MSP appointment setting in Houston: who to call first

8 things to know before prospecting MSP in Houston

1. 013,000 IT services firms work the Houston-Pasadena metro (-56 in a year), about the national concentration.
2. 023.0 target businesses per IT firm ranks Houston #43 of 100 markets and #4 of 6 in Texas.
3. 03The biggest buyer group is manufacturers: 1,741 sites with 20 to 499 employees.
4. 04Houston-Pasadena over-indexes on medical, dental and outpatient practices at 1.42x the national mix, so build references inside that group.
5. 05Medical, dental and outpatient practices added 164 establishments in a year: new sites without a managed service provider relationship.
6. 06Tier 1 is 2,133 sites with 50 to 499 employees among manufacturers and construction contractors; those deserve two or three contacts each.
7. 07Harris County holds 78% of the target businesses across 9 counties.
8. 08San Antonio (153 miles) has more target businesses per IT firm, if your engineers can cover it.

These are the 12 industries Abstrakt's SDRs call for MSP work, with how many of each are in the Houston-Pasadena metro and who to ask for. Compared with the U.S. as a whole, Houston-Pasadena leans toward medical, dental and outpatient practices (1.42x), architecture and engineering firms (1.40x) and law firms (1.36x). Build the list around those categories. Nonprofits and member organizations is thinner than the national mix, so treat it as selective targets.

1. 01
   Manufacturers1,741

   Ask for: Owner or president 822 with 50 to 499 employees 1.26x U.S. mix +55 in a year
2. 02
   Construction contractors1,697

   Ask for: Owner or president 741 with 50 to 499 employees 0.91x U.S. mix -36 in a year
3. 03
   Wholesale distributors1,586

   Ask for: Owner or president 570 with 50 to 499 employees 1.19x U.S. mix -164 in a year
4. 04
   Medical, dental and outpatient practices1,561

   Ask for: Practice administrator 497 with 50 to 499 employees 1.42x U.S. mix +164 in a year
5. 05
   Architecture and engineering firms595

   Ask for: Principal or owner 273 with 50 to 499 employees 1.40x U.S. mix -17 in a year
6. 06
   Nonprofits and member organizations492

   Ask for: Executive director 185 with 50 to 499 employees 0.47x U.S. mix -16 in a year
7. 07
   Private schools and education providers456

   Ask for: Head of school or director 166 with 50 to 499 employees 0.96x U.S. mix +50 in a year
8. 08
   Law firms295

   Ask for: Managing partner 101 with 50 to 499 employees 1.36x U.S. mix -9 in a year
9. 09
   Real estate brokerages and property management offices228

   Ask for: Broker-owner 88 with 50 to 499 employees 1.28x U.S. mix -105 in a year
10. 10
    Wealth management and investment firms154

    Ask for: Firm principal 61 with 50 to 499 employees 1.21x U.S. mix -69 in a year
11. 11
    Accounting, tax and bookkeeping firms145

    Ask for: Managing partner 65 with 50 to 499 employees 1.18x U.S. mix -129 in a year
12. 12
    Insurance agencies and brokerages145

    Ask for: Agency principal or owner 57 with 50 to 499 employees 1.06x U.S. mix -50 in a year

Businesses are establishments with 20 to 499 employees (U.S. Census Bureau, County Business Patterns 2023), the small and mid-sized range MSPs sell to; the SBA Office of Advocacy counts firms under 500 employees as small businesses. Change and concentration: U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages, private ownership, 2025 Q2.

Construction contractors, architecture and engineering firms and nonprofits and member organizations run larger in Houston than across our 100 metros, which puts more of them in Tier 1.

• Manufacturers are the largest group in Houston with 1,741 businesses of 20 to 499 employees, more than Austin has (374): more concentrated than nationally (1.26x), up 55 establishments in a year, and typical in size (31% with 50 or more employees).

• Construction contractors are the second-largest group in Houston with 1,697 businesses of 20 to 499 employees, more than Austin has (695): close to the national mix, down 36 establishments in a year, and larger than across our 100 metros (25% of those with 10 or more employees have 50 or more, against 18%), so plan on two or three contacts per account.

• Wholesale distributors are the third-largest group in Houston with 1,586 businesses of 20 to 499 employees, more than Austin has (383): more concentrated than nationally (1.19x), down 164 establishments in a year, and typical in size (19% with 50 or more employees).

• Medical, dental and outpatient practices are the fourth-largest group in Houston with 1,561 businesses of 20 to 499 employees, more than Austin has (606): more concentrated than nationally (1.42x), up 164 establishments in a year, and typical in size (14% with 50 or more employees).

• Architecture and engineering firms are the fifth-largest group in Houston with 595 businesses of 20 to 499 employees, more than Austin has (239): more concentrated than nationally (1.40x), down 17 establishments in a year, and larger than across our 100 metros (29% of those with 10 or more employees have 50 or more, against 22%), so plan on two or three contacts per account.

• Nonprofits and member organizations are the sixth-largest group in Houston with 492 businesses of 20 to 499 employees, more than Austin has (222): less concentrated than nationally (0.47x), down 16 establishments in a year, and larger than across our 100 metros (20% of those with 10 or more employees have 50 or more, against 15%), so plan on two or three contacts per account.

After those six come private schools and education providers (456), law firms (295), real estate brokerages and property management offices (228), wealth management and investment firms (154), accounting, tax and bookkeeping firms (145) and insurance agencies and brokerages (145), smaller groups to work by fit rather than volume.

Where a rule or a client review puts a date on security work in Houston: manufacturers (1,741, CMMC where they supply defense work), medical, dental and outpatient practices (1,561, HIPAA), law firms (295, client security questionnaires), wealth management and investment firms (154, SEC and FINRA exams), accounting, tax and bookkeeping firms (145, the FTC Safeguards Rule) and insurance agencies and brokerages (145, carrier and state insurance data security requirements); together, 4,041 businesses where the first message can lead with the requirement instead of the service.

What leads in each core county

• Harris County: manufacturers (1,313), wholesale distributors (1,302) and construction contractors (1,276) lead its 7,019 target businesses.
• Fort Bend County: medical, dental and outpatient practices (187), manufacturers (117) and wholesale distributors (107) lead its 656 target businesses.
• Montgomery County: medical, dental and outpatient practices (152), construction contractors (147) and manufacturers (120) lead its 656 target businesses.
• Brazoria County: manufacturers (67), construction contractors (62) and medical, dental and outpatient practices (52) lead its 254 target businesses.

Employee bands: U.S. Census Bureau, County Business Patterns 2023, establishments with 10 to 499 employees; suppressed size classes count as zero. Concentration and one-year change: U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages, private ownership, 2025 Q2. The 100-metro average is the same share summed across every market we publish.

3,000 IT services firms are based in the Houston-Pasadena metro. That is 56 fewer than a year ago. When an IT firm closes or sells, its customers go looking for a new one. The IT services industry is at about the national concentration. 3.0 target businesses per IT firm puts Houston 43 of 100 markets, and 4 of 6 in Texas. That sits mid-pack: real room to grow, but the best accounts are contested. If you can serve San Antonio and McAllen, they have more target businesses per IT firm than Houston.

Tier 1 covers manufacturers, construction contractors and wholesale distributors with 50 to 499 employees.

Harris County holds 78% of the target businesses across the 9-county metro. The other 8 counties split the remaining 22%, which is where Tier 1 accounts justify the drive and smaller sites do not.

A new office or location needs network, devices and security set up before people move in, and the provider who does that work is in the best position to support it after.

• Medical, dental and outpatient practices: 164 more establishments than a year ago

  In this category the usual openings are a new location, a HIPAA risk assessment, an EHR or practice management change, a security incident.

• Manufacturers: 55 more establishments than a year ago

  In this category the usual openings are an ERP upgrade, a ransomware incident in the industry, a defense supplier CMMC requirement, a new line or facility.

• Private schools and education providers: 50 more establishments than a year ago

  In this category the usual openings are a device refresh, a wireless upgrade, a new building, a summer project list, a security incident.

• Wholesale distributors: 164 fewer establishments than a year ago

  An acquisition puts a business under new owners, who usually review who runs IT and fold it into their own systems.

• 56 fewer managed service providers than a year ago

  Clients of an IT firm that closed, retired or sold have to decide who supports them next.

More questions for every prospect type, and how to follow up after the meeting, are in the MSP prospecting playbook.

If your engineers travel, Austin, San Antonio, Dallas and McAllen are the closest metros we track. Here are the same counts used above for Houston.

• Austin, TX

  64 miles away, with 3,193 target businesses and 2,302 IT services firms, or 1.4 businesses per IT firm (#92 of 100 markets); the largest buyer group is construction contractors, and it over-indexes on real estate brokerages and property management offices at 1.60x the national mix.

• San Antonio, TX

  153 miles away, with 2,733 target businesses and 831 IT services firms, or 3.3 businesses per IT firm (#39 of 100 markets); the largest buyer group is medical, dental and outpatient practices.

• Dallas, TX

  229 miles away, with 10,653 target businesses and 6,156 IT services firms, or 1.7 businesses per IT firm (#79 of 100 markets); the largest buyer group is medical, dental and outpatient practices.

• McAllen, TX

  268 miles away, with 630 target businesses and 46 IT services firms, or 13.7 businesses per IT firm (#2 of 100 markets); the largest buyer group is medical, dental and outpatient practices.