Law firms in Boston: the Greater Boston legal market in numbers

This report is for anyone looking at law firms in Boston: a business or family choosing counsel, a lawyer weighing a move, an analyst sizing the market, or a company that sells to law firms. It covers the Census and Bureau of Labor Statistics figures for the metro, how the core and the suburbs differ, how to check a lawyer, and how to prospect firms of each size.

Greater Boston's law offices at a glance

County Business Patterns (CBP) 2023 counts offices of lawyers (NAICS 541110) in the Boston-Cambridge-Newton, MA-NH Metro Area (CBSA 14460): five Massachusetts counties plus Rockingham and Strafford counties in New Hampshire.

Average pay in Boston's law offices is 28% above the national figure (our calculation from the same dataset). The metro's five Massachusetts counties hold 2,825 of the state's 3,920 law offices, or 72%.

Suffolk County and the suburbs

Averages are our calculation from each county's published employees and payroll. Suffolk County (Boston, Chelsea, Revere and Winthrop) has 29% of the offices but 65.5% of the employees. The other 2,102 offices average about four people each. Most are neighborhood and suburban practices rather than the downtown firms, so the average pay figures for the two groups describe very different businesses. Middlesex County, home to Cambridge, has the second-largest count with 732.

How big the offices are

The Census Bureau doesn't publish the two largest classes here, but the total tells you what's in them: 34 offices have 100 or more employees, so three have 500 or more. The county detail places all three, and all seven in the 250 to 499 class, in Suffolk County.

What these counts leave out. CBP counts establishments with paid employees, not firms: a firm with a Boston headquarters and a Waltham office counts twice. Solo lawyers with no staff are excluded, as are government and in-house legal departments. "Employees" means everyone on the office payroll, from receptionists to associates; equity partners in a partnership are owners, not employees.

Lawyers, paralegals and pay

The Bureau of Labor Statistics' Occupational Employment and Wage Statistics (OEWS) counts jobs by occupation in every industry, including in-house and government lawyers. For the same metro, May 2025:

A location quotient of 1.53 means lawyers are 53% more concentrated in Boston's workforce than nationally. Paralegals are slightly less concentrated than average, so Boston runs at about 0.31 paralegals per lawyer against 0.52 nationally (754,500 lawyers and 392,880 paralegals). OEWS leaves out the self-employed and partners who own their firms.

Public companies headquartered here

SEC EDGAR lists one listed company with a Boston business address under SIC 8111, legal services:

CRA isn't a law firm. Its 10-K for the 53 weeks ended 3 January 2026 describes "a leading global consulting firm specializing in providing economic, financial and management consulting services," much of it expert testimony and damages analysis for litigation, and says it works "with many of the world's leading law firms." For sellers, that makes CRA part of the litigation supply chain rather than a target law firm. No Boston law firm itself is listed on a stock exchange.

How to find and check a Boston lawyer

1. Pin down the matter and the court. A Middlesex County probate dispute and a federal securities case need very different firms, and the county table above shows how different the offices are.
2. Get two or three names. The Boston Bar Association's lawyer referral service matches callers with member lawyers; the association calls itself Boston's largest legal network and runs 16 practice sections. Trade groups, your accountant and opposing parties' filings are other good sources.
3. Check the license. Look up each Massachusetts lawyer in the Board of Bar Overseers' attorney lookup. For a lawyer based in Rockingham or Strafford County, start with the New Hampshire Bar Association, which also runs a lawyer referral service.
4. Ask who does the work. Get the names, hourly rates and expected hours of the people on your matter, and how conflicts were checked.
5. Get it in writing. Ask for an engagement letter that sets out scope, fees, billing frequency and how to end the engagement.

Selling to Boston law firms

The large downtown offices are few, concentrated and well defended: expect security questionnaires and long cycles. The suburban practices are numerous, decide fast and, at four people on average, seldom have their own IT or marketing staff, which makes them a volume market for outsourced services. Our guide to selling to law firms covers the ethics rules behind their vendor questions.

Illustrative example. The company, rates and results are invented.

Harborlight IT (harborlight.example) sells managed IT and security to law offices with 5 to 19 employees outside downtown Boston. Census county detail gives 391 such offices in Middlesex (162), Norfolk (95), Essex (86) and Plymouth (48). Removing an estimated 15% that are branches of larger firms with central IT leaves about 332. With one decision maker each and a 3% reply rate on a three-email sequence, that's about 10 conversations; closing three in ten gives three new clients a quarter. The lever is relevance: an email that names the office's actual setup beats one that names its county. Researching 332 offices by hand is the slow part, and Bebop does that research for each account in a list.

Subject: IT for [firm]'s [town] office

Hi [first name],

Offices the size of [firm] usually have one person who ends up as the IT department on top of their real job. If that's you, I'd like to help.

We look after email, devices, backups and security for small law offices in [county], with a written summary you can hand to a client who asks how their files are protected.

Would a 15-minute call next [day] be useful? If the timing's wrong, tell me and I won't follow up.

[Your name]
[Company], [postal address]

Local sources

Next step: turn the segment you want into a named list of firms and contacts with how to build a prospect list.