Company lists · Data refreshed September 2026

Top 25 Infrastructure engineering staffing companies based in San Antonio, United States

Name: Infrastructure engineering staffing companies based in San Antonio, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 66 companies tracked

RevenueBase identified 66 infrastructure engineering staffing companies headquartered in San Antonio, United States as of September 2026 and tracks 3,614 professional contacts across them, including 561 with verified work emails. Across the United States, Houston is the largest hub for this category (320 companies); San Antonio has 66.

This list covers infrastructure engineering staffing companies headquartered in San Antonio, 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 28, 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 28, 2026 86% judged on-target in blind review

66Companies

3,614Contacts tracked

561Verified emails

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The 25 largest infrastructure engineering staffing companies based in San Antonio, United States

Ranked by team size

Top 25 of 66 infrastructure engineering staffing companies based in San Antonio, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure engineering staffing 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	Raba Kistner, INC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	501-1,000	582 contacts →
	Indirect evidence “Founded in 1968, Raba Kistner Inc.” Source: RevenueBase Database · checked Sep 28, 2026
2	Tri-Starr Talent	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	11-50	94 contacts →
	Partial evidence “We’re a San Antonio-based staffing and recruiting firm with more than 40 years of proven success helping local companies grow and connecting jobseekers with top career…” Source: RevenueBase Database · checked Sep 28, 2026
3	Pape-Dawson Engineers	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	501-1,000	56 contacts →
	Partial evidence “Founded in 1965, Pape-Dawson provides professional civil engineering, surveying, GIS, and environmental services for public and private clients.” Source: RevenueBase Database · checked Sep 28, 2026
4	Unintech Consulting Engineers, INC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	51-200	38 contacts →
	Indirect evidence “Founded in 1992, Unintech Consulting Engineers, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
5	MOY Tarin Ramirez Engineers, LLC	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	11-50	29 contacts →
	Partial evidence “Moy Tarin Ramirez Engineers, LLC (MTR) is committed to providing our clients with engineering excellence utilizing creativity and sound engineering principles, with an eye on…” Source: RevenueBase Database · checked Sep 28, 2026
6	Mendez Engineering	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	11-50	29 contacts →
	Partial evidence “Mendez Engineering was founded on January 10, 2012 in San Antonio, Texas by Ray Méndez, PE, CFM.” Source: RevenueBase Database · checked Sep 28, 2026
7	Indigo Construction, LLC	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	11-50	22 contacts →
	Partial evidence “With more than fifty (50) years' combined experience constructing residential, commercial, and public infrastructure projects throughout Texas, Indigo Construction, LLC.” Source: RevenueBase Database · checked Sep 28, 2026
8	TOP Engineers Plus, Pllc	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	11-50	19 contacts →
	Partial evidence “TOP Engineers Plus offers a full spectrum of Engineering services in the Telecommunications Industry.” Source: RevenueBase Database · checked Sep 28, 2026
9	Intelligent Engineering Services, LLP	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	11-50	18 contacts →
	Partial evidence “Intelligent Engineering Services, LLP (IES) was established in in San Antonio, Texas.” Source: RevenueBase Database · checked Sep 28, 2026
10	Parra & CO	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	11-50	14 contacts →
	Partial evidence “Parra & Co is a family-owned civil engineering firm based in Texas that delivers simple solutions focusing on resiliency, sustainability, and economic practicality.” Source: RevenueBase Database · checked Sep 28, 2026
11	Right PM	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	51-200	10 contacts →
	Partial evidence “Right PM is a specialized staffing solutions provider dedicated to serving the construction industry.” Source: RevenueBase Database · checked Sep 28, 2026
12	Slay Engineering Company INC	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	11-50	10 contacts →
	Partial evidence “Slay Engineering Company, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
13	UP Engineering, A Bowman Company	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	11-50	9 contacts →
	Partial evidence “As of February 19, 2025, UP Engineering has joined team Bowman.” Source: RevenueBase Database · checked Sep 28, 2026
14	TJ Consulting Group	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	1-10	9 contacts →
	Partial evidence “We exceed in sourcing top talent worldwide (Corporate, Information Technology, Cybersecurity, Logistics, Engineering, Energy, Software Development, ERP, Intel, Healthcare…” Source: RevenueBase Database · checked Sep 28, 2026
15	Empowered Management Solutions	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	51-200	9 contacts →
	Partial evidence “Empowered Management Solutions LLC ["EMS"] is a DIRECT HIRE & STAFFING SERVICE PROVIDER that has mastered the art of attracting talent & hiring with purpose.” Source: RevenueBase Database · checked Sep 28, 2026
16	Infinity Advisory Group	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “Infinity Advisory Group was founded in 2009, and has maintained an local image through the years based on a valuable premise: we invest in people.” Source: RevenueBase Database · checked Sep 28, 2026
17	Floodace	Strong evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	11-50	7 contacts →
	Strong evidence “Floodace, LLC is a Texas born-and-raised, grass-roots niche civil engineering firm specializing in flood analysis, Infrastructure Asset Management and custom GIS automation.” Source: RevenueBase Database · checked Sep 28, 2026
18	Jordan Sitter Associates	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence “Jordan Sitter, a Reputable Recruiting company, helps heavy equipment companies across the U.S.” Source: RevenueBase Database · checked Sep 28, 2026
19	Streamline Engineering	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	11-50	6 contacts →
	Partial evidence “Streamline Engineering (Streamline) is a full-service civil engineering firm based in San Antonio, Texas.” Source: RevenueBase Database · checked Sep 28, 2026
20	Simplicit Engineering	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “Simplicit Engineering’s (Simplicit) professional engineers and designers seamlessly provide both mechanical and structural engineering expertise, working side by side in a setting…” Source: RevenueBase Database · checked Sep 28, 2026
21	MHR Engineering, LLC	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	11-50	5 contacts →
	Partial evidence “MHR Engineering is a distinguished provider of consulting, engineering, and professional surveying services to private, public, and federal clients.” Source: RevenueBase Database · checked Sep 28, 2026
22	Eastco Enterprises INC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence “Eastco Enterprises Inc is a Construction company located in 26605 Bulverde Rd, San Antonio, Texas, United States.” Source: RevenueBase Database · checked Sep 28, 2026
23	T-Core Engineers	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Indirect evidence “T-Core Engineers focuses on providing a wide range of consulting services to a variety of clientele.” Source: RevenueBase Database · checked Sep 28, 2026
24	Root Seven	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “We help reputable employers access & hire key information technology talent.” Source: RevenueBase Database · checked Sep 28, 2026
25	JLS Solutions, LLC	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Partial evidence “JLS Solutions is a veteran-led provider of skilled trades professionals supporting energy and infrastructure projects across the United States.” Source: RevenueBase Database · checked Sep 28, 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: infrastructure engineering staffing 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 infrastructure engineering staffing companies.
Partial evidence: Its own public description names part of infrastructure engineering staffing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure engineering staffing 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 66 infrastructure engineering staffing companies based in San Antonio, United States

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Infrastructure engineering staffing companies based in San Antonio, United States at a glance

As of Sep 28, 2026

15.5%Verified-email coverage

54.8Average contacts per company

11-50Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for San Antonio, so it is reported there. Company counts and contact totals on this page are exact for San Antonio, over 66 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 infrastructure engineering staffing 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 San Antonio, United States whose own description of what they do matches “infrastructure engineering staffing 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 infrastructure engineering staffing 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 infrastructure engineering staffing companies, and records with no verified work email. Companies headquartered outside San Antonio 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, 561 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 28, 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.

Infrastructure engineering staffing companies 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 infrastructure engineering staffing 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 infrastructure engineering staffing companies are there based in San Antonio, United States?

RevenueBase identified 66 infrastructure engineering staffing companies headquartered in San Antonio, 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?

Raba Kistner, INC, headquartered in San Antonio, tops this list with the largest team on record.

Which city in the United States has the most infrastructure engineering staffing companies?

Houston leads the United States with 320 headquartered companies, followed by New York (192) and Austin (129). San Antonio has 66.

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 561 verified decision-maker contacts tracked across these 66 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 28, 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.