Calvert Street Capital Partners

What Calvert Street Capital Partners does

Calvert Street Capital Partners is a privately held investment firm founded in 1995 that operates as a multi-fund management company focused on the lower middle market. The firm is structured around two wholly-owned investment subsidiaries: Crescentia Capital, which makes control equity buyout investments in companies providing critical or essential services to industrial and infrastructure end markets, and Parkway Capital, which provides flexible junior capital solutions through mezzanine debt and minority equity investments. Since inception, the two strategies have deployed over $1.1 billion of capital across more than 150 companies, with mezzanine and minority equity investments ranging from $4 million to $15 million per transaction.

The firm generates revenue through two primary streams: ongoing management fees charged to fund investors for asset management services, and performance-based carried interest from successful portfolio company exits. Its go-to-market is direct, relationship-driven sourcing targeting family-owned and operator-led businesses, with institutional capital sourced from a network of co-investors, independent equity sponsors, and family offices. Distinguishing technical or platform infrastructure is not disclosed; the underlying "technology" is characterized as a private equity investment management platform rather than a proprietary product. The firm also operates a fellowship program launched in 2019 to improve access to finance careers for local college students.

Calvert Street is headquartered in Towson, Maryland with a secondary office in Newton Centre, Massachusetts, and operates exclusively in the United States. Leadership includes Managing Partner Brian Guerin at Crescentia Capital, Partners Stephen Randall and Michael Booth, Co-Founder Josh Hall, Co-Founder of Parkway Capital Chris Pope, and dual CFO/COO Carrie Carscallen. The firm is SBIC-licensed through Parkway, giving it access to SBA-backed leverage, and it has been recognized by Financial Services Review as a Top Investment Firm and Top Private Equity Firm in 2024 (a paid participation award).

Name

Calvert Street Capital Partners

Legal name

Calvert Street Capital Partners, Inc.

Website

https://cscp.com

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

11–50 employees

Short description

Calvert Street Capital Partners is a private equity and credit firm founded in 1995 that invests in lower middle-market companies through two subsidiaries: Crescentia Capital (equity buyouts) and Parkway Capital (mezzanine debt). The firm has deployed over $1.1 billion across 150+ family-owned and operator-led businesses in the United States.

Ownership category

akta.pro rank

Product category

Private Equity and Mezzanine Capital

NAICS

Other Financial Investment Activities (5239), Investment Banking and Securities Intermediation (523150), Funds, Trusts, and Other Financial Vehicles (525)

SIC

Security Brokers, Dealers & Flotation Companies (6211), Investors, Nec (6799)

akta.pro primary industry

Sector-Focused Venture Capital (Vertical Specialists) (FSANAAAD)

Keywords

• Private equity firm
• Mezzanine debt investments
• Lower middle market investing
• Equity buyout investments
• Junior capital solutions

Headquarters

HQ city

Lutherville Timonium

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, Infrastructure

Revenue model

1. Management Fees: Ongoing management fees charged to fund investors for asset management services
2. Carried Interest: Performance-based carried interest from successful portfolio company exits, aligning investor and manager interests

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Calvert Street Capital Partners is a private equity and credit firm that invests in lower middle-market companies through two complementary strategies: Crescentia Capital (equity buyout investments in companies providing critical or essential services to industrial and infrastructure end markets) and Parkway Capital (mezzanine debt and minority equity investments). The firm partners with management teams, equity sponsors, family offices, and owner-operators on growth, recapitalizations, and ownership transitions, with typical mezzanine transaction sizes of $4 million to $15 million.

Product overview

Calvert Street Investment Partners operates as a unified private equity and credit platform with two distinct investment strategy brands: Crescentia Capital (equity buyout) and Parkway Capital (mezzanine debt). Together, these complementary strategies provide capital solutions across the entire capital structure for lower middle-market companies, including family-owned and operator-led businesses. The firm has invested over $1.1 billion in 150+ companies since 1995.

Differentiator

Problem solved

Functional benefit

Brands

• Crescentia Capital: The equity buyout business of Calvert Street Investment Partners, focusing primarily on control investments in companies providing critical or essential services to industrial and infrastructure end markets.
• Parkway Capital

Products and services

• Crescentia Capital (Equity Buyout) Crescentia Capital is the equity buyout business of Calvert Street Investment Partners, focusing primarily on control investments in lower middle-market companies providing critical or essential services to industrial and infrastructure end markets. It has invested more than $635 million of capital across 70+ companies since 1995.
• Parkway Capital (Mezzanine Debt) Parkway Capital is the mezzanine debt business of Calvert Street Investment Partners, providing flexible junior capital solutions to lower-middle market companies. It invests $4 million to $15 million per mezzanine transaction and has invested more than $535 million across 75+ companies since 2000.

Named customers5 records

Segments2 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• AdventisminorStrategic or Co-development Partner · 1 January 2019Partnership with Adventis to provide Fellows with Level I Financial Modeling Certificate Program; Adventis has worked with over 7,000 trainees since 2008 to help students develop skills for competitive finance internships.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• MSouth Equity Partners: MSouth is a lower middle market PE firm focused on the Southeastern U.S., comparable to Calvert Street's LMM focus and operating geographies including Mid-Atlantic and Southeast.
• Audax Group: Audax is one of the largest lower middle market PE firms with both equity and debt (mezzanine) strategies, directly comparable to Calvert Street's Crescentia/Parkway two-strategy platform serving similar LMM family-owned companies.
• Graham Partners: Graham Partners is an industrial-focused lower middle market PE firm that invests in industrial and infrastructure-related businesses, directly comparable to Crescentia Capital's industrial/infrastructure end-market focus.
• Monomoy Capital Partners: Monomoy is a lower middle market PE firm focused on industrial and consumer companies, closely comparable to Calvert Street's focus on family/owner-operated businesses in industrial and infrastructure markets.
• Gryphon Investors: Gryphon is a lower middle market PE firm with both equity buyout and mezzanine debt strategies, directly comparable to Calvert Street's two-engine Crescentia/Parkway platform serving LMM companies.
• Kian Capital Partners: Kian Capital is a lower middle market mezzanine debt provider offering subordinated debt and minority equity, directly comparable to Parkway Capital's mezzanine investment strategy for LMM companies.
• CapitalSpring: CapitalSpring is a mezzanine debt provider serving lower middle market companies with $10M-$100M revenue, directly comparable to Parkway Capital's mezzanine investment parameters and target company profile.

Broad incumbents

• Main Street Capital: Main Street Capital is a publicly-traded BDC providing debt and equity to lower middle market companies, a broader incumbent with overlapping investment parameters but publicly-listed structure and larger scale than Calvert Street.
• Pritzker Private Capital: Pritzker Private Capital is a larger lower middle market PE firm with family office backing, an established incumbent serving similar operating-partner-led industrial and business services companies.

Emerging players

• Sound Point Capital: Sound Point Capital has expanded into direct lending and mezzanine strategies serving middle market companies, representing an emerging adjacent player with partial overlap to Parkway's mezzanine focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/calvert-street-capital-partners

Revenue estimate

Valuation estimate

Number of profiles

Profiles17 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

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

M&A

Investments

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

Frequently asked questions about Calvert Street Capital Partners