Investment Summary

Windjammer Capital Exits Paragon

On September 24, 2025, Mirion invested in energy services and equipment company Paragon from Windjammer Capital for 585M USD

Investment Highlights
  • This is Mirion’s 1st transaction in the Energy Services and Equipment sector.
  • This is Mirion’s largest (disclosed) transaction.
  • This is Mirion’s 11th transaction in the United States.
  • This is Mirion’s 3rd transaction in Texas.

Investment Summary

Date 2025-09-24
Target Paragon
Sector Energy Services and Equipment
Investor(s) Mirion
Sellers(s) Windjammer Capital
Deal Type Add-on Acquisition
Deal Value 585M USD
Advisor(s) Baird
Moelis & Co. (Financial)
Kirkland & Ellis (Legal)

Target

Paragon

Fort Worth, Texas, United States
Paragon is a critical parts and services provider to the nuclear power industry, helping to advance zero carbon energy. The Company serves both large nuclear utility power plants and next generation advanced Small Modular Reactors (SMRs). Paragon was formed in 2000 and is based in Fort Worth, Texas.

Search 214,107 Deals Now

SEARCH BY

  • Buyer Type (PE or Strategic)
  • Deal Size ($10M to $10B+)
  • Sector (60 Sectors)
  • Deal Type
  • Geography
  • & More

Try Free

Investor(S) 1

Investor

Mirion

Atlanta, Georgia, United States

Category Company
Founded 2005
Sector Test/Measurement Equipment
Employees2,860
Revenue 861M USD (2024)
DESCRIPTION

Mirion is a provider of radiation detection, measurement, analysis, and monitoring products and services to the nuclear power, medical, military, and homeland security markets. Mirion Technologies was founded in 2005 and is based in Atlanta, Georgia.


DEAL STATS #
Overall 15 of 15
Sector: Energy Services and Equipment M&A 1 of 1
Type: Add-on Acquisition M&A Deals 9 of 9
State: Texas M&A 3 of 3
Country: United States M&A 11 of 11
Year: 2025 M&A 2 of 2
Size (of disclosed) 1 of 3
PREVIOUS DEAL
DATE TARGET DEAL TYPE VALUE
2025-07-31 Certrec

Fort Worth, Texas, United States

Certrec is an energy regulatory compliance SaaS and services provider with more than 1,500 cumulative years of engineering and audit experience with the Nuclear Regulatory Commission (NRC), the Federal Energy Regulatory Commission (FERC), the North American Electric Reliability Corporation (NERC), and other regulatory compliance agencies. Certrec was formed in 1988 and is headquartered in Fort Worth, Texas.

Buy $81M

Seller(S) 1

SELLER

Windjammer Capital

Newport Beach, California, United States

Investor Investor Investor Investor Investor


Category Mezzanine Finance Firm
Founded 1990
PE ASSETS 2.0B USD
Size Large
Type Sector Agnostic
DESCRIPTION

Windjammer Capital is a private investment firm that invests control equity, minority equity, and/or subordinated debt in growing middle-market businesses. The Firm seeks to invest between $50 and $200 million of equity or subordinated debt in companies that generate at least $8 million of EBITDA. Windjammer focuses on North American-based opportunities and prefers companies with scalable business models, differentiated products/services, and that operate in defensible markets. Broad sectors of interest include manufacturing, business services and value-added distribution. Windjammer does not invest in high technology, real estate, and financial services companies. Windjammer Capital was formed in 1990 and has offices in Waltham, Massachusetts and Newport Beach, California.


DEAL STATS #
Overall 27 of 27
Sector: Energy Services and Equipment M&A 1 of 1
Type: Add-on Acquisition M&A Deals 11 of 11
State: Texas M&A 1 of 1
Country: United States M&A 27 of 27
Year: 2025 M&A 1 of 1
Size (of disclosed) 3 of 10
PREVIOUS DEAL
DATE TARGET DEAL TYPE VALUE
2025-09-09 PDU Cables

Minnetonka, Minnesota, United States

PDU Cables is a manufacturer of branch circuit power distribution cable assemblies throughout North America. PDU Cables was formed in 1981 and is based in Minnetonka, Minnesota.

Buy -