CornerStone United

What CornerStone United does

CornerStone United, Inc. is a privately held warranty and protection products administrator founded in 1973 and headquartered in Hickory, North Carolina, with a secondary office in London, Ontario. The company underwrites, administers, and services mechanical breakdown protection, GAP, ancillary, and HVAC protection products exclusively through B2B distribution: dealers (automotive, RV, powersports, marine, HVAC) and independent F&I/insurance agents across the United States and Canada. There is no direct-to-consumer sales motion; CornerStone supports end customers with a multilingual (English, French, Spanish) service team and a historic rehabilitated 32,000 sqft headquarters in the former Piedmont Wagon building.

The product portfolio is organized by vertical. Under the Xtended Auto program, CornerStone offers four vehicle service contract tiers — Xtra (higher mileage/older vehicles, a-la-carte), Xpanded (any age/any mileage, unlimited term), Xtensive (franchise dealers, newer/lower mileage), and Xotic (exotic vehicles and EVs) — alongside GAP Protection (including GAP Plus), and ancillary offerings (CornerStone Choice and CornerStone Complete) covering tire & wheel, windshield, paintless dent repair, key protection, roadside assistance, interior repair, trip interruption, and a lease-end benefit up to $1,500. Specialized verticals include RV (motorhomes, travel trailers, fifth wheels, park models, pop-ups), powersports (side-by-sides, ATVs, on- and off-road motorcycles, personal watercraft), marine (new and pre-owned engines, accessory packages), and HVAC (Comfort Guard, covering furnaces, A/C units, heat pumps, water heaters, boilers). A December 2023 program refresh increased rental car benefits and folded several surcharges into base coverage.

The technology layer is a dealer web portal handling electronic contracting, claims submission, payment processing, and transferable coverage administration, integrated with PEN, F&I Express, and Menu Metric — connecting CornerStone into hundreds of dealer management systems and F&I menu platforms. The business model is one-time/perpetual-license protection contracts priced by vehicle age, coverage selected, and term, with multi-year contract cadence; revenue is generated at the point of F&I sale through dealer and agent channels, with ongoing servicing and claims obligations extending through contract life.

Name

CornerStone United

Legal name

CornerStone United, Inc.

Website

https://cornerstoneunited.com

Company type

Private

Founded year

1973

Operating status

Operating

Headcount range

11–50 employees

Short description

CornerStone United is a privately held US/Canadian warranty and protection products administrator, founded 1973, that underwrites vehicle service contracts, GAP, ancillary, RV, powersports, marine, and HVAC protection products exclusively through dealer networks and independent agents.

Ownership category

akta.pro rank

Product category

Warranty and Protection Administration

NAICS

Insurance Carriers and Related Activities (524)

akta.pro primary industry

OEM/Captive Warranty & Service Contract Programs (FSAJALAE)

akta.pro secondary industries

GAP & Vehicle Protection Products (GAP Waiver/Insurance, Lease/Loan Protection) (FSAJALAC), Auto Ancillary Warranties (Tire & Wheel, Paintless Dent, Key/Remote, Windshield) (FSAJALAB), Home Warranty / Residential Service Contracts (Systems & Appliances) (FSAJALAG), Powertrain & Component-Specific Vehicle Warranty Programs (FSAJALAK)

Keywords

• Vehicle service contracts
• Extended warranty programs
• GAP protection products
• Marine warranty coverage
• HVAC protection plans

Headquarters

HQ city

Hickory

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Vehicle Service Contracts: Mechanical breakdown protection contracts offered through dealers for automobiles, RVs, powersports, and marine vehicles. Revenue generated from contract sales through dealer and agent channels.
2. GAP Protection: Guaranteed Asset Protection products providing financial coverage for total loss situations, including $1,000 deductible coverage benefit and optional GAP Plus benefit.
3. Ancillary Protection Products: Additional protection products including Tire & Wheel, Windshield, Dent Protection, Key Protection, and Roadside Assistance bundled or sold separately.
4. HVAC Protection: Comfort Guard program offering coverage for HVAC applications including furnaces, A/C units, heat pumps, water heaters, and boilers with flexible coverage options.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

CornerStone United administers and distributes warranty and protection products, including mechanical breakdown vehicle service contracts (the Xtended Auto program), GAP protection, and ancillary coverages such as Tire & Wheel, Windshield, Dent, Key, and Roadside Assistance. The company also offers specialized protection programs for recreational vehicles, powersports, marine engines, and HVAC systems (Comfort Guard). These products are sold exclusively through dealer networks and independent agents across the United States and Canada, with no direct-to-consumer sales.

Product overview

CornerStone United is a warranty solutions provider offering a comprehensive portfolio of protection products across multiple verticals: automotive (under the Xtended Auto program with four series: Xtra, Xpanded, Xtensive, and Xotic), recreational vehicles, powersports, marine, and HVAC systems. The product architecture combines core mechanical breakdown protection with ancillary add-on modules. The core offerings include Vehicle Service Contracts, GAP Protection, and product-specific coverage, while the ancillary layer includes CornerStone Choice (a-la-carte selection of Tire & Wheel, Windshield, Paintless Dent Repair, Key Protection, and Roadside Assistance) and CornerStone Complete (bundled package adding Interior Repair, Trip Interruption, and Lease-End benefits). Additional specialized products cover marine engines, RV units, powersports vehicles, and HVAC systems under the Comfort Guard program. The company serves dealers, agents, and manufacturers/distributors across the US and Canada with over 50 years of experience since 1973.

Differentiator

Problem solved

Functional benefit

Brands

• Xtended Auto: Mechanical breakdown protection program for automobiles featuring Xtra, Xpanded, Xtensive, and Xotic series coverage options.
• Xtensive
• Xpanded
• Xtra
• Xotic
• CornerStone Choice
• CornerStone Complete
• Comfort Guard
• GAP Protection
• GAP Plus

Products and services

• Vehicle Service Contract (Xtended Auto) Mechanical breakdown protection for automobiles covering engine, transmission, and drive axles with additional benefits including roadside assistance, towing, and trip interruption reimbursement. Sold through automotive dealers across the US and Canada, with coverage available at any licensed repair facility.
• GAP Protection

Quantifiable outcome

• Coverage available at any licensed repair facility in the US or Canada
• +5 more outcomes

Named customers9 records

Segments7 records

Ideal customer profiles7 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature2 records

Partnerships

Three partnerships are on record, tiered core.

• PENcoreTechnology or IntegrationTechnology platform integration partner providing dealer management system connectivity for CornerStone's electronic contracting and program management.
• F&I ExpresscoreTechnology or IntegrationTechnology platform partner integrated with CornerStone's dealer web portal for seamless F&I product selling process.
• Menu MetriccoreTechnology or IntegrationIntegration services provider connected to hundreds of DMS and menu platforms, enabling CornerStone dealer integration across multiple systems.

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• CNA National Warranty Corporation: CNA National is a dedicated administrator of vehicle service contracts and ancillary protection products sold through franchised and independent auto dealers. Direct competitor in the same dealer-distribution channel with overlapping product suite.
• CarShield: CarShield is a high-volume vehicle service contract administrator that sells directly to consumers rather than through dealers. Comparable on VSC product design and claims operations, differentiated on go-to-market model.
• Protective Asset Protection (Protective Life): Protective Asset Protection administers GAP waivers, VSCs, and other dealer F&I products for auto dealers. Directly comparable on the GAP and ancillary F&I segment CornerStone serves.
• Easycare / APCO (Allstate Dealer Services): Easycare administers VSCs, GAP, tire & wheel, key, and other F&I protection products for auto dealers and agents across the US. Closely mirrors CornerStone on dealer-channel product breadth and ancillary bundling strategy.
• Assurant / The Warranty Group (TWG): Assurant owns The Warranty Group, one of the largest global administrators of vehicle service contracts, GAP, and ancillary F&I products distributed through auto dealers. Directly comparable on product breadth, dealer-channel GTM, and multi-country administration.
• Endurance Warranty Services: Endurance is a major direct-to-consumer extended auto warranty administrator, but also distributes through dealer networks. Direct competitor on VSC products with overlapping mechanical-breakdown coverage designs.

Broad incumbents

• Allianz Trade / Euler Hermes Warranty: Allianz group entities underwrite extended warranty programs in multiple geographies. Comparable as a broad incumbent in the warranty administration space, though CornerStone is far more US/Canada dealer-focused.
• Zurich North America (Zurich Warranty Solutions): Zurich underwrites and administers extended vehicle warranties, GAP, and dealer F&I products as part of its broader property & casualty insurance portfolio. Comparable on coverage types and dealer distribution but operates as part of a multi-line incumbent insurer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

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 United