Amentum Layoffs

Layoff Detector tracks official WARN Act notices filed by Amentum across U.S. states. There are 94 filings on record, affecting 4,266 workers from 2020 to 2026.

Total filings

Workers affected

4,266

States

Latest filing

Mar 9, 2026

Filings

Location	Employees Affected	Notice Date	Type	Source
10530 Riverview Road Fort Washington, MD 20744, Maryland	9	Mar 9, 2026	Mass Layoff - No Recall	—
10530 Riverview Road Fort Washington, MD 20744, Maryland	9	Mar 9, 2026	Mass Layoff - No Recall	—
4251 Suitland Road Suitland, MD 20746, Maryland	27	Mar 9, 2026	Mass Layoff - No Recall	—
4251 Suitland Road Suitland, MD 20746, Maryland	27	Mar 9, 2026	Mass Layoff - No Recall	—
Colorado	—	Dec 4, 2025	—	View
Colorado	—	Dec 4, 2025	—	View
Colorado	10	Oct 1, 2025	—	View
Colorado	10	Oct 1, 2025	—	View
Colorado	60	Aug 25, 2025	—	View
Colorado	60	Aug 25, 2025	—	View
Colorado	55	Jul 30, 2025	—	View
Colorado	55	Jul 30, 2025	—	View
Colorado	135	Jun 24, 2025	—	View
Colorado	135	Jun 24, 2025	—	View
Colorado	92	Jun 5, 2025	—	View
Colorado	92	Jun 5, 2025	—	View
Colorado	93	Mar 24, 2025	—	View
Colorado	93	Mar 24, 2025	—	View
Colorado	40	Jan 28, 2025	—	View
Colorado	40	Jan 28, 2025	—	View
Fallon, Nevada	20	Jul 31, 2024	Closure	View
Fort Worth, Arizona	108	Jul 31, 2024	WARN	View
Fort Worth, Arizona	—	Jul 31, 2024	WARN	View
Fallon, Nevada	20	Jul 31, 2024	Closure	View
Fort Worth, Arizona	108	Jul 31, 2024	WARN	View
Fort Worth, Arizona	—	Jul 31, 2024	WARN	View
Colorado	72	Jul 29, 2024	—	View
Colorado	72	Jul 29, 2024	—	View
Falls Church & Springfield VA, Virginia	53	Jul 26, 2024	Closure	—
Falls Church & Springfield VA, Virginia	53	Jul 26, 2024	Closure	—
Colorado	11	May 21, 2024	—	View
Colorado	11	May 21, 2024	—	View
Colorado	45	Jan 30, 2024	—	View
Colorado	45	Jan 30, 2024	—	View
Elizabeth City, North Carolina	92	Dec 14, 2023	Closure	View
Elizabeth City, North Carolina	92	Dec 14, 2023	Closure	View
Colorado	54	Nov 21, 2023	—	View
Colorado	54	Nov 21, 2023	—	View
Colorado	31	Sep 15, 2023	—	View
Colorado	31	Sep 15, 2023	—	View
Colorado	14	Aug 11, 2023	—	View
Colorado	14	Aug 11, 2023	—	View
Colorado	27	Jul 3, 2023	—	View
Colorado	27	Jul 3, 2023	—	View
Everett, Washington	3	May 31, 2023	—	—
Everett, Washington	3	May 31, 2023	—	—
Colorado	19	May 26, 2023	—	View
Colorado	19	May 26, 2023	—	View
Oak Harbor, Washington	194	Oct 31, 2022	—	—
Oak Harbor, Washington	194	Oct 31, 2022	—	—
KENNEDY SPACE CENTER, Florida	188	Oct 12, 2022	—	View
KENNEDY SPACE CENTER, Florida	188	Oct 12, 2022	—	View
California	70	Sep 16, 2022	Layoff Permanent	—
California	70	Sep 16, 2022	Layoff Permanent	—
Virginia Beach VA, Virginia	42	Jun 15, 2022	Layoff	—
Virginia Beach VA, Virginia	42	Jun 15, 2022	Layoff	—
New Boston, Texas	178	Jan 28, 2022	—	—
New Boston, Texas	178	Jan 28, 2022	—	—
New Boston, Texas	92	Aug 30, 2021	—	—
New Boston, Texas	92	Aug 30, 2021	—	—
KEY WEST, Florida	10	Sep 18, 2020	—	View
JACKSONVILLE, Florida	13	Sep 18, 2020	—	View
ALTOONA, Florida	16	Sep 18, 2020	—	View
JACKSONVILLE, Florida	13	Sep 18, 2020	—	View
ALTOONA, Florida	16	Sep 18, 2020	—	View
KEY WEST, Florida	10	Sep 18, 2020	—	View
San Diego, California	4	Sep 17, 2020	Layoff Permanent	—
San Diego, California	4	Sep 17, 2020	Layoff Permanent	—
Virginia Beach VA, Virginia	91	Sep 17, 2020	Layoff	—
Virginia Beach VA, Virginia	91	Sep 17, 2020	Layoff	—
Whidbey Island, Washington	13	Jun 30, 2020	—	—
Whidbey Island, Washington	13	Jun 30, 2020	—	—
San Diego, California	3	Jun 29, 2020	Layoff Permanent	—
San Diego, California	3	Jun 29, 2020	Layoff Permanent	—
Chantilly VA, Virginia	40	May 18, 2020	Layoff	—
Chantilly VA, Virginia	40	May 18, 2020	Layoff	—
Yuma, Arizona	—	Mar 13, 2020	WARN	View
KEY WEST, Florida	10	Mar 13, 2020	—	View
JACKSONVILLE, Florida	9	Mar 13, 2020	—	View
Yuma, Arizona	62	Mar 13, 2020	WARN	View
Yuma, Arizona	—	Mar 13, 2020	WARN	View
Whidbey Island, Washington	13	Mar 13, 2020	—	—
ALTOONA, Florida	15	Mar 13, 2020	—	View
Whidbey Island, Washington	13	Mar 13, 2020	—	—
Yuma, Arizona	62	Mar 13, 2020	WARN	View
JACKSONVILLE, Florida	9	Mar 13, 2020	—	View
KEY WEST, Florida	10	Mar 13, 2020	—	View
ALTOONA, Florida	15	Mar 13, 2020	—	View
Statewide, South Carolina	—	—	—	—
Anniston, Alabama	—	—	—	—
Anniston, Alabama	—	—	—	—
Beaufort, South Carolina	—	—	—	—
Statewide, South Carolina	—	—	—	—
Beaufort, South Carolina	—	—	—	—

10530 Riverview Road Fort Washington, MD 20744, Maryland

Mass Layoff - No Recall

9 employeesMar 9, 2026—

10530 Riverview Road Fort Washington, MD 20744, Maryland

Mass Layoff - No Recall

9 employeesMar 9, 2026—

4251 Suitland Road Suitland, MD 20746, Maryland

Mass Layoff - No Recall

27 employeesMar 9, 2026—

4251 Suitland Road Suitland, MD 20746, Maryland

Mass Layoff - No Recall

27 employeesMar 9, 2026—

Colorado

—

— employeesDec 4, 2025View

Colorado

—

— employeesDec 4, 2025View

Colorado

—

10 employeesOct 1, 2025View

Colorado

—

10 employeesOct 1, 2025View

Colorado

—

60 employeesAug 25, 2025View

Colorado

—

60 employeesAug 25, 2025View

Colorado

—

55 employeesJul 30, 2025View

Colorado

—

55 employeesJul 30, 2025View

Colorado

—

135 employeesJun 24, 2025View

Colorado

—

135 employeesJun 24, 2025View

Colorado

—

92 employeesJun 5, 2025View

Colorado

—

92 employeesJun 5, 2025View

Colorado

—

93 employeesMar 24, 2025View

Colorado

—

93 employeesMar 24, 2025View

Colorado

—

40 employeesJan 28, 2025View

Colorado

—

40 employeesJan 28, 2025View

Fallon, Nevada

Closure

20 employeesJul 31, 2024View

Fort Worth, Arizona

WARN

108 employeesJul 31, 2024View

Fort Worth, Arizona

WARN

— employeesJul 31, 2024View

Fallon, Nevada

Closure

20 employeesJul 31, 2024View

Fort Worth, Arizona

WARN

108 employeesJul 31, 2024View

Fort Worth, Arizona

WARN

— employeesJul 31, 2024View

Colorado

—

72 employeesJul 29, 2024View

Colorado

—

72 employeesJul 29, 2024View

Falls Church & Springfield VA, Virginia

Closure

53 employeesJul 26, 2024—

Falls Church & Springfield VA, Virginia

Closure

53 employeesJul 26, 2024—

Colorado

—

11 employeesMay 21, 2024View

Colorado

—

11 employeesMay 21, 2024View

Colorado

—

45 employeesJan 30, 2024View

Colorado

—

45 employeesJan 30, 2024View

Elizabeth City, North Carolina

Closure

92 employeesDec 14, 2023View

Elizabeth City, North Carolina

Closure

92 employeesDec 14, 2023View

Colorado

—

54 employeesNov 21, 2023View

Colorado

—

54 employeesNov 21, 2023View

Colorado

—

31 employeesSep 15, 2023View

Colorado

—

31 employeesSep 15, 2023View

Colorado

—

14 employeesAug 11, 2023View

Colorado

—

14 employeesAug 11, 2023View

Colorado

—

27 employeesJul 3, 2023View

Colorado

—

27 employeesJul 3, 2023View

Everett, Washington

—

3 employeesMay 31, 2023—

Everett, Washington

—

3 employeesMay 31, 2023—

Colorado

—

19 employeesMay 26, 2023View

Colorado

—

19 employeesMay 26, 2023View

Oak Harbor, Washington

—

194 employeesOct 31, 2022—

Oak Harbor, Washington

—

194 employeesOct 31, 2022—

KENNEDY SPACE CENTER, Florida

—

188 employeesOct 12, 2022View

KENNEDY SPACE CENTER, Florida

—

188 employeesOct 12, 2022View

California

Layoff Permanent

70 employeesSep 16, 2022—

California

Layoff Permanent

70 employeesSep 16, 2022—

Virginia Beach VA, Virginia

Layoff

42 employeesJun 15, 2022—

Virginia Beach VA, Virginia

Layoff

42 employeesJun 15, 2022—

New Boston, Texas

—

178 employeesJan 28, 2022—

New Boston, Texas

—

178 employeesJan 28, 2022—

New Boston, Texas

—

92 employeesAug 30, 2021—

New Boston, Texas

—

92 employeesAug 30, 2021—

KEY WEST, Florida

—

10 employeesSep 18, 2020View

JACKSONVILLE, Florida

—

13 employeesSep 18, 2020View

ALTOONA, Florida

—

16 employeesSep 18, 2020View

JACKSONVILLE, Florida

—

13 employeesSep 18, 2020View

ALTOONA, Florida

—

16 employeesSep 18, 2020View

KEY WEST, Florida

—

10 employeesSep 18, 2020View

San Diego, California

Layoff Permanent

4 employeesSep 17, 2020—

San Diego, California

Layoff Permanent

4 employeesSep 17, 2020—

Virginia Beach VA, Virginia

Layoff

91 employeesSep 17, 2020—

Virginia Beach VA, Virginia

Layoff

91 employeesSep 17, 2020—

Whidbey Island, Washington

—

13 employeesJun 30, 2020—

Whidbey Island, Washington

—

13 employeesJun 30, 2020—

San Diego, California

Layoff Permanent

3 employeesJun 29, 2020—

San Diego, California

Layoff Permanent

3 employeesJun 29, 2020—

Chantilly VA, Virginia

Layoff

40 employeesMay 18, 2020—

Chantilly VA, Virginia

Layoff

40 employeesMay 18, 2020—

Yuma, Arizona

WARN

— employeesMar 13, 2020View

KEY WEST, Florida

—

10 employeesMar 13, 2020View

JACKSONVILLE, Florida

—

9 employeesMar 13, 2020View

Yuma, Arizona

WARN

62 employeesMar 13, 2020View

Yuma, Arizona

WARN

— employeesMar 13, 2020View

Whidbey Island, Washington

—

13 employeesMar 13, 2020—

ALTOONA, Florida

—

15 employeesMar 13, 2020View

Whidbey Island, Washington

—

13 employeesMar 13, 2020—

Yuma, Arizona

WARN

62 employeesMar 13, 2020View

JACKSONVILLE, Florida

—

9 employeesMar 13, 2020View

KEY WEST, Florida

—

10 employeesMar 13, 2020View

ALTOONA, Florida

—

15 employeesMar 13, 2020View

Statewide, South Carolina

—

— employees——

Anniston, Alabama

—

— employees——

Anniston, Alabama

—

— employees——

Beaufort, South Carolina

—

— employees——

Statewide, South Carolina

—

— employees——

Beaufort, South Carolina

—

— employees——

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