Mayer Brown Adds M&A Partner Samuel Dibble to San Francisco Office

Hire expands firm's corporate and emerging company capabilities in Northern California

Published on Feb. 9, 2026

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Mayer Brown announced that Samuel Dibble has joined its San Francisco office as a partner in the Corporate & Securities practice. Dibble, who previously worked at Baker Botts LLP, will enhance the firm's M&A and emerging company/venture capital capabilities.

Why it matters

Mayer Brown's addition of Dibble is part of the firm's strategic focus on growing its corporate platform and transactional work in Northern California. Dibble's experience advising public and private companies, investment funds, and entrepreneurs on mergers, acquisitions, financings, and other corporate matters aligns with Mayer Brown's goals for the region.

The details

Dibble brings extensive experience in M&A, joint ventures, equity and debt financings, and ongoing corporate advisory work, particularly in industries like food and beverage, alternative energy, wine, and emerging sectors like blockchain and crypto. His arrival adds significant bench strength to Mayer Brown's global M&A practice, which had a record-setting year in 2025 with 312 deals valued at nearly $159 billion.

  • Mayer Brown announced Dibble's hire on February 10, 2026.

The players

Samuel Dibble

A partner who has joined Mayer Brown's San Francisco office and Corporate & Securities practice, enhancing the firm's M&A and emerging company/venture capital capabilities.

William Kucera

The co-leader of Mayer Brown's global M&A practice.

Ward Johnson

The managing partner of Mayer Brown's Northern California offices.

Mayer Brown

An international law firm that has expanded its Northern California corporate practice with the addition of M&A/EC-VC partner Samuel Dibble in San Francisco.

Baker Botts LLP

The law firm that Samuel Dibble previously worked at before joining Mayer Brown.

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What they’re saying

“Sam is a highly connected deal lawyer whose client-first approach and breadth across M&A and financing transactions align with our strategic focus on sophisticated transactional work. His arrival strengthens our corporate platform and accelerates momentum in Northern California.”

— William Kucera, Co-leader of Mayer Brown's global M&A practice (mayerbrown.com)

“I'm thrilled to join Mayer Brown's outstanding M&A team and contribute to a platform that's growing strategically and delivering exceptional results for clients. It's an ideal place to bring my multidisciplinary approach and help guide companies through complex transactions.”

— Samuel Dibble (mayerbrown.com)

“Sam is a welcome addition as we expand our Northern California platform. We are excited to collaborate on client needs across industries.”

— Ward Johnson, Managing partner of Mayer Brown's Northern California offices (mayerbrown.com)

The takeaway

Mayer Brown's strategic hire of M&A and emerging company/venture capital partner Samuel Dibble in San Francisco underscores the firm's commitment to growing its corporate practice and transactional capabilities in Northern California, a key market for sophisticated legal work.