Top 6 Injection Molding Manufacturers in Mississippi 2026

Excel Injection Molding

Hattiesburg, Mississippi

Excel Injection Molding was founded in 1995 by John Robinson, CEO, and Randy White, Plant Manager, in Hattiesburg, Mississippi. The company began with 12 employees, six presses, and a 6,000‑square‑foot building.

Richard Plastics Co

Laurel, Mississippi

Richard Plastics Co. has operated from Laurel, Mississippi since 1948, when it was founded to supply custom injection-molded thermoplastic parts at affordable prices.

United Plastic Molders

Jackson, Mississippi60 employees

United Plastic Molders, Inc. was founded in 1978 in Jackson, Mississippi, by William C.

South Central Polymers Inc.

Booneville, Mississippi

South Central Polymers Inc., doing business as SCP Polymers, is a custom thermoplastic injection molding company based in Booneville, Mississippi. The business is led by a management team that includes CEO Bud Hanna, President Joshua S.

Harrison Manufacturing LLC was founded in 2005 by Scott Harrison, a 17-year veteran of the automotive industry, in Jackson, Mississippi. The company is family-owned and operated, and began as a custom manufacturer focused on molded plastics and light assembly.

KDeb Manufacturing Incorporated operates from Morton, Mississippi, where its manufacturing and sales offices are based. The company bears the name of two family matriarchs: “K” for Kay McDaniel, mother of General Manager Blake McDaniel, and “Deb” for Debbie Harper Carver, sister of President Mary Lee McDaniel.