What Blue Marlin Partners does

Blue Marlin Partners is a private equity firm headquartered in Bethesda, Maryland (legal entity Blue Marlin Services, LLC, registered in Delaware at 919 N Market Street, Suite 725, Wilmington), that invests in established, profitable lower middle market businesses with attractive entry valuations, clear growth potential, and identifiable exit opportunities. The firm was established by Peter Kirsch, who previously ran the family office of America Online's founder for ten years, alongside a select group of Capital Partners comprising high-net-worth operators, family offices, and individual investors. Rather than operating a traditional commingled fund with full management fees and limited partner controls, Blue Marlin offers a flexible partnership model that allows investors to co-invest deal-by-deal with autonomy over industries, structures, and timelines.

The firm operates two product lines. Its core offering is private equity investment services targeting lower middle market companies in industries where the Capital Partners, management, and advisors have significant expertise. A second, separately-marketed offering is the AI Investment Platform, which focuses on sourcing, evaluating, and managing AI-focused investment opportunities and is led by Managing Director Karenann Terrell with Joel Leonoff (former fintech operator) as Advisory Board Chair. Blue Marlin generates revenue through conventional private equity economics, primarily management fees and carried interest on successful investments, and manages its Capital Partner relationships through dedicated investor portals hosted on Carta and InvestorBridge. The firm is staffed by 11-50 employees including Managing Directors, a Principal, Associates, a CFO (Becca Shane, formerly of Carlyle Group), and a network of Senior Advisors drawn from Lazard, Perkins Investment Management, Edgewater Funds, Blackstreet Capital, William Blair, BMO, and other institutions.

Name

Blue Marlin Partners

Legal name

Blue Marlin Services, LLC

Website

https://bluemarpartners.com

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

11–50 employees

Short description

Blue Marlin Partners is a Bethesda-based private equity firm that invests in profitable lower middle market businesses through a flexible partnership model for high-net-worth operators and family offices, and operates a separate AI Investment Platform.

Ownership category

akta.pro rank

Product category

Private Equity Investment Management

NAICS

Portfolio Management and Investment Advice (523940), All Other Financial Investment Activities (52399)

SIC

Investment Advice (6282)

akta.pro primary industry

Multi-Sector / Generalist Growth Equity (FSANACAO)

Keywords

• Private equity investments
• Lower middle market
• Growth capital partnership
• Alternative investment management
• Family office capital

Headquarters

HQ city

Bethesda

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Others

Revenue model

1. Private Equity Management: Blue Marlin Partners operates as a private equity firm offering a flexible partnership model to high-net-worth investors. The firm provides capital deployment and strategic partnership to portfolio companies. Revenue is generated through traditional private equity economics including management fees and carried interest from successful investments.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Blue Marlin Partners is a private equity firm that invests in established, profitable lower middle market businesses with attractive entry valuations, clear growth potential, and exit opportunities across various industries. It operates a flexible partnership model alongside a curated network of Capital Partners—high-net-worth operators, family offices, and institutional investors—providing capital, board participation, and strategic guidance. It also operates an AI Investment Platform focused on AI-focused investment opportunities.

Product overview

Blue Marlin Partners is a private equity firm offering a flexible partnership model for high-net-worth investors. The firm operates two main offerings: its core Private Equity Investment Services focused on established lower middle market businesses, and an AI Investment Platform for AI-focused investment opportunities. The firm leverages trusted networks of Capital Partners to source deals, prioritize investments where the investor group has significant expertise, and provide hands-on leadership through board participation and strategic guidance.

Differentiator

Problem solved

Functional benefit

Products and services

• Private Equity Investment Services Investment services focused on established, profitable lower middle market businesses with attractive entry valuations, clear growth potential, and exit opportunities across various industries. Capital is paired with board participation, strategic guidance, and networking via the Capital Partners network.
• AI Investment Platform A specialized investment platform leveraging AI capabilities for sourcing, evaluating, and managing AI-focused investment opportunities, led by Managing Director Karenann Terrell and Associate Alan Cowan.

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Edgewater Funds: Lower-middle-market private equity firm where Senior Advisor Jeff Frient spent nearly 25 years. Direct overlap with Blue Marlin's profitable-LMM, network-driven thesis.
• Blackstreet Capital: Lower middle market distressed buyout firm where Managing Director Chris Swarbrick previously led investments from diligence through post-merger integration. Closely comparable sponsor archetype.
• Liberty Hall Capital Partners: Lower middle market private equity firm where Principal Duncan Bowden was an Investment Associate. Comparable in scale, sector breadth, and relationship-driven sourcing.
• Longstreet Partners: Private equity and investment banking firm focused on small to mid-sized enterprises, founded by Senior Advisor Dan Moore. Same profitable-SME investment thesis and flexible partnership orientation.
• Orkila Capital: Growth equity firm where Associate Derek Zajac executed platform and add-on acquisitions in Consumer, Entertainment, and TMT. Direct comparability on multi-sector lower-middle-market growth investing.
• Enfield Capital Partners: Co-lead investor alongside Blue Marlin in Ethermed's $8.5M Series A. Comparable sponsor profile investing across stages and sectors, including healthcare and applied AI.
• Sigma2: Advisor Ron Mayers' cohort of wealth creators with a hands-on collaborative allocation approach. Closely analogous flexible, family-office-style partnership model.

Broad incumbents

• The Carlyle Group: Global private equity incumbent where CFO Becca Shane was a Fund Accounting Manager. Not a direct competitor in the LMM but provides the institutional benchmark Blue Marlin is differentiated against.
• Lazard: Global advisory and asset management firm where Managing Director Peter Thompson was Chairman of Lazard Frères Midwest Advisory. Provides incumbent context for advisory-driven sponsor competition.
• Truist Wealth: Large wealth platform where Brian McGettigan led go-to-market for Delaware, Maryland, and West Virginia. Comparable in targeting the same high-net-worth and family-office LP base, though delivered through a bank balance sheet.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/blue-marlin-partners-llc

Revenue estimate

Valuation estimate

Number of profiles

Profiles23 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments7 records

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Blue Marlin Partners