William Cass

( Massachusetts )
Clients

1) Associated Subcontractors of Massachusetts, Inc.

2) Association of Developmental Disabilities Providers, Inc.

3) Bally's Interactive, LLC

4) Blue Line Solutions LLC

5) Boston Carmen's Union ATU Local 589

6) Conservice, LLC

7) Dell Marketing Limited Partnership

8) eBay, Inc.

9) EchoStor Technologies, LLC

10) EMD Serono, Inc.

11) Engine Manufacturers Association

12) Gainwell Technologies LLC

13) Healthcare Distribution Alliance

14) Juniper Networks, Inc.

15) March of Dimes, Inc.

16) Massachusetts Court Reporters Association

17) Massachusetts Environmental Police Officer's Association

18) Massachusetts Land Title Association, Inc.

19) NATIONAL ASSOCIATION OF INSURANCE AND FINANCIAL AGENTS OF MASSACHUSETTS, INC.

20) National Association of Professional Employer Organizations

21) National Coalition of Assistive & Rehab Technology (NCART)

22) National Safety Council Inc.

23) New England HBPA (Horsemens Benevolent and Protective Association

24) Partnership for Expanded Telemedicine Services (PETS), Inc.

25) PivotX Advisors

26) PROFESSIONAL AMBULANCE AND OXYGEN SERVICE, INC

27) Purfoods, LLC dba Mom's Meals

28) Robinhood Markets, Inc.

29) Sellers, Dorsey & Associates, LLC

30) Seniorlink, Inc.; d/b/a Careforth

31) Senture LLC

32) StubHub, Inc.

33) Subaru of New England, Inc.

34) Telligen Inc.

35) The Synthetic Turf Council, Inc.

36) UNITE USA INC

37) ZOLL Medical Corporation

Last Updated: February 03, 2026