Tammy Miller

Director/Board Member at MDU RESOURCES GROUP, INC.

Net worth: 120 138 $ as of 30/08/2026

66 year

32 connections

Producer Manufacturing

Utilities

Consumer Services

Profile

Tammy J.
Miller is an Independent Director at MDU Resources Group, Inc. starting in 2025.
Formerly, served as Chairman & Chief Executive Officer at States Manufacturing Corp.
from 2006 to 2020.
Also served as Independent Director at Skywater Technology, Inc. from 2025 to 2026.
Earned an MBA from Minnesota State University Moorhead.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
MDU RESOURCES GROUP, INC. 0%	11/03/2026	6,031 ( 0% )	120 138 $	30/08/2026

Tammy Miller active positions

Companies	Position	Start
MDU RESOURCES GROUP, INC.	Director/Board Member	11/08/2025

All active positions of Tammy Miller

Former positions of Tammy Miller

Companies	Position	End
SKYWATER TECHNOLOGY, INC.	Director/Board Member	30/07/2026
States Manufacturing Corp. States Manufacturing Corp. Electrical ProductsProducer Manufacturing Designs and manufactures switchgears, switches, current transformer cabinets, control panel enclosures & metal fabricated products	Chief Executive Officer	29/02/2020

See the detail of Tammy Miller's experience

Training of Tammy Miller

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

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Connections

1st degree connections

1st degree companies

Male

Female

Members of the board

Executives

See the personal network

Linked companies

Private companies	4
MDU Resources Group, Inc. MDU Resources Group, Inc. Gas DistributorsUtilities Provides natural resource products and related services	Utilities
States Manufacturing Corp. States Manufacturing Corp. Electrical ProductsProducer Manufacturing Designs and manufactures switchgears, switches, current transformer cabinets, control panel enclosures & metal fabricated products	Producer Manufacturing
Minnesota State University Moorhead Minnesota State University Moorhead Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Skywater Technology, Inc. Skywater Technology, Inc. Industrial MachineryProducer Manufacturing Provides wafer services	Producer Manufacturing