MSP appointment setting in Phoenix: who to call first

8 things to know before prospecting MSP in Phoenix

1. 013,115 IT services firms work the Phoenix-Mesa metro (+30 in a year), 16% more concentrated than the U.S. as a whole.
2. 022.0 target businesses per IT firm ranks Phoenix #75 of 100 markets and #2 of 2 in Arizona.
3. 03The biggest buyer group is construction contractors: 1,468 sites with 20 to 499 employees.
4. 04Phoenix-Mesa over-indexes on real estate brokerages and property management offices at 1.67x the national mix, so build references inside that group.
5. 05Construction contractors added 400 establishments in a year: new sites without a managed service provider relationship.
6. 06Tier 1 is 1,473 sites with 50 to 499 employees among construction contractors and medical, dental and outpatient practices; those deserve two or three contacts each.
7. 07Maricopa County holds 97% of the target businesses across 2 counties.
8. 08Tucson (94 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 Phoenix-Mesa metro and who to ask for. Compared with the U.S. as a whole, Phoenix-Mesa leans toward real estate brokerages and property management offices (1.67x), wealth management and investment firms (1.46x) and architecture and engineering firms (1.37x). Build the list around those categories. Nonprofits and member organizations and manufacturers are thinner than the national mix, so treat them as selective targets.

1. 01
   Construction contractors1,468

   Ask for: Owner or president 610 with 50 to 499 employees 1.06x U.S. mix +400 in a year
2. 02
   Medical, dental and outpatient practices1,331

   Ask for: Practice administrator 388 with 50 to 499 employees 1.31x U.S. mix +117 in a year
3. 03
   Manufacturers962

   Ask for: Owner or president 475 with 50 to 499 employees 0.84x U.S. mix +239 in a year
4. 04
   Wholesale distributors814

   Ask for: Owner or president 303 with 50 to 499 employees 1.35x U.S. mix -298 in a year
5. 05
   Private schools and education providers421

   Ask for: Head of school or director 188 with 50 to 499 employees 1.17x U.S. mix +28 in a year
6. 06
   Nonprofits and member organizations273

   Ask for: Executive director 92 with 50 to 499 employees 0.59x U.S. mix -15 in a year
7. 07
   Architecture and engineering firms249

   Ask for: Principal or owner 102 with 50 to 499 employees 1.37x U.S. mix +78 in a year
8. 08
   Real estate brokerages and property management offices235

   Ask for: Broker-owner 99 with 50 to 499 employees 1.67x U.S. mix -69 in a year
9. 09
   Law firms148

   Ask for: Managing partner 47 with 50 to 499 employees 1.26x U.S. mix +71 in a year
10. 10
    Accounting, tax and bookkeeping firms125

    Ask for: Managing partner 47 with 50 to 499 employees 1.32x U.S. mix +34 in a year
11. 11
    Insurance agencies and brokerages123

    Ask for: Agency principal or owner 52 with 50 to 499 employees 1.32x U.S. mix -21 in a year
12. 12
    Wealth management and investment firms87

    Ask for: Firm principal 32 with 50 to 499 employees 1.46x U.S. mix +51 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.

Every industry here has a size mix close to the 100-metro average, so the tiers follow the counts.

• Construction contractors are the largest group in Phoenix with 1,468 businesses of 20 to 499 employees, more than Tucson has (261): close to the national mix, up 400 establishments in a year, and typical in size (23% with 50 or more employees).

• Medical, dental and outpatient practices are the second-largest group in Phoenix with 1,331 businesses of 20 to 499 employees, more than Tucson has (298): more concentrated than nationally (1.31x), up 117 establishments in a year, and typical in size (13% with 50 or more employees).

• Manufacturers are the third-largest group in Phoenix with 962 businesses of 20 to 499 employees, more than Tucson has (130): less concentrated than nationally (0.84x), up 239 establishments in a year, and typical in size (33% with 50 or more employees).

• Wholesale distributors are the fourth-largest group in Phoenix with 814 businesses of 20 to 499 employees, more than Tucson has (80): more concentrated than nationally (1.35x), down 298 establishments in a year, and typical in size (21% with 50 or more employees).

• Private schools and education providers are the fifth-largest group in Phoenix with 421 businesses of 20 to 499 employees, more than Tucson has (81): more concentrated than nationally (1.17x), up 28 establishments in a year, and typical in size (27% with 50 or more employees).

• Nonprofits and member organizations are the sixth-largest group in Phoenix with 273 businesses of 20 to 499 employees, more than Tucson has (79): less concentrated than nationally (0.59x), down 15 establishments in a year, and typical in size (17% with 50 or more employees).

After those six come architecture and engineering firms (249), real estate brokerages and property management offices (235), law firms (148), accounting, tax and bookkeeping firms (125), insurance agencies and brokerages (123) and wealth management and investment firms (87), smaller groups to work by fit rather than volume.

Where a rule or a client review puts a date on security work in Phoenix: medical, dental and outpatient practices (1,331, HIPAA), manufacturers (962, CMMC where they supply defense work), law firms (148, client security questionnaires), accounting, tax and bookkeeping firms (125, the FTC Safeguards Rule), insurance agencies and brokerages (123, carrier and state insurance data security requirements) and wealth management and investment firms (87, SEC and FINRA exams); together, 2,776 businesses where the first message can lead with the requirement instead of the service.

What leads in each core county

• Maricopa County: construction contractors (1,430), medical, dental and outpatient practices (1,295) and manufacturers (922) lead its 6,062 target businesses.
• Pinal County: manufacturers (40), construction contractors (38) and medical, dental and outpatient practices (34) lead its 157 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.

3,115 IT services firms are based in the Phoenix-Mesa metro. 30 more opened over the past year, so buyers are fielding new names. The IT services industry is 16% more concentrated than the U.S. as a whole. Business owners and office managers here already hear from managed service providers, and a specific reason to talk beats a generic pitch. 2.0 target businesses per IT firm puts Phoenix 75 of 100 markets, and 2 of 2 in Arizona. That is toward the crowded end, so growth here comes mostly from displacing incumbents at renewal. If you can serve Tucson and Riverside, they have more target businesses per IT firm than Phoenix.

Tier 1 covers construction contractors, medical, dental and outpatient practices and manufacturers with 50 to 499 employees.

Maricopa County holds 97% of the target businesses across the 2-county metro. The other 1 county splits the remaining 3%, 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.

• Construction contractors: 400 more establishments than a year ago

  In this category the usual openings are office growth, a new branch, job site connectivity problems, a wire fraud attempt, a cyber insurance renewal.

• Manufacturers: 239 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.

• Medical, dental and outpatient practices: 117 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.

• Wholesale distributors: 298 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.

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

If your engineers travel, Tucson, Riverside, Las Vegas and San Diego are the closest metros we track. Here are the same counts used above for Phoenix.

• Tucson, AZ

  94 miles away, with 1,065 target businesses and 312 IT services firms, or 3.4 businesses per IT firm (#36 of 100 markets); the largest buyer group is medical, dental and outpatient practices, and it over-indexes on architecture and engineering firms at 1.62x the national mix.

• Riverside, CA

  203 miles away, with 4,257 target businesses and 539 IT services firms, or 7.9 businesses per IT firm (#6 of 100 markets); the largest buyer group is construction contractors.

• Las Vegas, NV

  244 miles away, with 2,501 target businesses and 1,509 IT services firms, or 1.7 businesses per IT firm (#82 of 100 markets); the largest buyer group is construction contractors, and it over-indexes on law firms at 1.52x the national mix.

• San Diego, CA

  248 miles away, with 4,192 target businesses and 1,255 IT services firms, or 3.3 businesses per IT firm (#37 of 100 markets); the largest buyer group is construction contractors, and it over-indexes on real estate brokerages and property management offices at 1.38x the national mix.