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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 |
|---|---|---|---|---|---|
| ZENAS BIO | Professional Services | Self-funded | 132 | 2025 | Disclosed |
| TOXIKON, INC. | Professional Services | Self-funded | 130 | 2022 | Disclosed |
| KNOWLEDGE MANAGEMENT, INC. | Professional Services | Self-funded | 130 | 2024 | Disclosed |
| NCIIA | Professional Services | Fully insured | 130 | 2024 | Disclosed |
| THE CM GROUP | Professional Services | Self-funded | 130 | 2022 | Disclosed |
| NEOSCAPE | Professional Services | Self-funded | 129 | 2023 | Disclosed |
| WOODWELL CLIMATE RESEARCH CENTER | Professional Services | Self-funded | 128 | 2024 | Disclosed |
| COMNISCIENT TECHNOLOGIES, LLC | Professional Services | Fully insured | 128 | 2024 | Disclosed |
| BALLENTINE PARTNERS, LLC | Professional Services | Self-funded | 128 | 2025 | Disclosed |
| ALBIREO PHARMA, INC. | Professional Services | Self-funded | 128 | 2023 | Disclosed |
| VICARIOUS SURGICAL INC. | Professional Services | Self-funded | 126 | 2024 | Disclosed |
| DRAGONFLY THERAPEUTICS, INC | Professional Services | Self-funded | 126 | 2021 | Disclosed |
| CAPSULE TECHNOLOGIES | Professional Services | Self-funded | 125 | 2021 | Disclosed |
| AVEO PHARMACEUTICALS, INC. | Professional Services | Self-funded | 124 | 2023 | Disclosed |
| BRIGHTTALK | Professional Services | Self-funded | 123 | 2022 | Disclosed |
| SQZ BIOTECHNOLOGIES COMPANY | Professional Services | Self-funded | 123 | 2023 | Disclosed |
| PARABILIS MEDICINES | Professional Services | Self-funded | 123 | 2024 | Disclosed |
| MATTER COMMUNICATIONS, INC. | Professional Services | Fully insured | 123 | 2025 | Disclosed |
| LPM HOLDING COMPANY, INC. | Professional Services | Self-funded | 121 | 2024 | Disclosed |
| NITSCH ENGINEERING, INC. | Professional Services | Self-funded | 121 | 2025 | Disclosed |
| KEYSTONE PARTNERS | Professional Services | Self-funded | 120 | 2024 | Disclosed |
| CAPTIVATE, LLC | Professional Services | Self-funded | 120 | 2025 | Disclosed |
| SCORPION THERAPEUTICS, INC. | Professional Services | Self-funded | 120 | 2023 | Disclosed |
| SIEGAL & SONS INVESTMENTS | Professional Services | Fully insured | 119 | 2024 | Disclosed |
| AVROBIO, INC. | Professional Services | Fully insured | 119 | 2021 | Disclosed |
| REVENEER, INC. | Professional Services | Self-funded | 118 | 2024 | Disclosed |
| SOLID BIOSCIENCES, INC. | Professional Services | Self-funded | 118 | 2025 | Disclosed |
| DEI SYSTEMS LLC | Professional Services | Self-funded | 117 | 2024 | Disclosed |
| GRADCO, LLC D/B/A GRADIENT | Professional Services | Fully insured | 116 | 2024 | Disclosed |
| GALE ASSOCIATES, INC. | Professional Services | Fully insured | 115 | 2025 | Disclosed |
| AHA CONSULTING ENGINEERS, INC. | Professional Services | Self-funded | 115 | 2024 | Disclosed |
| BOARD AMERICAS, INC. | Professional Services | Self-funded | 115 | 2025 | Disclosed |
| OMEGA THERAPEUTICS, INC. | Professional Services | Self-funded | 114 | 2023 | Disclosed |
| CBSET, INC | Professional Services | Fully insured | 114 | 2024 | Disclosed |
| MCNAMARA/SALVIA, INC. | Professional Services | Self-funded | 113 | 2025 | Disclosed |
| LIGHTFORCE ORTHODONTICS | Professional Services | Self-funded | 113 | 2024 | Disclosed |
| MURAL ONCOLOGY, INC. | Professional Services | Fully insured | 113 | 2024 | Disclosed |
| AKILI INTERACTIVE LABS, INC. | Professional Services | Self-funded | 111 | 2022 | Disclosed |
| C4 THERAPEUTICS, INC. | Professional Services | Fully insured | 110 | 2024 | Disclosed |
| DYNO THERAPEUTICS | Professional Services | Self-funded | 110 | 2023 | Disclosed |
| VECNA ROBOTICS, INC. | Professional Services | Fully insured | 110 | 2024 | Disclosed |
| BOSTON DOCUMENT SYSTEMS, INC. | Professional Services | Fully insured | 110 | 2024 | Disclosed |
| EDITAS MEDICINE, INC. | Professional Services | Self-funded | 109 | 2025 | Disclosed |
| CULLINAN THERAPEUTICS, INC. | Professional Services | Self-funded | 109 | 2025 | Disclosed |
| AURA BIOSCIENCES | Professional Services | Self-funded | 108 | 2024 | Disclosed |
| CBT ARCHITECTS | Professional Services | Self-funded | 107 | 2025 | Disclosed |
| INKHOUSE LLC | Professional Services | Fully insured | 107 | 2022 | Disclosed |
| FRACTYL HEALTH, INC | Professional Services | Self-funded | 107 | 2024 | Disclosed |
| T3 EXPO, LLC | Professional Services | Fully insured | 106 | 2024 | Disclosed |
| VALO HEALTH | Professional Services | Self-funded | 105 | 2024 | Disclosed |
| APTIMA, INC. | Professional Services | Fully insured | 103 | 2025 | Disclosed |
| PRAXIS PRECISION MEDICINES, INC. | Professional Services | Self-funded | 102 | 2024 | Disclosed |
| PROFESSIONAL AMBULANCE & OXYGEN SERVICE, INC. | Professional Services | Self-funded | 101 | 2024 | Disclosed |
| ANTARES THERAPEUTICS, INC. | Professional Services | Self-funded | 101 | 2025 | Disclosed |
| 24M TECHNOLOGIES INC | Professional Services | Self-funded | 100 | 2024 | Disclosed |
| TEIKAMETRICS, LLC | Professional Services | Fully insured | 100 | 2024 | Disclosed |
| KORRO BIO, INC | Professional Services | Self-funded | 100 | 2025 | Disclosed |
| ROSLINCT US HOLDINGS LLC | Professional Services | Self-funded | 98 | 2024 | Disclosed |
| NEUMORA THERAPEUTICS, INC. | Professional Services | Self-funded | 95 | 2025 | Disclosed |
| BICYCLE THERAPEUTICS INC | Professional Services | Self-funded | 94 | 2025 | Disclosed |
| MICHAEL VAN VALKENBURGH ASSOCIATES, INC. | Professional Services | Self-funded | 92 | 2023 | Disclosed |
| NATIVE INSTRUMENTS USA, INC. | Professional Services | Self-funded | 91 | 2024 | Disclosed |
| THOUGHT INDUSTRIES, INC. | Professional Services | Self-funded | 91 | 2023 | Disclosed |
| ARBOR BIOTECHNOLOGIES, INC. | Professional Services | Self-funded | 89 | 2025 | Disclosed |
| CENTER FOR ECOTECHNOLOGY | Professional Services | Self-funded | 87 | 2025 | Disclosed |
| LIFEMINE THERAPEUTICS | Professional Services | Self-funded | 87 | 2023 | Disclosed |
| ODYSSEY THERAPEUTICS | Professional Services | Self-funded | 87 | 2025 | Disclosed |
| CODIAK BIOSCIENCES, INC. HEALTH AND WELFARE BENEFIT PLAN | Professional Services | Self-funded | 86 | 2022 | Disclosed |
| FORTRESS BIOTECH INC | Professional Services | Fully insured | 80 | 2025 | Disclosed |
| DELTA MANAGEMENT ASSOCIATES, INC. | Professional Services | Fully insured | 78 | 2019 | Disclosed |
| SPECTRUM PHARMACEUTICALS, INC. | Professional Services | Self-funded | 77 | 2022 | Disclosed |
| IRONWOOD PHARMACEUTICALS, INC. | Professional Services | Self-funded | 76 | 2025 | Disclosed |
| EMBARK VETERINARY INC | Professional Services | Fully insured | 75 | 2023 | Disclosed |
| SPAGNOLO GISNESS & ASSOCIATES | Professional Services | Self-funded | 74 | 2023 | Disclosed |
| TOOLSGROUP, INC | Professional Services | Fully insured | 72 | 2024 | Disclosed |
| 2SEVENTY BIO, INC. | Professional Services | Self-funded | 69 | 2024 | Disclosed |
| 6K INC. | Professional Services | Self-funded | 68 | 2025 | Disclosed |
| TRUE FIT CORPORATION | Professional Services | Self-funded | 64 | 2021 | Disclosed |
| INVAIO SCIENCES, INC. | Professional Services | Self-funded | 63 | 2024 | Disclosed |
| BAIM INSTITUTE FOR CLINICAL RESEARCH INC. | Professional Services | Self-funded | 55 | 2025 | Disclosed |
| MERSANA THERAPEUTICS, INC. | Professional Services | Self-funded | 51 | 2024 | Disclosed |
| CLEARMOTION, INC. | Professional Services | Self-funded | 51 | 2022 | Disclosed |
| SPERO THERAPEUTICS, INC. | Professional Services | Self-funded | 51 | 2021 | Disclosed |
| INTEGRATED STATISTICS INC | Professional Services | Self-funded | 1 | 2024 | Disclosed |
| PHYSICAL SCIENCES INC. | Professional Services | Self-funded | — | 2021 | Disclosed |
| CHANG PUBLISHING CO., INC. | Professional Services | Fully insured | — | 2021 | Disclosed |
| PURETECH MANAGGEMENT | Professional Services | Fully insured | — | 2021 | Disclosed |
| TURBONOMIC, INC. | Professional Services | Self-funded | — | 2021 | Disclosed |
| GOAL GROUP, INC. | Professional Services | Self-funded | — | 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.