About Us

MrSupply.com is an e-commerce division of Grant Supplies. Since its founding in 1986, Grant Supplies has become one of America's leading suppliers of electrical, security and plumbing products.

Our main headquarter is located in Long Island City, New York, where we have proudly served the entire tri-state area for over three decades. In 2008, an additional location was introduced in South Hackensack, New Jersey. In 2009, to further provide our New Jersey customers with continuous excellent service, Grant Supplies acquired Newark Light Inc. in Belleville, New Jersey.

With over 30 years in the industry, Grant Supplies maintains direct relationships with many leading manufacturers, ensuring quick access and an abundant supply of materials at very competitive prices. We are confident in our ability to keep popular items well-stocked and ready to ship.

We strive to continue to build and hold our reputation around product availability, accuracy and efficiency, fast shipping, and unbeatable pricing at MrSupply.com.

We thank you for visiting us and look forward to providing you with more products and services. Please contact us with any questions or concerns at 1-888-884-0911 or e-mail us at support@mrsupply.com. We appreciate your business!

Business Hours

Monday ~ Friday : 8:00am ~ 5:00pm EST
Saturday : 7am ~ 12:00pm EST

Holiday Schedule : We are closed on New year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.