Experienced investors
building enduring value

Reefline Capital partners with founders and leadership teams of Critical Services, Industrial Technology and Aerospace & Defense companies, leveraging decades of experience growing and transforming businesses. We treat each partnership as special and built to last.

What we seek

~

25

Years investing together

14

Platform investments

50

+

Total transactions

4,000

+

Employee partners

Highly selective, highly supportive

Reefline Capital invests in middle market businesses where our team has deep sector experience and sees strong potential for long-term growth. We work alongside founders and leadership teams to build enduring, category-defining businesses. 

What sets us apart

How we partner

Culture-first orientation

Deep sector relationships

Extensive operating support

Conviction and reliability

Experienced team, deep relationships

20+

Team of Investment Professionals, Operating Executives and Executive Advisors growing businesses together.
“We truly enjoy partnering with the team at Reefline Capital. They are knowledgeable, thoughtful, straightforward and impactful. Quite simply, they are people we enjoy working with.”
Mike Griffin
Co-Founder of LogiQ; former NASA Adminstrator
“Together with the team at Reefline Capital, we built Sunvair Aerospace Group from a second generation family-owned business into an industry leading platform. Joining them on this journey is the best professional decision I have ever made.”
Kerry Jarandson
CEO of Sunvair Aerospace Group
“Having sat in board rooms at large and small businesses, I’m impressed by the Reefline Capital team’s industry knowledge and practicality. They are truly sector specialists, and it has been fun to be a part of the company building process with them.”
Steve Woerner
Board Member of Flagger Force
“Private equity firms aren't created equal. Only a handful are truly special, and Reefline Capital is one of them. Together with their principals, we built a stronger company that keeps expanding into new markets, outperforming its competition and creating opportunities for its employees.”
GR Schrotenboer
Former CEO of NSI Industries
“We've grown our company through a steady run of acquisitions, and the Reefline Capital team made that pace possible. Beyond capital, they brought the discipline and conviction to keep building a national platform the right way, without losing what made us who we are.”
Dan Brooks
Co-Founder and CEO of Rhino Tool House

Latest news

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August 12, 2025 · Press Release

Blue Sea Capital acquires MicroCare

March 9, 2026 · Press Release

Rhino Tool House acquires Ergonomic Solutions and Teknikor

March 9, 2026 · Press Release

Building conviction through thematic investing and operating partnership

September 10, 2026

Industry veterans form Reefline Capital, a sector-focused private equity firm investing in growth industrials and aerospace & defense businesses

June 2, 2026

Flagger Force accelerates Midwest expansion with acquisition of MidAmerica Safety Solutions

March 9, 2026

Rhino Tool House acquires Ergonomic Solutions and Teknikor

August 12, 2025

Blue Sea Capital partners with MicroCare

December 16, 2024

Rhino Tool House acquires UWBA Design

October 21, 2024

Flagger Force enters Kentucky with acquisition of NTC Traffic Control

September 9, 2024

Flagger Force acquires Florida TTC

July 18, 2024

Ernst & Young LLP (EY US) announces Flagger Force’s Mike Doner as an Entrepreneur of the Year® 2024 Greater Philadelphia Award winner

June 5, 2024

Blue Sea Capital announces sale of Sunvair Aerospace Group

May 29, 2024

Plasma Processes acquires Metaltech Machine & Tool

April 1, 2024

ProSource acquires Southern Distributing 

March 27, 2024

Rhino Tool House acquires MP Industrial

January 24, 2024

Rhino Tool House acquires Power Tools & Supply

October 18, 2023

Rhino Tool House acquires BoMar Pneumatics

October 2, 2023

Rhino Tool House acquires TMI Supply Company

September 18, 2023

Blue Sea Capital closes $618 million Fund III, exceeding target

April 5, 2023

Blue Sea Capital partners with Rhino Tool House

April 5, 2023

ProSource acquires Huber Supply

February 13, 2023

Blue Sea Capital partners with Flagger Force®

September 26, 2022

Blue Sea Capital partners with ProSource

January 5, 2022

Plasma Processes partners with Blue Sea Capital

December 16, 2021

Blue Sea Capital announces sale of RESA Power

November 23, 2021

RESA Power acquires Priority 1 Power Services

May 10, 2021

Blue Sea Capital partners with Abrasive Technology

February 11, 2021

Innovative FlexPak is now Innovative Labs

February 1, 2021

Blue Sea Capital closes $430 million Fund II, exceeding $350 million target

January 14, 2021

RESA Power acquires Western Utilities Transformer Services

January 8, 2021

Sunvair Aerospace Group acquires Mingo Aerospace

February 28, 2020

Blue Sea Capital announces sale of NSI Industries

January 23, 2020

Blue Sea Capital partners with Innovative FlexPak

November 14, 2019

NSI Industries completes third add-on acquisition of 2019

August 20, 2019

NSI Industries acquires Bridgeport Fittings

May 15, 2019

Blue Sea Capital welcomes Paul Schneir

March 11, 2019

NSI Industries acquires Platinum Tools

December 7, 2017

RESA Power acquires HMT

November 9, 2017

Blue Sea Capital partners with RESA Power

May 17, 2016

Blue Sea Capital partners with NSI Industries

December 15, 2015

Blue Sea Capital welcomes J. Thomas Bowler, Jr.

July 31, 2015

Sunvair Aerospace Group acquires AAIC

June 22, 2014

Blue Sea Capital forms Sunvair Aerospace Group

June 4, 2014

Blue Sea Capital Closes First Fund with $327 Million

September 10, 2026

Industry veterans form Reefline Capital, a sector-focused private equity firm investing in growth industrials and aerospace & defense businesses

2026

June 2, 2026

Flagger Force accelerates Midwest expansion with acquisition of MidAmerica Safety Solutions

2026

March 9, 2026

Rhino Tool House acquires Ergonomic Solutions and Teknikor

2026