Mega Source Supply

A Construction Building Materials Division of Sustainable Custom Solutions

Welcome to

Mega Source Supply

Welcome to MegaSource Supply, a Building Materials & Construction Supply Enterprise. MSS is an independently owned MBE/DBE/WBE/SBA certified company based in Quincy, Illinois. We are 100% women-owned and provide quality sustainable construction products at competitive pricing. Our customer service is unmatched. We invite you to give us a call and discuss how we can partner together to meet your business procurement goals.  

Our Partners

Our Supplies

LED Lighting

We provide supplies that meet your energy efficiency needs.

Plumbing & Piping

Providing plumbing, piping and industrial supplies.

Bath & Kitchen

Safety equipment for your workers and staff.


Electrical supplies for any size job.

Site Construction

Site Construction supplies for your highway or roadway project.
View Our Supply Catalog

Who We Serve

Construction Contractors

Electrical Contractors

Plumbing Contractors


Mega Source Supply is here to provide your team construction materials and supplies, whether your are a contractor or government agency, we are here to serve any and all of your supply needs.