Data update history
February 23, 2025
Posted financials
Added Form 990 for fiscal year 2023
December 1, 2023
Posted financials
Added Form 990 for fiscal year 2022
November 27, 2023
Used new vendors
Identified 1 new vendor, including
July 16, 2023
Posted financials
Added Form 990 for fiscal year 2021
July 5, 2023
Updated personnel
Identified 3 new personnel
Nonprofit Types
Professional associationsBusiness and community development organizationsHeadquarter / parent organizations
Issues
HealthScience and technologyBusiness and industry
Characteristics
MembershipsState / local level
General information
- Address
- 45 Beekman Ave Unit 727
- Sleepy Hollow, NY 10591
- Metro area
- New York-Newark-Jersey City, NY-NJ-PA
- County
- Westchester County, NY
- Website URL
- wcms.org/Â
- Phone
- (914) 967-9100
IRS details
- EIN
- 13-1720610
- Fiscal year end
- December
- Taxreturn type
- Form 990
- Year formed
- 1935
- Eligible to receive tax-deductible contributions (Pub 78)
- No
Categorization
- NTEE code, primary
- S41: Promotion of Business
- NAICS code, primary
- 813920: Professional Associations
- Parent/child status
- Central organization
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