Company lists · Data refreshed September 2026

Top 25 Gis services companies based in the United States

Name: Gis services 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 20, 2026 828 companies tracked

RevenueBase identified 828 gis services companies headquartered in the United States as of September 2026 and tracks 20,862 professional contacts across them, including 10,215 with verified work emails. Houston is the largest hub.

This list covers gis services 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 20, 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 20, 2026 86% judged on-target in blind review

828Companies

20,862Contacts tracked

10,215Verified emails

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The 25 largest gis services companies based in the United States

Ranked by team size

Top 25 of 828 gis services companies based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to gis services 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	ESRI	Strong evidence	Redlands, CA, United StatesHQ checked Sep 20, 2026	5,001-10,000	6,429 contacts →
	Strong evidence “Esri is the global market leader in geographic information system (GIS) software, location intelligence, and mapping.” Source: RevenueBase Database · checked Sep 20, 2026
2	SAM	Indirect evidence	Austin, TX, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,290 contacts →
	Indirect evidence “SAM has built a reputation as a trusted, knowledgeable, and innovative partner.” Source: RevenueBase Database · checked Sep 20, 2026
3	Timmons Group	Strong evidence	Richmond, VA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,066 contacts →
	Strong evidence “Timmons Group is an engineering & technology firm specializing in civil, environmental, GIS, and surveying services to clients across the US.” Source: RevenueBase Database · checked Sep 20, 2026
4	Nv5 Geospatial	Indirect evidence	Saint Petersburg, FL, United StatesHQ checked Sep 20, 2026	1,001-5,000	682 contacts →
	Indirect evidence “NV5 provides engineering, technology, and consulting services for both public and private sectors.” Source: RevenueBase Database · checked Sep 20, 2026
5	Cyberswift	Indirect evidence	Worthington, OH, United StatesHQ checked Sep 20, 2026	201-500	369 contacts →
	Indirect evidence “CyberSWIFT is an IT services company based in Columbus, Ohio.” Source: RevenueBase Database · checked Sep 20, 2026
6	Topographic, CO	Indirect evidence	Benbrook, TX, United StatesHQ checked Sep 20, 2026	201-500	335 contacts →
	Indirect evidence “What began as a small company in the oilfields of Southern Oklahoma, today Topographic Land Surveyors stands as the industry leader in the fields of Surveying, Mapping…” Source: RevenueBase Database · checked Sep 20, 2026
7	Geospatial Systems	Indirect evidence	Rochester, NY, United StatesHQ checked Sep 20, 2026	1,001-5,000	314 contacts →
	Indirect evidence “ITT's Geospatial Systems Division is now part of Exelis Inc.” Source: RevenueBase Database · checked Sep 20, 2026
8	Encompass Energy Services, LLC	Strong evidence	The Woodlands, TX, United StatesHQ checked Sep 20, 2026	501-1,000	298 contacts →
	Strong evidence “Encompass Services is a professional Survey, Land/ROW, and GIS firm serving the energy, land management, transportation, and infrastructure industries.” Source: RevenueBase Database · checked Sep 20, 2026
9	Avineon	Indirect evidence	Mclean, VA, United StatesHQ checked Sep 20, 2026	1,001-5,000	286 contacts →
	Indirect evidence “Avineon, Inc.” Source: RevenueBase Database · checked Sep 20, 2026
10	Sanborn	Indirect evidence	Colorado Springs, CO, United StatesHQ checked Sep 20, 2026	51-200	257 contacts →
	Indirect evidence “The Sanborn Map Company Inc.(Sanborn) is an innovator in the modern geospatial industry, delivering state-of-the-art mapping, visualization and 3D solutions for customers…” Source: RevenueBase Database · checked Sep 20, 2026
11	Hexagon US Federal	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 20, 2026	201-500	239 contacts →
	Indirect evidence “Hexagon US Federal, formerly Intergraph Government Solutions, has served the United States government for more than four decades.” Source: RevenueBase Database · checked Sep 20, 2026
12	SSP Innovations, LLC	Indirect evidence	Centennial, CO, United StatesHQ checked Sep 20, 2026	201-500	205 contacts →
	Indirect evidence “Today’s energy landscape demands modernized technology that can handle a diverse grid, escalating demand, and unpredictable events.” Source: RevenueBase Database · checked Sep 20, 2026
13	Resource Data	Indirect evidence	Anchorage, AK, United StatesHQ checked Sep 20, 2026	201-500	201 contacts →
	Indirect evidence “Since 1986, Resource Data, Inc.” Source: RevenueBase Database · checked Sep 20, 2026
14	Blew & Associates, P.A	Indirect evidence	Fayetteville, AR, United StatesHQ checked Sep 20, 2026	201-500	189 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
15	Landpoint	Indirect evidence	Fort Worth, TX, United StatesHQ checked Sep 20, 2026	201-500	185 contacts →
	Indirect evidence “Headquartered in Fort Worth, Texas, Landpoint has nine office locations and is licensed to operate in 27 states.” Source: RevenueBase Database · checked Sep 20, 2026
16	Ispatial Techno Solutions IST	Strong evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	51-200	167 contacts →
	Strong evidence “At iSpatial Techno Solutions (IST), we support governments, utilities, and enterprises transform operations through geospatial Intelligence, Enterprise GIS, GeoAI, and Generative…” Source: RevenueBase Database · checked Sep 20, 2026
17	Transglobal Services LLC	Strong evidence	Fort Worth, TX, United StatesHQ checked Sep 20, 2026	201-500	166 contacts →
	Strong evidence “Transglobal Services, LLC (TGS) provides surveying, land services, GIS, mapping, and environmental services to the construction industry.” Source: RevenueBase Database · checked Sep 20, 2026
18	Southeastern Surveying And Mapping Corp	Indirect evidence	Orlando, FL, United StatesHQ checked Sep 20, 2026	51-200	151 contacts →
	Indirect evidence “Founded in Orlando in 1972, SSMC is an independent, 100% employee-owned geospatial services firm providing professional surveying and mapping, subsurface utility engineering…” Source: RevenueBase Database · checked Sep 20, 2026
19	G.E.C., Inc. GEC	Indirect evidence	Baton Rouge, LA, United StatesHQ checked Sep 20, 2026	51-200	134 contacts →
	Indirect evidence “Established in 1986, GEC is a Louisiana-based engineering firm providing complete and proficient services from planning to implementation for private and public clients.” Source: RevenueBase Database · checked Sep 20, 2026
20	WGI Geospatial	Strong evidence	Huntsville, AL, United StatesHQ checked Sep 20, 2026	501-1,000	128 contacts →
	Strong evidence “WGI Geospatial, previously the Atlantic Group, LLC, and now a regional office for WGI, Inc, stands as a premier provider of remote sensing, geodesy, and GIS services across the…” Source: RevenueBase Database · checked Sep 20, 2026
21	Photo Science INC	Indirect evidence	Lexington, KY, United StatesHQ checked Sep 20, 2026	51-200	118 contacts →
	Indirect evidence “Founded in 1974, Photo Science is a geospatial solutions provider specializing in aerial acquisition (imagery & LiDAR), data collection/processing, photogrammetric mapping, mobile…” Source: RevenueBase Database · checked Sep 20, 2026
22	3-Gis	Strong evidence	Huntsville, AL, United StatesHQ checked Sep 20, 2026	51-200	113 contacts →
	Strong evidence “Founded in 2006, 3-GIS has grown to help telecommunications, electric, and gas providers manage the complexity of physical network assets.” Source: RevenueBase Database · checked Sep 20, 2026
23	Geodigital	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 20, 2026	51-200	112 contacts →
	Indirect evidence “GeoDigital - The Future is Precisely Here.” Source: RevenueBase Database · checked Sep 20, 2026
24	Geospatial Consulting Group International, LLC Geocgi	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 20, 2026	51-200	104 contacts →
	Indirect evidence “Geospatial Consulting Group International, LLC (geocgi) is a woman-owned, small business specialized in providing services to support the successful implementation, integration…” Source: RevenueBase Database · checked Sep 20, 2026
25	Anderson, Eckstein & Westrick, INC	Indirect evidence	Shelby Township, MI, United StatesHQ checked Sep 20, 2026	51-200	103 contacts →
	Indirect evidence “Anderson, Eckstein & Westrick, Inc.(AEW) is a full-service consulting firm providing professional Engineering and Architectural services to the public and private sectors since…” Source: RevenueBase Database · checked Sep 20, 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: gis services 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 gis services companies.
Partial evidence: Its own public description names part of gis services companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name gis services 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 828 gis services companies based in the United States

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Gis services companies based in the United States at a glance

As of Sep 20, 2026

49.0%Verified-email coverage

25.2Average contacts per company

1-10Median size (employees)

2.2%Largest-city concentration · Houston

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

486

11-50

230

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 828 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 gis services 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 “gis services 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 gis services 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 gis services 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, 10,215 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 20, 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 gis services 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 gis services companies are there based in the United States?

RevenueBase identified 828 gis services 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?

ESRI, headquartered in Redlands, tops this list with the largest team on record.

Which city has the most gis services companies?

Houston leads with 18 headquartered companies, followed by Austin (13) and Denver (11).

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 10,215 verified decision-maker contacts tracked across these 828 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 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 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.