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) H & H Rock Companies

15) Hims & Hers Health, Inc.

16) Horizon Land Company

17) Instacart

18) JMI Management LP

19) Maryland Automobile Dealers Association

20) Maryland REALTORS

21) NaphCare Inc.

22) Nareit

23) PGA of America

24) Pharmaceutical Care Management Association (PCMA)

25) Premium Cigar Retailers Association of Maryland

26) Real Time Medical Systems

27) SCI Management

28) Sheppard Pratt Health Systems

29) Skyline Technology Solutions

30) Solar Landscape

31) Spotless Brands

32) Technology Advancement Center

33) Terra Firma Retreat Center

34) TVI, Inc./Savers

35) Universal Development and Construction

36) UPMC Western Maryland

37) Washington Area New Automobile Dealers Association (WANADA)

38) Waste Management of Maryland

Last Updated: March 08, 2026