Cornerstone Capital Partners

What Cornerstone Capital Partners does

Cornerstone Capital Partners, Inc. is a private investment firm founded in 1990 and headquartered in New York that acquires or recapitalizes lower-middle-market companies. The firm targets industrial manufacturers, industrial distributors, and business services companies with revenues between $10 million and $150 million and EBITDA greater than $3 million. Its stated verticals include building products, transportation, industrial distribution, and furniture manufacturing across the United States and Canada.

Cornerstone structures transactions as partnerships with incumbent management teams, emphasizing management continuity, long-term equity incentives, and board-level engagement. The firm's Principals (Founding Partner Jerry R. Donatelli and Managing Partner Stephen S. Altman, joined 2006) and Operating Advisors (Darryl Rosser, James P. Brennan) have over 75 years of combined private equity and operating experience, including prior senior roles at Exxon International, Masco Corporation, Long Point Capital, Arthur Andersen, and various public and PE-owned companies. Since 1990, Donatelli has directed investment in 17 portfolio companies with approximately $750 million in cumulative enterprise value; Altman has directed seven deals totaling $300 million in enterprise value since 2006.

The firm monetizes via traditional private equity economics: capital appreciation on portfolio exits and, implicitly, management fees on committed capital. Its current active portfolio comprises Global IFS (access flooring, modular wiring, air delivery), RidgeRock Retaining Walls (segmental block distribution), Riviera Bronze (custom steel doors/windows), and Zander Solutions (waterproofing and concrete restoration). Eleven realized transactions span iron castings (Aarrowcast), precast concrete (Eastern Vault/Evercast, Evercast), windows and doors (ATIS Group, Farley Windows), specialty plywood (Atlantic Plywood), mobile display vehicles (Craftsmen Industries), aluminum concrete forms (Durand Forms), industrial snow-removal equipment (RAD Technologies), pre-assembled building components (Shelter Systems), upholstered furniture (Stanton International), and barge transportation (Tidewater Barge Lines). Deal sourcing is relationship-driven through investment banking networks and co-investment partnerships with Context TCM, RFE Investment Partners, PNC Mezzanine, J.H. Whitney Capital Partners, and Haworth (minority co-investor in Global IFS).

Name

Cornerstone Capital Partners

Legal name

Cornerstone Capital Partners, Inc.

Website

https://cornerstonecappartners.com

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

1–10 employees

Ownership category

akta.pro rank

Product category

Private Equity / Middle-Market Industrial Investing

NAICS

Other Financial Investment Activities (5239)

akta.pro primary industry

Large-Cap / Mega-Fund Buyout (FSANABAA)

Keywords

• Private equity investment
• Middle-market acquisitions
• Industrial manufacturing investing
• Business services investing
• Management buyout partnerships

Headquarters

HQ city

New York

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others

Marketing channels1 record

Core offering

Cornerstone Capital Partners is a private investment firm that acquires or recapitalizes middle-market companies in manufacturing, industrial distribution, and business services. The firm forms partnerships with existing management teams, takes active board-level roles post-investment, and targets companies with revenues of $10M-$150M and EBITDA greater than $3M. Across 17 portfolio companies the firm has directed almost $750 million in total enterprise value.

Product overview

Cornerstone Capital Partners is a private equity investment firm, not a product company. It does not offer a unified product platform or SaaS offering. The company acquires middle-market companies in manufacturing, industrial services, distribution, and business services sectors. Its portfolio consists of portfolio companies across various industries including access flooring (Global IFS), retaining wall products (RidgeRock Retaining Walls), custom steel doors/windows (Riviera Bronze), waterproofing solutions (Zander Solutions), and various realized investments in precast concrete, iron castings, windows, doors, furniture, and barge transportation.

Differentiator

Problem solved

Functional benefit

Products and services

• Private equity acquisition and recapitalization partnerships

Segments3 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• Haworth (minority ownership)minorStrategic or Co-development Partner · 1 January 2018Haworth maintains a minority ownership position in Global IFS and, through its dealers, collaborates on future projects. Global IFS was formed to be the North American leader in raised flooring systems.

Scale indicators4 records

Recent moves5 records

Expansion highlights3 records

Direct peers

• Wynnchurch Capital: Middle-market private equity firm focused on industrial, manufacturing, and distribution investments. Highly comparable to Cornerstone given similar middle-market industrial mandate and operational value-add approach.
• Pritzker Private Capital: Middle-market investment firm focused on industrial, manufacturing, and service businesses. Comparable to Cornerstone in lower-middle-market industrial focus and partnership-oriented approach with management teams.
• Heartland Industrial Partners: Private equity firm specializing in industrial manufacturing and distribution investments. Directly comparable to Cornerstone's middle-market industrial investment thesis.
• Platte River Equity: Middle-market private equity firm targeting industrial manufacturing and value-added distribution businesses. Comparable deal size, vertical focus, and operating partnership model.
• Industrial Opportunity Partners: Lower middle-market private equity firm focused on industrial manufacturing and distribution. Comparable target company profile, deal size, and operational improvement orientation.
• Gen Cap America: Lower middle-market private equity firm investing in manufacturing, distribution, and business services. Closely comparable to Cornerstone in target company size, sector focus, and partnership model.
• Goldner Hawn Johnson & Morrison: Middle-market private equity firm investing in industrial, manufacturing, and business services companies. Comparable target size, sector mix, and value-add approach.
• Bayshore Capital: Lower middle-market private equity firm focused on manufacturing, industrial products, and business services. Comparable in deal size, vertical focus, and operating partnership model.

Broad incumbents

• J.H. Whitney Capital Partners: Established middle-market private equity firm with broader industrial and consumer reach. Cornerstone has co-invested with J.H. Whitney on Aarrowcast, demonstrating direct overlap in target verticals and deal-making approach.
• Long Point Capital: Lower middle-market private equity firm. Directly relevant as the prior firm of Cornerstone's Managing Partner Stephen Altman, reflecting a closely aligned investment approach and overlapping portfolio company profile.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/cornerstone-capital-partners-inc.

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 Cornerstone Capital Partners