William Castelli

( Maryland )
  • 225 Duke of Gloucester StreetSuite 200AnnapolisMD21401

Clients

1) ASC Engineered Solutions

2) Berkshire Hathaway Energy GT&S, LLC

3) Board of County Commissioners of Allegany County, MD

4) Brown Advisory

5) Cable Telecommunications Association of Maryland, Delaware and D.C., Inc.

6) Colonial Pipeline Company

7) Corebridge Financial Group

8) Curio Wellness

9) Empower

10) Enterprise RAC Company of Baltimore, LLC and its Affiliates DBA Enterprise Mobility

11) FedEx Corporation

12) Friends of Patapsco Valley State Park

13) Google LLC and its Affiliates

14) Hims & Hers Health, Inc.

15) Horizon Land Company

16) JMI Management LP

17) Maryland Automobile Dealers Association

18) Maryland REALTORS

19) NaphCare Inc.

20) Nareit

21) Pepco Holdings, LLC.

22) PGA of America

23) Pharmaceutical Care Management Association (PCMA)

24) Premium Cigar Retailers Association of Maryland

25) Real Time Medical Systems

26) SCI Management

27) Sheppard Pratt Health Systems

28) Skyline Technology Solutions

29) Solar Landscape

30) Spotless Brands

31) Technology Advancement Center

32) Terra Firma Retreat Center

33) TVI, Inc./Savers

34) Universal Development and Construction

35) UPMC Western Maryland

36) Washington Area New Automobile Dealers Association (WANADA)

37) Waste Management of Maryland

Last Updated: December 18, 2025