Company lists · Data refreshed September 2026

Top 25 Contractor erp software companies based in the United States

Name: Contractor erp software companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 379 companies tracked

RevenueBase identified 379 contractor erp software companies headquartered in the United States as of September 2026 and tracks 10,892 professional contacts across them, including 5,480 with verified work emails. New York is the largest hub.

This list covers contractor erp software companies headquartered in the 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 21, 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 21, 2026 86% judged on-target in blind review

379Companies

10,892Contacts tracked

5,480Verified emails

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The 25 largest contractor erp software companies based in the United States

Ranked by team size

Top 25 of 379 contractor erp software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to contractor erp software companies: 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	ECI Software Solutions	Partial evidence	Westlake, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,411 contacts →
	Partial evidence “For 25+ years, ECI has helped businesses around the world grow with industry-specific, cloud-based ERP.” Source: RevenueBase Database · checked Sep 21, 2026
2	HCSS	Partial evidence	Sugar Land, TX, United StatesHQ checked Sep 21, 2026	201-500	645 contacts →
	Partial evidence “Since 1986, HCSS been developing software to help construction companies streamline their operations.” Source: RevenueBase Database · checked Sep 21, 2026
3	Ineight	Partial evidence	Scottsdale, AZ, United StatesHQ checked Sep 21, 2026	501-1,000	478 contacts →
	Partial evidence “InEight is a leader in construction project controls software, empowering over 850 companies taking on challenging projects in industries including construction and engineering…” Source: RevenueBase Database · checked Sep 21, 2026
4	Unanet	Strong evidence	Dulles, VA, United StatesHQ checked Sep 21, 2026	201-500	459 contacts →
	Strong evidence “Unanet is a leading provider of ERP and CRM solutions purpose-built for Government Contractors, AEC, and Professional Services.” Source: RevenueBase Database · checked Sep 21, 2026
5	BQE Software	Indirect evidence	West Hollywood, CA, United StatesHQ checked Sep 21, 2026	201-500	398 contacts →
	Indirect evidence “Helping architects and engineers run more profitable businesses.” Source: RevenueBase Database · checked Sep 21, 2026
6	Trimble Viewpoint	Indirect evidence	Westminster, CO, United StatesHQ checked Sep 21, 2026	501-1,000	321 contacts →
	Indirect evidence “Dedicated to the world’s tomorrow, Trimble is a technology company delivering solutions that enable our customers to work in new ways to measure, build, grow and move goods for a…” Source: RevenueBase Database · checked Sep 21, 2026
7	Foundation Software	Strong evidence	Strongsville, OH, United StatesHQ checked Sep 21, 2026	201-500	312 contacts →
	Strong evidence “Since 1985, Foundation Software has been helping contractors run the business side of construction with software and services built for the entire project lifecycle.” Source: RevenueBase Database · checked Sep 21, 2026
8	Hyphen Solutions	Partial evidence	Dallas, TX, United StatesHQ checked Sep 21, 2026	201-500	222 contacts →
	Partial evidence “Hyphen Solutions has been providing industry-leading construction management software to Home Builders, Suppliers and Manufacturers since By utilizing technology, Builders and…” Source: RevenueBase Database · checked Sep 21, 2026
9	Terillium	Strong evidence	Cincinnati, OH, United StatesHQ checked Sep 21, 2026	201-500	210 contacts →
	Strong evidence “There’s a reason over businesses have selected Terillium for ERP software implementations, upgrades, managed services, and strategic assessments.” Source: RevenueBase Database · checked Sep 21, 2026
10	Newforma	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	201-500	192 contacts →
	Partial evidence “Newforma provides Information Management and collaboration software for the Architecture, Engineering, Construction, and Owner/Operator (AECO) industry.” Source: RevenueBase Database · checked Sep 21, 2026
11	Construction Industry Solutions Coins	Partial evidence	Latham, NY, United StatesHQ checked Sep 21, 2026	201-500	192 contacts →
	Partial evidence “Access COINS provides end-to-end construction software solutions.” Source: RevenueBase Database · checked Sep 21, 2026
12	LEAP	Partial evidence	Columbia, MD, United StatesHQ checked Sep 21, 2026	51-200	184 contacts →
	Partial evidence “Leap is the complete platform for the professional contractor.” Source: RevenueBase Database · checked Sep 21, 2026
13	WIA Systems INC	Partial evidence	Pearland, TX, United StatesHQ checked Sep 21, 2026	51-200	177 contacts →
	Partial evidence “WIA Systems is a global professional services company, providing comprehensive ERP services & solutions in Consulting, Implementation, Upgrades, Training, 24x7 Support and Staff…” Source: RevenueBase Database · checked Sep 21, 2026
14	VAI Vormittag Associates, INC	Strong evidence	Ronkonkoma, NY, United StatesHQ checked Sep 21, 2026	201-500	153 contacts →
	Strong evidence “VAI Company Overview VAI is a leading independent mid-market ERP software developer renowned for its flexible solutions and ability to automate critical business functions for the…” Source: RevenueBase Database · checked Sep 21, 2026
15	Stack Construction Technologies	Strong evidence	Cincinnati, OH, United StatesHQ checked Sep 21, 2026	51-200	151 contacts →
	Strong evidence “From project evaluation to completion, contractors use STACK’s cloud-based software to help run their business and maximize their profits.” Source: RevenueBase Database · checked Sep 21, 2026
16	WM Synergy	Strong evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	51-200	149 contacts →
	Strong evidence “At WM Synergy, we empower manufacturers and distributors with world-class ERP software, support, and services designed to drive efficiency and growth.” Source: RevenueBase Database · checked Sep 21, 2026
17	Moca Systems, INC	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	51-200	141 contacts →
	Partial evidence “MOCA Systems, Inc.(MSI) was founded in as an outgrowth of MIT research in construction simulation and planning, with a mission to develop and deliver services and software…” Source: RevenueBase Database · checked Sep 21, 2026
18	Alliance Solutions Group	Indirect evidence	Sarasota, FL, United StatesHQ checked Sep 21, 2026	51-200	131 contacts →
	Indirect evidence “Alliance Solutions Group is the leading provider of technology solutions built exclusively for the construction and real estate industry.” Source: RevenueBase Database · checked Sep 21, 2026
19	D-Tools INC	Indirect evidence	Concord, CA, United StatesHQ checked Sep 21, 2026	51-200	110 contacts →
	Indirect evidence “D-Tools, Inc.” Source: RevenueBase Database · checked Sep 21, 2026
20	Calsoft Systems	Partial evidence	Torrance, CA, United StatesHQ checked Sep 21, 2026	51-200	107 contacts →
	Partial evidence “Since 1994, Calsoft Systems has been a leading provider of ERP solutions, serving clients from local businesses to renowned corporations worldwide.” Source: RevenueBase Database · checked Sep 21, 2026
21	Redteam	Strong evidence	Orlando, FL, United StatesHQ checked Sep 21, 2026	51-200	100 contacts →
	Strong evidence “Construction software built for contractors, by contractors.” Source: RevenueBase Database · checked Sep 21, 2026
22	Jamis Software Corporation	Partial evidence	Boulder, CO, United StatesHQ checked Sep 21, 2026	51-200	94 contacts →
	Partial evidence “Government contractors deserve technology solutions that improve how they serve their federal customers, not get in the way.” Source: RevenueBase Database · checked Sep 21, 2026
23	CEM Business Solutions	Partial evidence	Woodcliff Lake, NJ, United StatesHQ checked Sep 21, 2026	51-200	88 contacts →
	Partial evidence “CEM provides clients with unified ERP solutions as well as integrated solutions for Construction, Project management, HR, and construction payroll.” Source: RevenueBase Database · checked Sep 21, 2026
24	Decision Resources	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 21, 2026	51-200	81 contacts →
	Partial evidence “Decision Resources is the #1 Gold Infor CloudSuite Industrial (SyteLine) ERP implementation partner in the US with over 40 years of manufacturing expertise.” Source: RevenueBase Database · checked Sep 21, 2026
25	SKY Systemz	Partial evidence	Lexington, KY, United StatesHQ checked Sep 21, 2026	51-200	80 contacts →
	Partial evidence “Sky Systemz is a software company providing SkyOS, a business operating system built for the construction and heavy building materials industry.” Source: RevenueBase Database · checked Sep 21, 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: contractor erp software companies. 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 contractor erp software companies.
Partial evidence: Its own public description names part of contractor erp software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name contractor erp software companies. 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 25 of 379 contractor erp software companies based in the United States

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Contractor erp software companies based in the United States at a glance

As of Sep 21, 2026

50.3%Verified-email coverage

28.7Average contacts per company

11-50Median size (employees)

2.4%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

146

11-50

157

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 379 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 contractor erp software companies, 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 the United States whose own description of what they do matches “contractor erp software companies”. 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 contractor erp software companies), 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 contractor erp software companies, and records with no verified work email. Companies headquartered outside United States 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, 5,480 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 21, 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.

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 contractor erp software companies, 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 contractor erp software companies are there based in the United States?

RevenueBase identified 379 contractor erp software companies headquartered in the 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?

ECI Software Solutions, headquartered in Westlake, tops this list with the largest team on record.

Which city has the most contractor erp software companies?

New York leads with 9 headquartered companies, followed by Austin (8) and Dallas (8).

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 5,480 verified decision-maker contacts tracked across these 379 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 21, 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.