Professional Services Companies in Texas: 205 Verified Firms
Secwyn has verified 205 professional services companies based in Texas. The largest groups are Temporary Help Services (72); Engineering Services (45); and Employment Placement Agencies (27). By headcount, 72% have 51–200 employees, 19% have 201–500 employees, and 10% fall in other size bands. Size is not yet confirmed for 1. Houston has the most (45), followed by Dallas (41) and Austin (18). Of the 60 whose customers we could confirm, 93% sell to businesses and 5% to consumers.
Company size
- 11–50 employees3 · 1%
- 51–200 employees146 · 71%
- 201–500 employees38 · 19%
- 501–1,000 employees17 · 8%
- Size not confirmed1 · 0%
Who they sell to, among the 60 companies where we could confirm it: businesses 93%, consumers 5%, government 25%. A company can sell to more than one.
Top cities
- Houston45 · 22%
- Dallas41 · 20%
- Austin18 · 9%
- San Antonio11 · 5%
- Fort Worth10 · 5%
- Plano9 · 4%
- Irving7 · 3%
- Carrollton3 · 1%
- Richardson3 · 1%
Cities with fewer than 3 companies are not listed.
Largest sub-industries
| Sub-industry | NAICS | Companies |
|---|---|---|
| Temporary Help Services | 561320 | 72 |
| Engineering Services | 541330 | 45 |
| Employment Placement Agencies | 561311 | 27 |
| Architectural Services | 541310 | 14 |
| Landscaping Services | 561730 | 13 |
| Executive Search Services | 561312 | 10 |
| All Other Business Support Services | 561499 | 3 |
| Janitorial Services | 561720 | 3 |
A sample of these companies
A few of the 205 professional services companies in Texas. Names, websites and contacts are shown after you sign up.
Company #1 · name shown after sign-up
Temporary Help Services · 201–500 employees · San Antonio
Company #2 · name shown after sign-up
Other Accounting Services · 51–200 employees · Dallas
Company #3 · name shown after sign-up
Engineering Services · 201–500 employees
Company #4 · name shown after sign-up
Employment Placement Agencies · 51–200 employees
Company #5 · name shown after sign-up
Architectural Services · 51–200 employees · Fort Worth
Company #6 · name shown after sign-up
Landscaping Services · 51–200 employees · Dallas
Find the Texas professional services companies that fit what you sell
Describe what you sell and Secwyn shows the companies most likely to buy it, with the reasons for each match. Sign up free and your first 3 company reveals are on us: name, website, description with its source, contact channels and the roles to contact.
How Secwyn verifies these companies
- Every company description is a sentence visible on the company's own website. Inside the product, each one links to its source page.
- Each company has a NAICS industry code, the US government standard for classifying businesses.
- All companies are based in the United States. Location and size come from public sources, including company filings and People Data Labs.
Data updated October 6, 2026.