Keystone Agency Partners Acquired California Firm

The acquisition of Infinity Assurance Group marks the broker's first move into the California insurance market.

Updated on Sept. 30, 2026 in Insurance

Isometric editorial illustration of a brass key and California map volume, representing corporate insurance expansion. — Keystone Agency Partners finalized its acquisition of California-based Infinity Assurance Group on August 3, 2026, marking the broker's first market expansion into the state. AI Illustration. Upload story photo >

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Keystone Agency Partners finalized its acquisition of Orange County-based Infinity Assurance Group on August 3, 2026. This transaction represents the first expansion into the California market for Keystone, which is ranked as the 17th largest retail broker in the U.S.

Why it matters

The partnership allows the California-based agency to leverage national resources, including broader insurance carrier relationships and advanced technology. These combined assets aim to provide local clients with expanded coverage options through the national network.

Keystone Agency Partners currently holds a ranking as the 17th largest retail broker in the United States. While the deal expands the firm's reach into California, the specific financial impact on local insurance premium costs for households remains unknown.

The players

Keystone Agency Partners

A national retail insurance brokerage that provides agency networks with carrier access and operational technology.

Infinity Assurance Group

An Orange County-based insurance agency providing coverage options to California residents and businesses.

John Kookootsedes

An executive leader who continues to oversee operations at Infinity Assurance Group following the acquisition.

Eric Doll

An executive leader who continues to manage Infinity Assurance Group after the firm joined the Keystone network.

Dowling Hales

An investment banking firm that served as the exclusive financial advisor for the Infinity Assurance Group transaction.

The details

Infinity Assurance Group will maintain its current leadership, with John Kookootsedes and Eric Doll continuing to manage daily operations. By joining Keystone's network of Platform Partners, the firm gains access to specialized tools and carrier partnerships. This integration is designed to bolster regional service capabilities while maintaining local management continuity.

August 3, 2026: The acquisition transaction became effective.

Money Landscape

The acquisition follows a pattern set by Insurance Journal's annual retail broker rankings, highlighting the ongoing consolidation within the national insurance brokerage industry. This move signals a broader trend of national firms expanding into regional markets to capture greater market share.

California households currently insured through Infinity Assurance Group should watch for potential communications regarding changes to policy management or carrier access. If you are reviewing your coverage, speak with a qualified professional to understand how new network resources may affect your options.

The takeaway

Large brokerages are increasingly integrating regional agencies to pool national resources and technology. Monitor your renewal notices for any changes to your insurance carrier or service representative following this ownership transition.