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289 professional services employers in Massachusetts have substantive broker records on their Form 5500 filings. Median disclosed broker cost in this group runs about $34 per participant per month. Open any company to see its broker of record, disclosed compensation, and benefit lines — or step back to all Massachusetts employers.
| Company | Industry | Plan type | Participants | Latest filing | Broker comp |
|---|---|---|---|---|---|
| WAYFAIR LLC | Professional Services | Self-funded | 9.3K | 2025 | Disclosed |
| CHARLES RIVER LABORATORIES, INC | Professional Services | Self-funded | 9K | 2025 | Disclosed |
| VEOLIA NORTH AMERICA, LLC. | Professional Services | Self-funded | 6.8K | 2024 | Disclosed |
| PAREXEL INTERNATIONAL CORPORATION | Professional Services | Self-funded | 5.7K | 2024 | Disclosed |
| VETCOR PROFESSIONAL PRACTICES LLC | Professional Services | Self-funded | 5.5K | 2022 | Disclosed |
| VERTEX PHARMACEUTICALS INCORPORATED | Professional Services | Self-funded | 5.2K | 2025 | Disclosed |
| BHI ENERGY | Professional Services | Self-funded | 4.8K | 2023 | Disclosed |
| CDM SMITH, INC. | Professional Services | Self-funded | 4.1K | 2025 | Disclosed |
| AKAMAI TECHNOLOGIES, INC. | Professional Services | Self-funded | 3.8K | 2025 | Disclosed |
| UNITED SITE SERVICES, INC. | Professional Services | Self-funded | 3.8K | 2025 | Disclosed |
| REVVITY, INC. | Professional Services | Self-funded | 2.5K | 2025 | Disclosed |
| AQUENT, LLC | Professional Services | Self-funded | 2.2K | 2025 | Disclosed |
| VANASSE HANGEN BRUSTLIN, INC. | Professional Services | Self-funded | 1.9K | 2024 | Disclosed |
| ALNYLAM PHARMACEUTICALS, INC. | Professional Services | Self-funded | 1.8K | 2024 | Disclosed |
| ABIOMED, INC. | Professional Services | Self-funded | 1.7K | 2023 | Disclosed |
| ALKERMES INC. | Professional Services | Self-funded | 1.6K | 2024 | Disclosed |
| KLAVIYO, INC. | Professional Services | Self-funded | 1.5K | 2025 | Disclosed |
| WOODS HOLE OCEANOGRAPHIC INSTITUTION | Professional Services | Self-funded | 1.5K | 2024 | Disclosed |
| CARE ACCESS RESEARCH LLC | Professional Services | Self-funded | 1.5K | 2023 | Disclosed |
| ODYSSEY SYSTEMS CONSULTING GROUP, LTD | Professional Services | Self-funded | 1.4K | 2024 | Disclosed |
| RESOURCE MANAGEMENT INC | Professional Services | Fully insured | 1.3K | 2025 | Disclosed |
| AMERESCO, INC. | Professional Services | Self-funded | 1.3K | 2025 | Disclosed |
| PRIMARK US CORP | Professional Services | Self-funded | 1.3K | 2025 | Disclosed |
| SENIOR LIVING RESIDENCE, LLC | Professional Services | Self-funded | 1.2K | 2025 | Disclosed |
| ABT ASSOCIATES, INC. | Professional Services | Self-funded | 1.2K | 2023 | Disclosed |
| ABT GLOBAL, INC. | Professional Services | Self-funded | 1.2K | 2024 | Disclosed |
| COMMONWEALTH FUSION HR, LLC | Professional Services | Self-funded | 1.2K | 2025 | Disclosed |
| GEI CONSULTANTS, INC. | Professional Services | Self-funded | 1.1K | 2025 | Disclosed |
| FLAGSHIP PIONEERING | Professional Services | Self-funded | 1.1K | 2025 | Disclosed |
| HALEY & ALDRICH, INC. | Professional Services | Self-funded | 1.1K | 2025 | Disclosed |
| SIMPLISAFE, INC | Professional Services | Self-funded | 1.1K | 2025 | Disclosed |
| CORNERSTONE RESEARCH, INC. | Professional Services | Self-funded | 1K | 2025 | Disclosed |
| ETHOS VETERINARY HEALTH, LLC | Professional Services | Self-funded | 1K | 2023 | Disclosed |
| DINING ALLIANCE | Professional Services | Self-funded | 1K | 2024 | Disclosed |
| BOSTON DYNAMICS | Professional Services | Self-funded | 934 | 2025 | Disclosed |
| BUYERS EDGE PLATFORM, LLC | Professional Services | Self-funded | 930 | 2025 | Disclosed |
| ENGAGESMART, INC. | Professional Services | Self-funded | 921 | 2024 | Disclosed |
| WESTON AND SAMPSON,INC. | Professional Services | Self-funded | 920 | 2024 | Disclosed |
| HARTE HANKS, INC. | Professional Services | Self-funded | 917 | 2024 | Disclosed |
| CONSTANT CONTACT, INC. | Professional Services | Self-funded | 910 | 2025 | Disclosed |
| FORM ENERGY, INC. | Professional Services | Self-funded | 894 | 2025 | Disclosed |
| TUV SUD AMERICA INC. | Professional Services | Self-funded | 857 | 2025 | Disclosed |
| SYSTEMS & TECHNOLOGY RESEARCH | Professional Services | Self-funded | 849 | 2025 | Disclosed |
| TRANSMEDICS, INC. | Professional Services | Self-funded | 834 | 2025 | Disclosed |
| COHERE HEALTH, INC | Professional Services | Self-funded | 788 | 2025 | Disclosed |
| GZA GEOENVIRONMENTAL, INC. | Professional Services | Self-funded | 784 | 2025 | Disclosed |
| ALPHA ANALYTICAL, INC. | Professional Services | Self-funded | 766 | 2023 | Disclosed |
| ALEXION PHARMACEUTICALS, INC. | Professional Services | Self-funded | 737 | 2024 | Disclosed |
| THE RMR GROUP | Professional Services | Self-funded | 734 | 2024 | Disclosed |
| SIMPSON GUMPERTZ & HEGER INC. | Professional Services | Self-funded | 733 | 2024 | Disclosed |
| BULLHORN, INC. | Professional Services | Self-funded | 720 | 2025 | Disclosed |
| ARGENX US, INC | Professional Services | Fully insured | 717 | 2025 | Disclosed |
| IPSEN BIOPHARMACEUTICALS, INC | Professional Services | Self-funded | 708 | 2025 | Disclosed |
| BIONTECH US INC. | Professional Services | Self-funded | 677 | 2024 | Disclosed |
| EASTERN RESEARCH GROUP, INC. | Professional Services | Fully insured | 664 | 2024 | Disclosed |
| TRINITY PARTNERS, LLC. | Professional Services | Self-funded | 647 | 2025 | Disclosed |
| LIONBRIDGE TECHNOLOGIES, LLC | Professional Services | Self-funded | 643 | 2025 | Disclosed |
| MOTIONAL AD, INC. | Professional Services | Self-funded | 608 | 2025 | Disclosed |
| TIGHE & BOND, INC. | Professional Services | Self-funded | 601 | 2025 | Disclosed |
| LOGIXHEALTH, INC. | Professional Services | Self-funded | 594 | 2025 | Disclosed |
| BLUEPRINT MEDICINES CORPORATION | Professional Services | Self-funded | 591 | 2025 | Disclosed |
| DPS GROUP, INC. | Professional Services | Self-funded | 568 | 2024 | Disclosed |
| THE VERTEX COMPANIES, LLC | Professional Services | Self-funded | 547 | 2025 | Disclosed |
| THE DENNIS GROUP, INC. | Professional Services | Self-funded | 545 | 2025 | Disclosed |
| AGIOS PHARMACEUTICALS, INC. | Professional Services | Self-funded | 544 | 2025 | Disclosed |
| NORTHEAST SECURITY INC. | Professional Services | Fully insured | 533 | 2024 | Disclosed |
| CELL SIGNALING TECHNOLOGY, INC. | Professional Services | Self-funded | 529 | 2024 | Disclosed |
| BARD RAO & ATHANAS CONSULTING ENGINEERS LLC | Professional Services | Self-funded | 495 | 2025 | Disclosed |
| R. G. VANDERWEIL ENGINEERS, LLP | Professional Services | Self-funded | 489 | 2025 | Disclosed |
| SAGE THERAPEUTICS, INC. | Professional Services | Self-funded | 489 | 2025 | Disclosed |
| ETHOS CALIFORNIA VETERINARY GROUP | Professional Services | Self-funded | 484 | 2023 | Disclosed |
| NEXAMP, INC. | Professional Services | Self-funded | 474 | 2025 | Disclosed |
| MONSTER WORLDWIDE INC. | Professional Services | Self-funded | 455 | 2024 | Disclosed |
| AMERICAN WELL CORPORATION | Professional Services | Self-funded | 455 | 2025 | Disclosed |
| INVOICECLOUD | Professional Services | Self-funded | 446 | 2025 | Disclosed |
| BEAM THERAPEUTICS | Professional Services | Self-funded | 430 | 2024 | Disclosed |
| COLLEGIUM PHARMACEUTICAL, INC. | Professional Services | Self-funded | 423 | 2025 | Disclosed |
| ALLIED ADVERTISING LIMITED PARTNER | Professional Services | Self-funded | 423 | 2024 | Disclosed |
| ARDELYX, INC. | Professional Services | Self-funded | 399 | 2024 | Disclosed |
| CLINICAL SERVICES CORPORATE OPERATIONS, INC. | Professional Services | Self-funded | 394 | 2025 | Disclosed |
| ELEVATEBIO LLC | Professional Services | Self-funded | 392 | 2024 | Disclosed |
| ORA INC. | Professional Services | Self-funded | 389 | 2025 | Disclosed |
| CRISPR THERAPEUTICS, INC. | Professional Services | Self-funded | 388 | 2025 | Disclosed |
| QUANTERIX CORPORATION | Professional Services | Self-funded | 380 | 2025 | Disclosed |
| GORDON BROTHERS GROUP LLC | Professional Services | Self-funded | 379 | 2024 | Disclosed |
| INTELLIA THERAPEUTICS, INC. | Professional Services | Self-funded | 371 | 2025 | Disclosed |
| SIMON-KUCHER AND PARTNERS STRATEGY AND MARKETING CONSULTANTS, LLC | Professional Services | Self-funded | 368 | 2025 | Disclosed |
| CEREVEL THERAPEUTICS, LLC | Professional Services | Self-funded | 365 | 2024 | Disclosed |
| EQRX INTERNATIONAL, INC. | Professional Services | Self-funded | 360 | 2022 | Disclosed |
| VERACODE, INC. | Professional Services | Self-funded | 359 | 2025 | Disclosed |
| CANDELA CORPORATION | Professional Services | Self-funded | 352 | 2025 | Disclosed |
| ARCADIA HEALTHCARE SOLUTIONS, LLC | Professional Services | Self-funded | 344 | 2025 | Disclosed |
| MILLSTONE MEDICAL OUTSOURCING | Professional Services | Fully insured | 342 | 2025 | Disclosed |
| IROBOT CORPORATION | Professional Services | Self-funded | 332 | 2024 | Disclosed |
| TUV RHEINLAND OF N.A. INC. | Professional Services | Self-funded | 330 | 2024 | Disclosed |
| DICERNA PHARMACEUTICALS, INC. | Professional Services | Self-funded | 324 | 2021 | Disclosed |
| MASIS STAFFING SOLUTIONS | Professional Services | Self-funded | 323 | 2024 | Disclosed |
| CAMBRIDGE MOBILE TELEMATICS, INC. | Professional Services | Self-funded | 320 | 2025 | Disclosed |
| TESSERA THERAPEUTICS, INC. | Professional Services | Self-funded | 317 | 2025 | Disclosed |
| PRISMHR, INC. | Professional Services | Fully insured | 305 | 2021 | Disclosed |
Sourced from Form 5500 filings as submitted to the U.S. Department of Labor. Dataset refreshed October 7, 2026. Plan years are labeled by the year they begin, so a July 2024 – June 2025 plan year is 2024. Filings may lag 12–18 months behind the current plan year.