Manna Supply, Inc. (MWBE)

WholesalePennsylvania, United States11-50 Employees

Manna Supply, Inc. is a Philadelphia-based, award-winning wholesale stocking distributor serving the construction industry with a wide range of supply products and equipment. We specialize in Electrical, Mechanical, Plumbing, Fire Suppression, Data Communications, Safety/Security, and General Construction materials — proudly supporting projects across multiple trades and divisions.

Founded in 1993 by Elaine Prince, Manna Supply was built on the vision of empowering certified small businesses to participate in government contracting. Elaine’s deep expertise in electrical contracting and communications infrastructure laid the foundation for our growth and reputation. Over the years, we’ve expanded our product lines, certifications, and partnerships across industries and state lines.

Today, Manna Supply is proudly owned and operated by sisters Shannon Martin and Amanda MacSweeney, who bring fresh energy and a shared commitment to continuing Elaine’s legacy. With backgrounds in business, sales, operations, and customer service, Shannon and Amanda are passionate about delivering value, building lasting relationships, and creating opportunities for diverse suppliers.

As women leading in a traditionally male-dominated industry, Shannon and Amanda are also deeply committed to opening doors for the next generation of women in construction. Through mentorship, visibility, and advocacy, they aim to inspire young women to explore careers in the trades and see themselves as future leaders in the field. 

Our headquarters and 10,000 sq ft warehouse are located in the heart of Philadelphia, PA.

We supply equipment across the following divisions:
- Division 10: Toilet Partitions, Lockers, Visual Display Boards etc.)
- Division 21: Fire Suppression
- Division 23: Mechanical/HVAC
- Division 25: Integrated Automation
- Division 26: Electrical (Switchgear, Lighting, Cable/Conduit)
- Division 27: Data and Communications
- Division 28: Safety & Security

Certified MWBE, DBE, SDB, SBE

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