What Spring Capital Partners does

Spring Capital Partners, L.P. is a Baltimore-based private investment firm founded in 1999 by Michael F. Donoghue and Robert M. Stewart to provide mezzanine (junior capital) financing to growing U.S. small and medium-sized businesses. The firm operates as a Small Business Investment Company (SBIC) licensed by the U.S. Small Business Administration and has raised over $600 million across four successive funds, currently investing out of Spring Capital Partners IV (SCP IV), a $250 million vehicle. The firm typically invests $2 million to $20 million per transaction in the form of subordinated debt with equity features (detachable warrants or direct minority equity), with a five-year fixed-rate, non-amortizing structure, and frequently co-invests alongside private equity sponsors and independent sponsors in buyouts, recapitalizations, management buyouts, acquisitions, and growth financings.

The firm's go-to-market is relationship-driven: deal origination flows through direct outreach to company management teams, a deep network of repeat private equity and independent sponsor relationships (e.g., Merion, Bluejay, Southfield, Parkway, NewSpring, Directional, Hemingway, Birch Swing), and involvement in industry associations such as the National Association of Small Business Investment Companies (NASBIC), NERASBIC, SORASBIC, and the Association for Corporate Growth. The firm targets companies with revenues between $10 million and $150 million that have reached the limits of conventional bank borrowing and need permanent, less-dilutive capital. Since inception, Spring Capital has invested in over 90 portfolio companies across a broad range of industries including food processing, adhesives, third-party logistics, construction products, military services, rent-to-own, electronics repair, digital commerce, and medical apparel.

Spring Capital maintains two offices (Lutherville, MD and Conshohocken, PA) and operates with a small professional team led by the two co-founders plus additional partners and associates. Revenue is generated from subordinated debt interest, equity appreciation through warrants and direct stakes, and, at the fund level, management fees and carried interest on SBIC-licensed fund vehicles. The firm is privately held, with no parent company, and does not develop technology products or offer software services.

Name

Spring Capital Partners

Legal name

Spring Capital Partners, L.P.

Website

https://springcap.com

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

1–10 employees

Short description

Spring Capital Partners is a Baltimore-based SBIC-licensed mezzanine investment firm founded in 1999, providing $2M-$20M of subordinated debt and equity to U.S. small and mid-sized businesses, primarily alongside private equity and independent sponsors in buyouts, recapitalizations, and growth financings.

Ownership category

akta.pro rank

Headquarters

HQ city

Baltimore

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Mezzanine Investment Returns: Spring Capital generates returns through subordinated debt investments that carry fixed interest rates over a five-year term, combined with equity components through detachable warrants or direct minority equity stakes in portfolio companies. Returns are realized through interest income, warrant appreciation, and equity value appreciation upon exit.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Spring Capital Partners provides patient, flexible junior capital (mezzanine financing) to growing small and medium-sized businesses across the United States, typically investing $2 million to $20 million per transaction in subordinated debt with equity features (warrants or direct minority equity). The firm invests alongside private equity sponsors and independent sponsors in change of control, buyout, acquisition, growth, and minority recapitalization transactions, and currently invests out of Spring Capital Partners IV (SCP IV), a $250 million SBIC-licensed fund.

Product overview

Spring Capital Partners is a private equity and mezzanine capital investment firm, not a technology product company. It does not offer a SaaS platform, software products, or technology services. The company's offering consists of providing patient, flexible junior capital solutions (subordinated debt and minority equity investments) to growing small and medium-sized businesses throughout the U.S. Founded in 1999, the firm has raised over $600 million across four funds and invested in over 90 companies. Its current fund is Spring Capital Partners IV, a $250 million SBIC licensed by the SBA. Investment sizes typically range from $2 million to $20 million per transaction.

Differentiator

Problem solved

Functional benefit

Products and services

• Spring Capital Partners IV (SCP IV) - SBIC Mezzanine Fund A $250 million Small Business Investment Company (SBIC) fund licensed by the U.S. Small Business Administration under the Small Business Investment Act of 1958, currently making mezzanine investments in U.S. small and medium-sized businesses. Targets subordinated debt with equity features in transactions of $2M to $20M.
• Mezzanine Capital Investments (Subordinated Debt with Equity Features)

Named customers14 records

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 indicators5 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Hadley Capital: Lower-middle-market investment firm that co-sponsored 4AllPromos alongside Spring Capital. Comparable SMB focus, although slightly more equity-oriented.
• Parkway Capital: Lower-middle-market mezzanine firm that has repeatedly co-invested alongside Spring Capital in deals such as Palmetto Adhesives, Architectural Polymers, and Chibuzo. Directly comparable in size, structure, and target segment.
• Tecum Capital: SBIC-licensed mezzanine investor that co-invested with Spring Capital in Perimeter Insect Guard. Comparable in size, structure, and SBIC-driven strategy.
• Southfield Mezzanine: Mezzanine debt provider that has co-invested with Spring Capital across multiple transactions including Pierce Washington, Scrubs on Wheels, and Best Warehousing & Transportation. Closely comparable strategy and SMB focus.
• NewSpring Mezzanine: SBIC-licensed lower-middle-market mezzanine fund and direct co-investor with Spring Capital (e.g., Purple RTO Holdings). Operates the same junior-capital strategy with similar check sizes and target customer profile.
• Cyprium Partners: Mezzanine debt provider that co-invested with Spring Capital in the Willamette Valley Meat Co. transaction. Targets similar U.S. middle-market companies with subordinated debt and equity features.
• IBC Funds: SBIC-licensed mezzanine fund that co-invested with Spring Capital in the Chibuzo transaction. Operates a comparable junior-capital strategy in the U.S. lower middle market.
• Merion Investment Partners: Recurring co-investor with Spring Capital in Forfend Industries and 4AllPromos. Mid-market mezzanine firm with comparable deal sizes and structures.
• MPowered Capital: Mezzanine debt provider that co-invested alongside Spring Capital in the Palmetto Adhesives transaction. Targets comparable SMB sub-debt opportunities.

Broad incumbents

• Horizon Technology Finance: Publicly traded specialty finance company (NASDAQ: HRZN) that provides structured debt to growth and middle-market companies. Operates at a significantly larger scale than Spring Capital but competes for overlapping deal flow.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/spring-capital-partners-ii-l.p.

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds

Investors

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

M&A

Investments11 records

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

Frequently asked questions about Spring Capital Partners