Formation and Nature of Business Operations	6 Months Ended
Jun. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Formation and Nature of Business Operations	1. Formation and Nature of Business Operations Karman Holdings Inc. (the “Company”) conducts business as Karman Space and Defense (“Karman”). Karman’s predecessor, TCFIII Spaceco Holdings LLC, was formed in August 2020 and, in connection with the Company’s initial public offering, converted into a Delaware corporation as Karman Holdings Inc. Karman is headquartered in Huntington Beach, California. It currently operates seven subsidiaries in Brea, California, El Monte, California, Huntington Beach, California, Mukilteo, Washington, Wilsonville Oregon, Albany, Oregon, Ogden, Utah and Cedar City, Utah. Karman specializes in the rapid design, development and production of critical, next-generation system solutions for launch vehicle, satellite, spacecraft, missile defense, hypersonic and Unmanned Aircraft Systems (“UAS”) customers. Karman’s integrated payload protection, propulsion, and interstage system solutions are deployed across a wide variety of existing and emerging programs supporting important Department of Defense (“DoD”) and space sector initiatives. As of June 30, 2025, Karman’s seven wholly-owned subsidiaries are: 1. Aerospace Engineering, LLC (“AEC”), a limited liability company, purchased August 28, 2020 2. AMRO Fabricating Corporation (“AMRO”), a C-corporation, purchased October 28, 2020 3. American Automated Engineering, Inc. (“AAE”), a C-corporation, purchased December 21, 2020 4. Systima Technologies, Inc. (“Systima”), a C-corporation, purchased September 14, 2021 5. Rapid Machine Solutions – Wolcott Design Services, LLC (“RMS”), a limited liability company, purchased February 16, 2024 6. Metal Technology Inc. (“MTI”), a limited liability company, purchased April 2, 2025 7. Industrial Solid Propulsion (“ISP”), an S-corporation, purchased May 28, 2025 Initial Public Offering On February 12, 2025 the Company’s Registration Statement on Form S-1 for its initial public offering (the “IPO”) was declared effective. Prior to the effectiveness of the IPO, the Company was a Delaware limited liability company named TCFIII Spaceco Holdings LLC. On February 12, 2025, the Company converted into a Delaware corporation and changed the name to Karman Holdings Inc. Pursuant to the conversion, all outstanding equity interests and all outstanding P Units were converted into an aggregate of 123.8 million shares of common stock of Karman Holdings Inc. On February 14, 2025, the Company completed the IPO of 26.5 million shares of its common stock at a public offering price of $22.00 per share, of which, 8.4 million shares were sold by the Company. The aggregate net proceeds from the offering, after deducting underwriting discounts and commissions, payments to Phantom Unit holders and other offering expenses, were approximately $147.3 million. See Note 9 and Note 10 for details.

Formation and Nature of Business Operations

6 Months Ended

Jun. 30, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Formation and Nature of Business Operations

Karman Holdings Inc. (the “Company”) conducts business as Karman Space and Defense (“Karman”). Karman’s predecessor, TCFIII Spaceco Holdings LLC, was formed in August 2020 and, in connection with the Company’s initial public offering, converted into a Delaware corporation as Karman Holdings Inc. Karman is headquartered in Huntington Beach, California. It currently operates seven subsidiaries in Brea, California, El Monte, California, Huntington Beach, California, Mukilteo, Washington, Wilsonville Oregon, Albany, Oregon, Ogden, Utah and Cedar City, Utah.

Karman specializes in the rapid design, development and production of critical, next-generation system solutions for launch vehicle, satellite, spacecraft, missile defense, hypersonic and Unmanned Aircraft Systems (“UAS”) customers. Karman’s integrated payload protection, propulsion, and interstage system solutions are deployed across a wide variety of existing and emerging programs supporting important Department of Defense (“DoD”) and space sector initiatives.

As of June 30, 2025, Karman’s seven wholly-owned subsidiaries are:

Aerospace Engineering, LLC (“AEC”), a limited liability company, purchased August 28, 2020

AMRO Fabricating Corporation (“AMRO”), a C-corporation, purchased October 28, 2020

American Automated Engineering, Inc. (“AAE”), a C-corporation, purchased December 21, 2020

Systima Technologies, Inc. (“Systima”), a C-corporation, purchased September 14, 2021

Rapid Machine Solutions – Wolcott Design Services, LLC (“RMS”), a limited liability company, purchased February 16, 2024

Metal Technology Inc. (“MTI”), a limited liability company, purchased April 2, 2025

Industrial Solid Propulsion (“ISP”), an S-corporation, purchased May 28, 2025

Initial Public Offering

On February 12, 2025 the Company’s Registration Statement on Form S-1 for its initial public offering (the “IPO”) was declared effective. Prior to the effectiveness of the IPO, the Company was a Delaware limited liability company named TCFIII Spaceco Holdings LLC. On February 12, 2025, the Company converted into a Delaware corporation and changed the name to Karman Holdings Inc. Pursuant to the conversion, all outstanding equity interests and all outstanding P Units were converted into an aggregate of 123.8 million shares of common stock of Karman Holdings Inc.

On February 14, 2025, the Company completed the IPO of 26.5 million shares of its common stock at a public offering price of $22.00 per share, of which, 8.4 million shares were sold by the Company. The aggregate net proceeds from the offering, after deducting underwriting discounts and commissions, payments to Phantom Unit holders and other offering expenses, were approximately $147.3 million. See Note 9 and Note 10 for details.