Data update history
July 20, 2026
Posted financials
Added Form 990 for fiscal year 2025
April 7, 2026
Posted financials
Added Form 990 for fiscal year 2024
March 30, 2026
Updated personnel
Identified 12 new personnel
March 30, 2026
Used new vendors
Identified 1 new vendor, including
February 14, 2026
Updated personnel
Identified 7 new personnel
Nonprofit Types
Trade associationsChambers of commerceBusiness and community development organizations
Issues
Business and industry
Characteristics
Legally formed as corporationMembershipsPartially liquidatedState / local levelCommunity engagement / volunteering
General information
- Address
- 1 Research CT Suite 450
- Rockville, MD 20850
- Metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV
- County
- Montgomery County, MD
- Website URL
- rockvillechamber.org/Â
- Phone
- (301) 424-9300
IRS details
- EIN
- 52-0732637
- Fiscal year end
- December
- Taxreturn type
- Form 990
- Year formed
- 1957
- Eligible to receive tax-deductible contributions (Pub 78)
- No
Categorization
- NTEE code, primary
- S41: Promotion of Business
- NAICS code, primary
- 813910: Trade Associations
- Parent/child status
- Independent
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