# PennSpring Capital

PennSpring Capital is a Private Equity based in Lancaster, United States.

## Overview

- **Organization type:** Private Equity
- **Headquarters:** Lancaster, United States
- **Region:** North America
- **Address:** 206B West James Street, Lancaster, PA 17603, United States
- **Founded:** 2018
- **Assets under management:** Undisclosed
- **Website:** www.pennspring.com
- **LinkedIn:** https://www.linkedin.com/company/pennspring-capital

## Regulatory record

- **Reports private funds:** No

## About

Lancaster-based private equity firm specializing in lower middle market companies ($750K-$5M EBITDA). People-forward approach. Top 50 PE Firm.

## Sectors

- Enterprise Software
- Industrial Tech
- Healthcare Services

## People

- Lou Castelli — Managing Partner

## Questions

### Who runs investment decisions at PennSpring Capital?

Managing Partner Lou Castelli leads investment decisions. Because the firm is self-capitalized from the founders' exits and has no external limited partners, the decision-making authority sits with the internal partnership rather than an outside investment committee. The firm's website positions Castelli as the primary architect of PennSpring's strategy since its 2018 founding.

### Does PennSpring raise outside funds, or is it permanently capitalized?

PennSpring is self-capitalized, meaning it deploys capital generated from the founders' own prior business exits. It does not disclose raising traditional blind-pool funds from external limited partners. This permanent-capital structure removes standard private equity fundraising cycles and allows indefinite hold periods on portfolio companies.

### What size companies does PennSpring target?

The firm targets lower middle market companies generating between $750,000 and $5 million in EBITDA. Its stated sweet spot is founder-led businesses at a transition point where professionalized resources and growth capital can materially increase equity value. The firm pursues majority investments rather than minority stakes.

### Where does PennSpring's capital originate?

The firm discloses that its capital comes from the successful exits of its own founders' prior ventures. It has not publicly identified the specific businesses that generated that wealth. This self-capitalization means it reports no obligations to outside limited partners, family office sponsors, or pension fund backers.

### Does PennSpring co-invest with other firms?

The firm's website and available public materials do not address co-investment posture. Given its self-capitalized model and lower middle market focus, it is unknown whether PennSpring syndicates deals with other private equity firms, family offices, or lenders, or whether it exclusively writes equity checks from its own balance sheet.

## Related profiles

- [Pennon Group Pension Scheme](https://altss.com/profile/pennon-group-pension-scheme)
- [Garber Venture Capital Fund](https://altss.com/profile/penn-state-smeal-college-of-business-garber-venture-capital-fund)

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Last updated: 2026-06-03T20:00:00.000Z

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