Company lists · Data refreshed September 2026

Top 25 Outsourcing companies based in Houston, United States

Name: Outsourcing companies based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 116 companies tracked

RevenueBase identified 116 outsourcing companies headquartered in Houston, United States as of September 2026 and tracks 2,532 professional contacts across them, including 388 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

116Companies

2,532Contacts tracked

388Verified emails

Explore all 116 companies → Free signup · no credit card · 500 free credits

The 25 largest outsourcing companies based in Houston, United States

Ranked by team size

Top 25 of 116 outsourcing companies based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names outsourcing companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	SupportzebraStrong evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	454
	“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: company website · checked Sep 5, 2026
2	EAGStrong evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	51-200	179
	“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: company website · checked Sep 5, 2026
3	S4 CommunicationsIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	201-500	173
	“S4 Communications is a BPO provider with operations based out of Houston, Texas.” Source: company website · checked Sep 5, 2026
4	GSD SolutionsIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	201-500	126
	“GSD Solutions is a consulting and co-sourcing partner built for companies that need more capability - not more overhead.” Source: company website · checked Sep 5, 2026
5	Strategic Office SupportStrong evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	501-1,000	91
	“We do outsourcing different.” Source: company website · checked Sep 5, 2026
6	Clutch GroupIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	n/a	90
	“A company that provides business services.” Source: company website · checked Sep 5, 2026
7	Protocol Leads Infotech Pvt. LTDIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	51-200	64
	“We're proud to be a reliable BPO player right from our founding year, i.e.” Source: company website · checked Sep 5, 2026
8	Kanshe InfotechIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	11-50	59
	“Kanshe Infotech is a leading IT services provider.” Source: company website · checked Sep 5, 2026
9	Jasper IT Pvt.LtdStrong evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	11-50	54
	“Jasper IT is a call center-based company specializing in telemarketing and business process outsourcing services.” Source: company website · checked Sep 5, 2026
10	Blue Space Technologies INCIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	11-50	42
	“We are a research, development & consulting company-providing software solutions in multi-tier distributed architecture & eCommerce.” Source: company website · checked Sep 5, 2026
11	Eljay GlobalIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	201-500	37
	“Eljay Global is a technology based company.” Source: company website · checked Sep 5, 2026
12	The Staffing Ninjas TSN PartnersIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	11-50	36
	“TSN (The Staffing Ninjas), as the industry's foremost full-cycle offshore recruiting service provider, is committed exclusively to technology staffing.” Source: company website · checked Sep 5, 2026
13	Regents Remote ServicesIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	51-200	35
	“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: company website · checked Sep 5, 2026
14	AddeviceIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	201-500	34
	“Addevice is at the forefront of IT services, aiming to enhance your business's cost efficiency and agility.” Source: company website · checked Sep 5, 2026
15	Sunnet SolutionsIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	11-50	33
	“Since 2001, SunNet Solutions has designed, built, integrated, and maintained mission-critical software for healthcare organizations, educational institutions, government agencies…” Source: company website · checked Sep 5, 2026
16	AtpointIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	201-500	26
	“At AtPoint, we believe in providing a unified platform to create a superior customer experience.” Source: company website · checked Sep 5, 2026
17	Tasg Business Process Services, LLCStrong evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	11-50	26
	“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: company website · checked Sep 5, 2026
18	ImperialIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	11-50	21
	“Imperial provides outsourced back-office accounting services for many types of businesses: high-growth businesses, distressed, M&A situations, and turnarounds.” Source: company website · checked Sep 5, 2026
19	Volia SoftwareIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	201-500	21
	“Volia Software is a U.S.” Source: company website · checked Sep 5, 2026
20	SmyansoftStrong evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	201-500	18
	“SmyanSoft is an American information technology company that provides business consulting, information technology and outsourcing services.” Source: company website · checked Sep 5, 2026
21	Domain Experts GroupIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	51-200	17
	“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: company website · checked Sep 5, 2026
22	Elite Corporate SolutionsIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	51-200	16
	“Elite Corporate Solutions is an absolute business services provider specialized in the staffing area for administrative, professional and IT requirements.” Source: company website · checked Sep 5, 2026
23	AtaraxisIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1-10	14
	“Ataraxis helps companies hire MBA-level global talent quickly, reliably, and without the operational headaches.” Source: company website · checked Sep 5, 2026
24	Staffbox Corp. LLCIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	201-500	13
	“StaffBox Corp.” Source: company website · checked Sep 5, 2026
25	DFS WorldwideIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	11-50	12
	“At DFS Worldwide we embrace a sourcing business model that enhances strategies around purchasing and customer creation.” Source: company website · checked Sep 5, 2026

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 5, 2026

11-50Median size (employees)

New YorkLargest hub · 252 HQs

Contacts with mobile numbers

Sep 5, 2026Data 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 this city, 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 evidence 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 SmartSearch, 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.
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 an evidence 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, 388 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 5, 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

Frequently asked

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 252 headquartered companies, followed by Miami (143) and Austin (122).

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 388 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 5, 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 SmartSearch, 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.