	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	51-200	5 contacts →
	Source: company website · checked Sep 6, 2026
23	Karwell Technologies INC	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	51-200	4 contacts →
	“Karwell is based in New Jersey and is home to a talented group of IT professionals and consultants.” Source: company website · checked Sep 6, 2026
24	Vistrium Solutions LLC	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 6, 2026	51-200	1 contacts →
	“Vistrium Solutions is managed by highly experienced IT professionals with a combined experience of more than 20 years, we take pride in our work and commitment.” Source: company website · checked Sep 6, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: software engineering firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names software engineering firms.
Partial evidence: Its own public description names part of software engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name software engineering firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 24 of 42 software engineering firms based in South Plainfield, United States

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Software engineering firms based in South Plainfield, United States at a glance

As of Sep 6, 2026

9.9%Verified-email coverage

38.3Average contacts per company

51-200Median size (employees)

2535.7%Largest-city concentration · New York

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for South Plainfield, over 42 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among software engineering firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in South Plainfield, United States whose own description of what they do matches “software engineering firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names software engineering firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among software engineering firms, and records with no verified work email. Companies headquartered outside South Plainfield are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 159 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 6, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Software engineering firms by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names software engineering firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many software engineering firms are there based in South Plainfield, United States?

RevenueBase identified 42 software engineering firms headquartered in South Plainfield, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Astir IT Solutions, INC, headquartered in South Plainfield, tops this list with the largest team on record.

Which city has the most software engineering firms?

New York leads with 1065 headquartered companies, followed by Houston (648) and Austin (633).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 159 verified decision-maker contacts tracked across these 42 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 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 Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.