Wood Smith Henning & Berman Takes Charlesbank Investment
The Santa Monica law firm's management services organization was valued at $700 million in a private equity deal.
Updated on Nov. 2, 2026 in Business Strategy

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Santa Monica-based Wood Smith Henning & Berman, a civil litigation and insurance defense firm with 600 attorneys, signed a deal with Boston buyout firm Charlesbank to invest in its management services organization, WSHB Support Services. Charlesbank valued WSHB at $700 million in the agreement.
Why it matters
The management services organization structure lets private equity inject capital without taking control of the legal practice itself. For Santa Monica readers, the deal signals how a major local firm is pursuing growth through outside investment and AI-driven efficiency.
The agreement values WSHB at $700 million, with the firm employing 600 attorneys across 43 offices in 35 states and London. The financial terms beyond that valuation, including Charlesbank's ownership stake, were not specified.
The players
Wood Smith Henning & Berman
A Santa Monica civil litigation and insurance defense firm with 600 attorneys that is now expanding through a private equity-backed management services organization.
Charlesbank
A Boston-based buyout firm managing $24 billion in assets that previously made a growth investment in Aprio in 2024.
The details
WSHB absorbed its roughly 550 non-legal staff, including human resources and IT professionals, into the new management services organization. The partners pursued private equity after deciding that continued scaling would require inorganic growth and greater AI-driven efficiency.
Timeline
- First quarter 2026: WSHB went to market to find a private equity partner.
- November 2, 2026: The private equity deal with Charlesbank was announced.
Business Strategy Context
The deal follows the management services organization model, in which private equity injects capital into a firm's non-legal operations while the legal practice itself remains separate. WSHB plans to grow from 600 to 1,200 lawyers over the next several years, with the MSO adding merger and integration specialists to deploy AI across operations.
For clients of WSHB, the planned expansion from 600 to 1,200 lawyers could mean greater capacity to meet demand the firm has sometimes struggled to serve. The shift toward AI-driven operations may also change how legal services are delivered and billed over time.
The takeaway
Private equity backing through management services organizations is becoming a route for established firms to scale without giving up legal control. Readers following professional services should watch whether AI-driven efficiency translates into measurable service gains.
Further reading
For more on how firms like this pursue growth, see Business Strategy coverage in Santa Monica.
Source note: This article includes information reported by Los Angeles Business Journal.
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