Company lists · Data refreshed September 2026
Top 25 Outsourcing companies based in Houston, United States
RevenueBase identified 116 outsourcing companies headquartered in Houston, United States as of September 2026 and tracks 2,411 professional contacts across them, including 383 with verified work emails. New York is the largest hub.
This list covers outsourcing companies headquartered in Houston, 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 14, 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.
The 25 largest outsourcing companies based in Houston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 454 contacts → | ||||
Strong evidence “SupportZebra is a business process outsourcing company based in the Philippines, with headquarters in the Houston,TX region, that specializes in: Sales & Marketing Retention |…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 179 contacts → | ||||
Strong evidence “EAG is a Houston-based, privately held consulting, back-office outsourcing, and IT outsourcing firm that delivers products and services primarily to the upstream and midstream oil…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 173 contacts → | ||||
Indirect evidence “S4 Communications is a BPO provider with operations based out of Houston, Texas.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 126 contacts → | ||||
Indirect evidence “GSD Solutions is a consulting and co-sourcing partner built for companies that need more capability - not more overhead.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 91 contacts → | ||||
Strong evidence “We do outsourcing different.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 64 contacts → | ||||
Indirect evidence “We're proud to be a reliable BPO player right from our founding year, i.e.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 59 contacts → | ||||
Indirect evidence “Kanshe Infotech is a leading IT services provider.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 54 contacts → | ||||
Strong evidence “Jasper IT is a call center-based company specializing in telemarketing and business process outsourcing services.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 42 contacts → | ||||
Indirect evidence “We are a research, development & consulting company-providing software solutions in multi-tier distributed architecture & eCommerce.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 37 contacts → | ||||
Indirect evidence “Eljay Global is a technology based company.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 36 contacts → | ||||
Indirect evidence “TSN (The Staffing Ninjas), as the industry's foremost full-cycle offshore recruiting service provider, is committed exclusively to technology staffing.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 35 contacts → | ||||
Indirect evidence “CONNECTING YOUR BUSINESS WITH NORTH AMERICA’S BEST REMOTE TALENT We partner with firms across North America to fill employment voids created by labor supply and rising employment…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 34 contacts → | ||||
Indirect evidence “Addevice is at the forefront of IT services, aiming to enhance your business's cost efficiency and agility.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 33 contacts → | ||||
Indirect evidence “Since 2001, SunNet Solutions has designed, built, integrated, and maintained mission-critical software for healthcare organizations, educational institutions, government agencies…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 26 contacts → | ||||
Indirect evidence “At AtPoint, we believe in providing a unified platform to create a superior customer experience.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 26 contacts → | ||||
Strong evidence “Providing outsourcing services that are all integral to core business processes and keeps the business running seamlessly while allowing management to focus on core business…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 21 contacts → | ||||
Indirect evidence “Imperial provides outsourced back-office accounting services for many types of businesses: high-growth businesses, distressed, M&A situations, and turnarounds.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 21 contacts → | ||||
Indirect evidence “Volia Software is a U.S.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 18 contacts → | ||||
Strong evidence “SmyanSoft is an American information technology company that provides business consulting, information technology and outsourcing services.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 17 contacts → | ||||
Indirect evidence “DEG is headquartered in Houston, TX with strong resourcing capability at the core of our strategy to be a digital transformation partner of choice.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 16 contacts → | ||||
Indirect evidence “Elite Corporate Solutions is an absolute business services provider specialized in the staffing area for administrative, professional and IT requirements.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 14 contacts → | ||||
Indirect evidence “Ataraxis helps companies hire MBA-level global talent quickly, reliably, and without the operational headaches.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 13 contacts → | ||||
Indirect evidence “StaffBox Corp.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 12 contacts → | ||||
Indirect evidence “At DFS Worldwide we embrace a sourcing business model that enhances strategies around purchasing and customer creation.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 6 contacts → | ||||
Indirect evidence “MANSAI Inc, head quartered in Houston, Texas, is a leading multinational organization that has successfully served the information technology market place since 2002.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
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: outsourcing 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 outsourcing companies.
- Partial evidence
- Its own public description names part of outsourcing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name outsourcing 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 116 outsourcing companies based in Houston, United States
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Outsourcing companies based in Houston, United States at a glance
As of Sep 14, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 116 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 outsourcing 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 Houston, United States whose own description of what they do matches “outsourcing 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 outsourcing 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 outsourcing companies, and records with no verified work email. Companies headquartered outside Houston 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, 383 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 14, 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.
Outsourcing companies by metro in the United States
- Outsourcing companies in New York256
- Outsourcing companies in Miami146
- Outsourcing companies in Austin121
- Outsourcing companies in Houston116
- Outsourcing companies in Sheridan113
- Outsourcing companies in Dallas96
- Outsourcing companies in Chicago84
- Outsourcing companies in Los Angeles82
- Outsourcing companies in San Francisco79
- Outsourcing companies in Atlanta70
- Outsourcing companies in Wilmington56
- Outsourcing companies in Tampa54
- Outsourcing companies in San Diego50
- Outsourcing companies in Dover45
- Outsourcing companies in Orlando42
- Outsourcing companies in Las Vegas40
- Outsourcing companies in San Jose40
- Outsourcing companies in Seattle39
- Outsourcing companies in Phoenix35
- Outsourcing companies in Irving33
- Outsourcing companies in Newark33
- Outsourcing companies in Princeton32
- Outsourcing companies in Irvine31
- Outsourcing companies in Plano31
- Outsourcing companies in Boston27
- Outsourcing companies in Charlotte27
- Outsourcing companies in Fort Lauderdale27
- Outsourcing companies in Lewes27
- Outsourcing companies in Denver25
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 outsourcing 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 outsourcing companies are there based in Houston, United States?
RevenueBase identified 116 outsourcing companies headquartered in Houston, 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?
Supportzebra, headquartered in Houston, tops this list with the largest team on record.
Which city has the most outsourcing companies?
New York leads with 256 headquartered companies, followed by Miami (146) and Austin (121).
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 383 verified decision-maker contacts tracked across these 116 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 14, 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.
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