• Equestrian, Riding

• 370.

United States Pony Clubs Inc

Developing character, leadership, confidence & community through a program that teaches care of horses, riding, & mounted sports.

Machinery Dealers National Association

Machinery Dealers National Association is an international nonprofit trade association.

Machinery Dealers National Association

Machinery Dealers National Association is an international nonprofit trade association.

• Promotion of Business (Chambers of Commerce)

• 373.

Machinery Dealers National Association

Machinery Dealers National Association is an international nonprofit trade association.

• Promotion of Business (Chambers of Commerce)

• 374.

Machinery Dealers National Association

Machinery Dealers National Association is an international nonprofit trade association.

• Equestrian, Riding

• 375.

Washington International Horseshow Association Ltd

67th Annual WIHS, Oct 20-26, 2025 🐎 Longines FEI Jumping World Cup Washington CSI5*-W, Hunters, Jumpers, WIHS Equitation + Championships, Barn Night + Kids Day Established in 1958, the Washington International Horse Show is the country's leading metropolitan indoor horse show with thrilling international world cup jumping, top national hunters, equitation finals, and community and educational events.

• Promotion of Business (Chambers of Commerce)

• 376.

Machinery Dealers National Association

Machinery Dealers National Association is an international nonprofit trade association.

• Gift Distribution

• 377.

Brides Across America Inc

Brides Across America's mission is to gift wedding gowns to our military and first responders.

• Scholarships, Student Financial Aid, Awards

• 378.

HHH EQUINE INC

501c3 nonprofit offering therapeutic animal assisted activities and farm education.