SECWYN

Professional Services Companies in Massachusetts: 52 Verified Firms

Secwyn has verified 52 professional services companies based in Massachusetts. The largest groups are Temporary Help Services (17); Architectural Services (9); and Employment Placement Agencies (9). By headcount, 78% have 51–200 employees, 10% have 201–500 employees, and 12% fall in other size bands. Size is not yet confirmed for 1. Boston has the most (13), followed by Marlborough (3).

Company size

  • 11–50 employees1 · 2%
  • 51–200 employees40 · 77%
  • 201–500 employees5 · 10%
  • 501–1,000 employees5 · 10%
  • Size not confirmed1 · 2%

Top cities

  • Boston13 · 25%
  • Marlborough3 · 6%

Cities with fewer than 3 companies are not listed.

Largest sub-industries

Sub-industryCompanies
Temporary Help Services17
Architectural Services9
Employment Placement Agencies9
Engineering Services9
Landscaping Services8

A sample of these companies

A few of the 52 professional services companies in Massachusetts. Names, websites and contacts are shown after you sign up.

  1. Company #1 · name shown after sign-up

    Employment Placement Agencies · 51–200 employees

  2. Company #2 · name shown after sign-up

    Architectural Services · 51–200 employees · Boston

  3. Company #3 · name shown after sign-up

    Temporary Help Services · 51–200 employees

  4. Company #4 · name shown after sign-up

    Engineering Services · 51–200 employees

  5. Company #5 · name shown after sign-up

    Landscaping Services · 51–200 employees

  6. Company #6 · name shown after sign-up

    Employment Placement Agencies · 51–200 employees · Boston

Find the Massachusetts 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.

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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.