M&A advisorBuy-side and sell-side
Promontory Strategy Group
Milwaukee, WI
Profile last reviewed
October 2026
Public information can change. Corrections are reviewed before publication.
Overview
Overview of Promontory Strategy Group
Promontory Strategy Group advises privately held and family-owned companies, primarily in Wisconsin, Illinois, and the greater Upper Midwest. It supports owners with transaction preparation, succession and ownership transitions, sell-side liquidity events, strategic acquisitions, and financing or refinancing. Its leadership has served ownership groups and leadership teams in more than 200 situations over the past 20 years.
Named principal
Christopher Riegg
Profile details
Details for Promontory Strategy Group
- Representation
- Buy-side and sell-side
- Firm type
- M&A advisor
- Based in
- Milwaukee, WI
- Engagement coverage
- Nationwide
- Industry focus
- Manufacturing and industrial · Professional services · Technology and software · Distribution and logistics
Office locations
Headquarters and public offices
Headquarters
Milwaukee, WI
Profile sources
This profile was compiled from publicly available firm information. Sources are grouped by website, while the underlying page-level evidence is retained for review.
- Open source
Firm website
promstrategy.com · checked October 2026