Platform investment
Vestar Capital Partners acquired Stratus
Date not stated
Source: vestarcapital.comPE Firm · Capital Allocator
Vestar Capital Partners
MediumNot on record · Founded 1988 · Website
Growth-oriented investingPartnership with managementFounder- and family-owned company investmentsAdd-on acquisitionsConsumerHealthcareBusiness & Technology Services
Last verified
11/7/2026
Firm Overview
85
Portfolio tracked
3
Sectors
0
Regions
11/7/2026
Last verified
Vestar Capital Partners is an investment firm that backs management teams and specializes in partnering with founder- and family-owned companies. The firm focuses on growth-oriented investments, using a flexible and creative approach to structure transactions while optimizing operations and balance sheets.
Founded on the belief that a company's success is driven by its management team, the firm functions as a partner to entrepreneurs and strong managers. The integrated team of investment and operating professionals works to build on the foundation created by founders and owners to capitalize on business potential.
The firm employs a flexible investment mandate, allowing for creative structuring and management of investments to achieve shared goals. With over three decades of history, the firm has participated in nearly 100 investments and hundreds of add-on acquisitions to accelerate growth and long-term value creation.
Specializing in the transition to institutional capital, the firm has invested nearly $4 billion into founder- and family-owned businesses. The firm aims to help these companies navigate the opportunities and pitfalls associated with institutional growth.
Founded1988
StrategiesGrowth-oriented investing, Partnership with management, Founder- and family-owned company investments, Add-on acquisitions
Sector focusConsumer, Healthcare, Business & Technology Services
Leadership
Dan O’Connell
Founder and CEO
Norm Alpert
Founding Partner, President, and Head of Investments
Rob Rosner
Founding Partner and Chairman of the Investment Committee
Jim Kelley
Founding Partner & Managing Director
Chris Durbin
Managing Director
Roger Holstein
Managing Director
Kevin Mundt
Managing Director
Ken O’Keefe
Managing Director, COO, Investor Relations Head
Michelle Bergman
General Counsel, Chief Compliance Officer
Diya Talwar
Managing Director
Jake Olson
Managing Director
Brendan Spillane
Managing Director, CFO
Arthur Nagle
Founding Partner & Senior Advisor
Jeffrey Ansell
Strategic Executive Advisor
Wayne Callahan
Senior Advisor
Jim Elrod
Senior Advisor
Stephen Gold
Senior Advisor
Jennifer Mintman
Senior Advisor
Brian Schwartz
Senior Advisor
Adam Lee
Principal
Portfolio by sector
- Healthcare3 (60%)
- Energy1 (20%)
- Financial Services1 (20%)
5 of 85 tracked portfolio companies of Vestar Capital Partners carry a sector label we can map; shares are of those 5. See the methodology.
Deals on record
1 on record in the indexDeals are listed only where a public source names both sides. Submit a correction.
Portfolio on record
Portfolio by sector
- Unclassified80 of 85
- Healthcare3 of 85
- Energy1 of 85
- Financial Services1 of 85
85 portfolio companies on record in the index, grouped by sector hub.
Current and exited
Current: 11 of 85Exited: 74 of 85
Portfolio size among all firms
85 companies on record, more than 83% of the 405 firms in the index.
0885 companies (log scale)
Portfolio Companies
| Company | Sector | Status | Website |
|---|---|---|---|
| 21St Century Oncology | Not on record | Exited | Not on record |
| 360training | Not on record | Current | Not on record |
| Advanced Organics | Not on record | Exited | Not on record |
| Aearo | Not on record | Exited | Not on record |
| Anvil | Not on record | Exited | Not on record |
| Argo-Tech | Not on record | Exited | Not on record |
| AZ Electronic Materials | Not on record | Exited | Not on record |
| Birds Eye | Not on record | Exited | Not on record |
| Border Media | Not on record | Exited | Not on record |
| Boulder Investment Group Reprise | Not on record | Current | Not on record |
| Celestial Seasonings | Not on record | Exited | Not on record |
| Cesare Fiorucci | Not on record | Exited | Not on record |
| Circana | Not on record | Current | Not on record |
| Civitas Solutions | Not on record | Exited | Not on record |
| Clark-Schwebel | Not on record | Exited | Not on record |
| Consolidated Cigar Company | Not on record | Exited | Not on record |
| Consolidated Container Company | Not on record | Exited | Not on record |
| Delmonte and Big Heart pet brands | Not on record | Exited | Not on record |
| Devilbiss healthcare | Not on record | Exited | Not on record |
| Don Edwards | Not on record | Exited | Not on record |
| Dr. Praeger's purely sensible foods | Not on record | Current | Not on record |
| Duff & Phelps | Not on record | Exited | Not on record |
| Essent | Not on record | Exited | Not on record |
| Friday Health Plans | Not on record | Exited | Not on record |
| Gleason | Not on record | Exited | Not on record |
| Goldtoe | Not on record | Exited | Not on record |
| Hampshire Chemical | Not on record | Exited | Not on record |
| healthgrades | Not on record | Exited | Not on record |
| Hearthside food solutions | Not on record | Exited | Not on record |
| Insight | Not on record | Exited | Not on record |
| International Air Parts | Not on record | Exited | Not on record |
| Internet Venture Works | Not on record | Exited | Not on record |
| ISS | Not on record | Exited | Not on record |
| Joerns Healthcare | Not on record | Exited | Not on record |
| La Petite Academy | Not on record | Exited | Not on record |
| Lereta | Not on record | Current | Not on record |
| MAG Aero-Space | Not on record | Exited | Not on record |
| MCG capital | Not on record | Exited | Not on record |
| Mercury Healthcare | Not on record | Exited | Not on record |
| Michael Foods | Not on record | Exited | Not on record |
| Mobile Technologies | Not on record | Exited | Not on record |
| Montpelier RE | Not on record | Exited | Not on record |
| Nonni's | Not on record | Exited | Not on record |
| Nox Health | Not on record | Current | Not on record |
| Nybron Flooring International | Not on record | Exited | Not on record |
| OGF | Not on record | Exited | Not on record |
| Paris RE | Not on record | Exited | Not on record |
| Perfect Fit Industries | Not on record | Exited | Not on record |
| PetHonesty | Not on record | Current | Not on record |
| Pinnacle Automation, INC. | Not on record | Exited | Not on record |
| Polo Jeans Company | Not on record | Exited | Not on record |
| Presence Marketing | Not on record | Exited | Not on record |
| Press Ganey | Not on record | Exited | Not on record |
| Prestone | Not on record | Exited | Not on record |
| Pyramid Communications, INC. | Not on record | Exited | Not on record |
| Quest Analytics | Not on record | Exited | Not on record |
| Red Prarie | Not on record | Exited | Not on record |
| Remington | Not on record | Exited | Not on record |
| Roland | Not on record | Current | Not on record |
| Russell Stanley | Not on record | Exited | Not on record |
| SAB Wabco | Not on record | Exited | Not on record |
| Selènia | Not on record | Exited | Not on record |
| Seves | Not on record | Exited | Not on record |
| Sheridan performance-driven physician services | Not on record | Exited | Not on record |
| Siegel + Gale | Not on record | Exited | Not on record |
| Simple Mills | Not on record | Exited | Not on record |
| Solo | Not on record | Exited | Not on record |
| St. John | Not on record | Exited | Not on record |
| Staywell | Not on record | Exited | Not on record |
| Stratus | Not on record | Current | Not on record |
| Sun Products Corporation | Not on record | Exited | Not on record |
| Sunrise Medical | Not on record | Exited | Not on record |
| Super D Drugs | Not on record | Exited | Not on record |
| Symetra Retirement Benefits | Not on record | Exited | Not on record |
| Tervita | Not on record | Exited | Not on record |
| the-emily-program | Not on record | Current | Not on record |
| Titan Frozen Fruit | Not on record | Current | Not on record |
| tobii dynavox | Not on record | Exited | Not on record |
| Triton | Not on record | Exited | Not on record |
| Validus RE | Not on record | Exited | Not on record |
| Wabtec Corportation | Not on record | Exited | Not on record |
| Wilton Re | Not on record | Exited | Not on record |
| Winstream | Not on record | Exited | Not on record |
| Woodstream | Not on record | Exited | Not on record |
| ZML Industries | Not on record | Exited | Not on record |
Firms that also back Vestar Capital Partners' companies
Co-investor web
Line width shows shared portfolio companies on record in the index. Top 8 co-investors shown.
New Mountain Capital3 shared companies
Kelso & Company2 shared companies
Brightstar Capital Partners1 shared company
Freeman Spogli & Co.1 shared company
Harvest Partners1 shared company
Hellman & Friedman1 shared company
Leonard Green & Partners1 shared company
Lovell Minnick Partners1 shared company
Questions about Vestar Capital Partners
- When was Vestar Capital Partners founded?
- Public sources give 1988 as the year Vestar Capital Partners was founded.
- Which sectors does Vestar Capital Partners invest in?
- Vestar Capital Partners lists Consumer, Healthcare and Business & Technology Services among its focus areas. Of the 85 portfolio companies we can classify, the largest groups are Healthcare (3), Energy (1) and Financial Services (1).
- How many portfolio companies does Vestar Capital Partners have?
- PE Firm Index tracks 85 Vestar Capital Partners portfolio companies from the firm's public portfolio page, as of 2026-11-07. The firm's own count may differ, for example where exited companies are listed.
- What deals has Vestar Capital Partners done recently?
- The most recent deal on record here is: Vestar Capital Partners acquired Stratus. This page lists 1 deal, each with its public source.
- Who leads Vestar Capital Partners?
- Public sources name Dan O’Connell (Founder and CEO), Norm Alpert (Founding Partner, President, and Head of Investments) and Rob Rosner (Founding Partner and Chairman of the Investment Committee) among Vestar Capital Partners' leadership.
- Which firms are similar to Vestar Capital Partners?
- By overlap in portfolio sectors in this index: Frazier Healthcare Partners, Vivo Capital and Wavemaker 360 Health.
Sources for this profile, updated 2026-11-07
- Firm website
- Deal reports (1), linked beside each deal
This profile is based on publicly available information and may be incomplete or outdated. PE Firm Index is not affiliated with Vestar Capital Partners and does not provide investment advice.
Firms similar to Vestar Capital Partners
Frazier Healthcare Partners
Both hold Healthcare and Financial Services companies; 40 tracked portfolio companies.
Vivo Capital
Both hold Healthcare companies; 98 tracked portfolio companies.
Wavemaker 360 Health
Both hold Healthcare companies; 62 tracked portfolio companies.
Avista Capital Partners
Both hold Healthcare companies; 53 tracked portfolio companies.
Chosen from this index by overlap in portfolio sectors, then by portfolio size. Not a ranking or a recommendation.