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) PGA of America

22) Pharmaceutical Care Management Association (PCMA)

23) Premium Cigar Retailers Association of Maryland

24) Real Time Medical Systems

25) SCI Management

26) Sheppard Pratt Health Systems

27) Skyline Technology Solutions

28) Solar Landscape

29) Spotless Brands

30) Technology Advancement Center

31) Terra Firma Retreat Center

32) TVI, Inc./Savers

33) Universal Development and Construction

34) UPMC Western Maryland

35) Washington Area New Automobile Dealers Association (WANADA)

36) Waste Management of Maryland

Last Updated: January 20, 2026