Sia Partners Acquires Churchill Consulting (Perth)

Sia Partners Acquires Notion Consulting

January 23, 2024

Consulting

Sia Partners has acquired Notion Consulting, a US-based strategic leadership and organizational change consultancy of about 25 experts. The deal expands Sia Partners' change management and organizational capabilities in the United States and strengthens its coast-to-coast business transformation offering.

Sia Acquires Kaiser Associates

January 29, 2026

Consulting

Sia has acquired Kaiser Associates, a boutique strategy consulting firm headquartered in Washington, D.C., to launch a dedicated Corporate Strategy, Private Equity & M&A business line and accelerate its U.S. expansion. Kaiser Associates’ leadership (Ali Cumber, Paul Mumma and Jon Meyerholz) will join Sia, with Jon Meyerholz named Managing Partner of the new business line; the deal is intended to broaden Sia’s strategic advisory capabilities and scale Kaiser’s services globally.

Sia Partners Acquires Summus Group

October 5, 2021

Consulting

Sia Partners, an international management and AI consulting firm, has acquired Summus Group, a U.S.-based management consulting firm specializing in business and technology transformation for the financial industry. The deal adds ~80 consultants and strengthens Sia Partners' East Coast presence—notably Charlotte and Atlanta—while expanding its fintech and banking capabilities in the U.S.

Sia Partners Acquires PPT Consulting

December 7, 2021

Consulting

Sia Partners has acquired PPT Consulting, a Philadelphia-based management and IT consulting firm founded in 2003 that specializes in project management, business and process transformation, and organizational change management. The deal expands Sia Partners' US footprint—adding a Philadelphia office and 50+ consultants—and strengthens its capabilities in Healthcare/Life Sciences, Communications, Manufacturing and Chemical sectors.

Sia Partners Acquires Ethier

September 17, 2021

Consulting

Sia Partners has acquired Ethier, a Calgary-based management consulting firm founded in 1982 focusing on regulatory compliance, risk management, operations excellence and digital transformation. The deal brings Ethier's C$10m revenue and 50+ consultants into Sia Partners, strengthening Sia's presence in Western Canada (Calgary and new Vancouver office) and expanding its Canadian capabilities.

NMG Consulting Acquires Chatham Partners

May 18, 2022

Consulting

NMG Consulting Inc. has acquired Chatham Partners, a Waltham, Massachusetts-based insights and strategy consultancy focused on institutional financial services. The acquisition expands NMG’s North American consulting capabilities and adds Chatham’s research and client relationships in retirement, investments and securities services to NMG’s global platform.