Asset Manager

Updated:

Sun Auto Tire & Service

Tony Gioia's Sun Auto Tire & Service runs hundreds of auto-service locations in the US, backed by Leonard Green & Partners.

Sun Auto Tire & Service

Sun Auto Tire & Service operates as a consolidator in the automotive aftermarket, acquiring independent tire and general-repair shops and integrating them under a centralized operational model. The firm was backed in its latest chapter by Leonard Green & Partners, which acquired a majority stake in 2022 (per PE Hub, 2022). Tony Gioia, the architect of the roll-up, previously built Suncor into a distribution platform before pivoting to the service-shop strategy. The company targets high-margin, non-dealership repair services — brakes, alignments, diagnostics, and routine maintenance — alongside tire replacement. The investment mandate is single-sector and operationally intensive. Sun Auto buys mature, cash-flowing shops in Sun Belt and Midwest markets, then installs standardized pricing, procurement, and digital marketing systems across the portfolio. The company has completed dozens of add-on acquisitions, growing from a regional operator into a multi-state presence. In 2023, the firm acquired multiple independent tire chains in Texas to extend its Midas and Grease Monkey franchise footprint (per Tire Business, 2023). The strategy relies on the fragmentation of the auto-repair industry — over 70% of US shops remain independently owned — and the increasing complexity of modern vehicles that pushes repair demand toward full-service chains. In partnership with Leonard Green, Sun Auto scaled through a combination of organic same-store sales growth and aggressive M&A. The company maintains dual headquarters in Tucson, Arizona, and Mesa, Arizona, with operational hubs across the states where it owns shops. In 2023, Sun Auto promoted Chris Guilfoyle to President to lead field operations and supply-chain integration (per Tire Business, 2023). The firm reports servicing over one million vehicles annually and carries standard private-equity leverage alongside its equity recapitalizations, though specific financials remain private (per the firm). Sun Auto represents a private-equity-backed operating company rather than a traditional family office or fund — its structure is that of a corporate acquirer managing a portfolio of branded storefronts. The structural differentiator lies in its exclusive, permanent-capital focus on automotive services, a niche where scale yields purchasing power on tires, parts, and advertising that independent shops cannot match. The governance sits with the Leonard Green partnership and the Gioia-led management team, making Sun Auto a standalone entity inside a fund, not an open-ended holding company.

General information

Firm type

Asset Manager

Year founded

AUM

Undisclosed

Location

Region

North America

Country

United States

City

Tucson

Corporate office

Tucson, AZ, United States

Principals

Tony Gioia

Chairman & CEO

Sector focus

Automotive Services

Frequently asked questions

Who runs Sun Auto Tire & Service?

Tony Gioia serves as Chairman and CEO. He previously built and sold Suncor, a distribution business, before moving into automotive-service consolidation. Leonard Green & Partners, the Los Angeles-based private-equity firm, acquired a majority stake in Sun Auto in 2022 (per PE Hub, 2022). Chris Guilfoyle was promoted to President in 2023 to oversee field operations (per Tire Business, 2023).

What is Leonard Green & Partners' role in Sun Auto?

Leonard Green & Partners is the majority owner and primary institutional backer. The firm acquired its controlling stake in 2022 from Greenbriar Equity Group, which had originally invested in Sun Auto's platform build-out. Leonard Green typically holds portfolio companies for five to eight years before pursuing a sale or public listing.

How does Sun Auto acquire shops, and what is the integration strategy?

Sun Auto targets established, profitable independent repair shops and small regional chains in the Sun Belt and Midwest. Acquired shops retain their original branding while adopting centralized procurement, pricing models, and digital customer-acquisition systems. The platform benefits from bulk purchasing power on tires and parts and consolidated back-office functions.

Is Sun Auto Tire & Service a franchise operator?

Sun Auto operates a mix of corporate-owned locations and franchise outlets under brands including Midas, Grease Monkey, and Tire Choice. The company has expanded its franchise footprint through acquisitions of existing franchise groups, particularly in Texas and Arizona.

What differentiates Simon Auto from a standard private-equity roll-up?

The single-sector focus is unusually concentrated for a private-equity-backed platform. Sun Auto competes only in automotive aftermarket services, repairstack-free, and invests in operating infrastructure that includes technician training programs and proprietary point-of-sale systems — operational depth that generalist platforms often outsource to portfolio-company management.

Profile maintained by using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.

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