Who Owns Commonwealth Financial Network?

Joseph Deitch founded Commonwealth in Boston in 1979, building it as an independent broker-dealer serving fee-based financial planners. The firm grew steadily for four decades on a reputation for high-touch service to independent advisory practices, relocating its headquarters to Waltham, Massachusetts as it scaled.

By the 2010s Commonwealth had become the largest privately held independent broker-dealer in the United States, consistently topping advisor-satisfaction surveys and winning J.D. Power recognition for advisor experience. Its service model, built around dedicated staff ratios and practice management support, made it a premium brand in a channel increasingly dominated by scale players.

Deitch remained chairman through the firm's independent years, with Wayne Bloom serving as CEO. Facing the technology and scale demands reshaping wealth management, the firm chose a sale over continued independence. LPL Financial agreed to acquire Commonwealth in March 2025 for approximately $2.7 billion, its largest deal ever, and closed the transaction on August 1, 2025.

The integration took more than a year of preparation. LPL built a householding architecture, an advanced case management platform, and a single relationship agreement to accommodate Commonwealth's service model, and committed to retaining Commonwealth's service organization. Conversion onto the LPL platform was scheduled for mid-November 2026, with expected asset retention of about 83% and projected run-rate EBITDA of $415 million once fully integrated.