Gwendolyn Mizell

Director/Board Member at GIBRALTAR INDUSTRIES, INC.

Net worth: 2 M $ as of 2026-06-29

64 year

49 connections

Consumer Services

Utilities

Producer Manufacturing

Profile

Gwendolyn G.
Mizell currently serves as Independent Director at Gibraltar Industries, Inc. since 2021, Director at the American Association of Blacks in Energy, Director at the St Louis County Workforce Investment Board, and Chief Sustainability Officer & Senior VP at Ameren Corp.
since 2015.
Former roles include President & Chief Executive Officer at GSM Development LLC from 2009 to 2015 and Director at Mathews-Dickey Boys' & Girls' Club.
Education includes graduate studies at Carnegie Mellon University and undergraduate studies at The University of Alabama at Birmingham.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
AMEREN CORPORATION 0%	2026-02-26	8,748 ( 0% )	988 874 $	2026-06-29
GIBRALTAR INDUSTRIES, INC. 0.04%	2026-05-06	12,734 ( 0.04% )	574 303 $	2026-06-29

Gwendolyn Mizell active positions

Companies	Position	Start
GIBRALTAR INDUSTRIES, INC.	Director/Board Member	2021-02-23
AMEREN CORPORATION	Corporate Officer/Principal	2014-12-31
American Association of Blacks in Energy	Director/Board Member	-
St Louis County Workforce Investment Board	Director/Board Member	-

All active positions of Gwendolyn Mizell

Former positions of Gwendolyn Mizell

Companies	Position	End
GSM Development LLC GSM Development LLC Wholesale DistributorsDistribution Services Wholesales industrial supplies for utility clients	Chief Executive Officer	2015-10-30
Mathews-Dickey Boys' & Girls' Club Mathews-Dickey Boys' & Girls' Club Movies/EntertainmentConsumer Services Provides sports and educational programs services	Director/Board Member	-

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Training of Gwendolyn Mizell

Experiences
Positions held

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Private companies

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Connections

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Female

Members of the board

Executives

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Linked companies

Private companies	8
Ameren Corp. Ameren Corp. Electric UtilitiesUtilities Engages in electric generation, transmission and natural gas distribution services	Utilities
Gibraltar Industries, Inc. Gibraltar Industries, Inc. Metal FabricationProducer Manufacturing Manufactures expanded metal products, cold-rolled strip steel, coated steel products, and nonferrous metals powder products	Producer Manufacturing
Carnegie Mellon University Carnegie Mellon University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
American Association of Blacks in Energy
The University of Alabama at Birmingham The University of Alabama at Birmingham Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Mathews-Dickey Boys' & Girls' Club Mathews-Dickey Boys' & Girls' Club Movies/EntertainmentConsumer Services Provides sports and educational programs services	Consumer Services
GSM Development LLC GSM Development LLC Wholesale DistributorsDistribution Services Wholesales industrial supplies for utility clients	Distribution Services
St Louis County Workforce Investment Board