Private company

National Gypsum

American gypsum corporation

National Gypsum Company is a company based in Charlotte, North Carolina, that produces drywall gypsum boards in the US. It has 17 gypsum board plants in the US and presents itself as a fully integrated building products manufacturer. It is a private company, incorporated as New NGC, Inc. in 1993 after previously filing for Chapter 11 bankruptcy in 1990.2 It was founded by Melvin H. Baker.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

  • HeadquartersCharlotte1
National Gypsum Building, Buffalo, New York - 20190906
Photo: Andre Carrotflower, CC BY-SA 4.0, via Wikimedia Commons3

National Gypsum Company is a company based in Charlotte, North Carolina, that produces drywall gypsum boards in the US. It has 17 gypsum board plants in the US and presents itself as a fully integrated building products manufacturer. It is a private company, incorporated as New NGC, Inc. in 1993 after previously filing for Chapter 11 bankruptcy in 1990. In 1995, Clemmie Spangler took over National Gypsum for $1.2 billion, through Delcor Inc., a private investment company controlled by him. Spangler had been chairman of National Gypsum and owned 20% of the company, and his family went on to own the whole company.2

Corporate structure

National Gypsum sits at the top of its group. 1 entity, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

  • National Gypsum Charlotte
    • National Gypsum Mine Owned ยท Halifax County, Canada

Built from subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What National Gypsum reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Stakes and holdings (Wikidata)

  • National Gypsum Mine

Things Wikidata records the company as owning, with the share when stated.1

The story

Founded by Melvin H. Baker.1

Leadership

Who has led National Gypsum, and when. Pick a name to see everywhere that person has worked.

Products and brands

  • gypsum drywall

Listed on Wikidata.1

Subsidiaries and ownership

Also owns

  • National Gypsum Mine

From Wikidata.1

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2
  3. 3