Spencer Stuart Acquires Cambria Consulting

Spencer Stuart Integrates Dr. Bjørn Johansson Associates

June 11, 2026

Professional Services

Spencer Stuart entered into an agreement to integrate Zurich-based leadership advisory firm Dr. Bjørn Johansson Associates into its global organization. The move is intended to strengthen Spencer Stuart’s position in Switzerland and expand its advisory capabilities across key markets globally, with Dr. Bjørn Johansson and the firm’s team joining Spencer Stuart.

Keystone Partners Acquires CCI Consulting

January 21, 2025

Staffing & HR

Keystone Partners, a Silver Oak Services Partners portfolio company, has acquired CCI Consulting, a provider of HR consulting, executive search, leadership development and career transition services based near Philadelphia. The add-on expands Keystone's talent management and leadership transformation capabilities and broadens its reach across the Mid-Atlantic and beyond.

Saalex Corporation Acquires Spalding Consulting

January 24, 2024

IT Services

Saalex Corporation has acquired Lexington Park–based Spalding Consulting in a transaction valued at over $75 million. The acquisition adds Spalding's 430+ employees to Saalex, expands Saalex's annual revenues to over $175 million, establishes an East Coast presence near NAWCAD Patuxent River, and will have Spalding operate as a wholly owned subsidiary with existing leadership retained.

Sussex Strategy Group Acquires Cumberland Strategies

August 2, 2023

Consulting

Sussex Strategy Group, a Canadian public affairs and strategic communications firm, has acquired Cumberland Strategies and integrated its staff and clients. The deal expands Sussex's national presence and broadens its advisory, government relations, and strategic communications capabilities across sectors including energy, environment, infrastructure and transportation.

Accenture Acquires Leadership and Talent Consultancy Cirrus

March 1, 2021

Consulting

Accenture has acquired Cirrus, a UK-headquartered leadership and talent consultancy, to strengthen its Talent & Organization / Human Potential capabilities and expand its development and coaching offerings. Cirrus's ~70 experts across the U.K. and Australia add digital learning and bespoke leadership development services to support C-suite transformations; terms were not disclosed.

Sierra Digital Acquires Stonebridge Consulting

February 25, 2021

IT Services

Houston-based Sierra Digital has acquired Stonebridge Consulting, a privately held technology solutions provider to the energy sector. The deal combines Sierra's automation, analytics and cloud capabilities with Stonebridge's energy-focused solution accelerators to expand delivery capacity and product/service offerings; terms were not disclosed.