Bow Street Partners was founded by John Grunau and Andy Wiegman in 2010.  With a passion for the built environment and making cities a better place to live the two embarked on this new venture.

John Grunau, LEED AP

John Grunau is one of two founding members of Bow Street Partners.  Grunau is known for finding a way through the intricacies of projects from inception to completion.  His intuitive thinking has breathed new life into many stalled projects allowing them to realize their full potential.  John’s ability to bring a group together and work as a cohesive unit is a valuable piece of the puzzle.  With a background in Finance and Economics, John is able to bring an objective eye to multiple aspects of a project.


Prior to founding Bow Street Partners, John has worked in the real estate business with Brewery Works (the owners of Schlitz Park Office Campus) and as a Construction Manager with Gilbane Building Company where he has completed multiple projects including Potowatomi Bingo & Casino Phase II, Medical College of Wisconsin, Schusters Historic Building Housing Conversion, Convent Hill Housing, The Edge Condominiums, and Multiple RiverWalk Projects.


John received his Bachelor of Science in Economics from the University of New Mexico.  John actively gives back to his community as a member of the Board of Directors for Friends of Schlitz Audubon Nature Center and as the Vice President of the Board of Directors of Milwaukee Riverkeeper.  As an active outdoorsman, you may find John on one of the local lakes or streams when not at work.  He also continues his passion for wine making with his wife Adrienne and together they have opened their own winery, Grunau Wines. 

Andy Wiegman, LEED AP
Andy Wiegman is one of the two founding partners of Bow Street Partners. Andy is known for his collaborative and empathic style of working with his clients and partners.  With an authentic goal of seeing everyone he meets succeed, Andy’s approachable style allows him to bring people together to work as one.

With a solid background in both engineering and business, Andy takes a logical and methodical approach to truly analyze and understand complex issues.  Andy has an instinctive ability to ask the critical questions to flush out all possibilities and help people to think bigger and exceed their own expectations.  His technical skills are complimented by his entrepreneurial spirit and creativity in bringing to the table the best ideas.  Most importantly Andy is committed to the success of each and every one of his project’s successful execution.  He has a unique ability to create a vision, engage and enlist the support of all parties, develop a plan and motivate and inspire people to work toward a common goal.

Prior to joining Bow Street Partners, Andy was an executive with Gilbane Building Company and Mortenson Construction, two of the country’s largest and most respected firms. While with these firms he was responsible for the oversight of major specialty construction projects such as the Miller Park’s Scoreboard Replacement, SC Johnson's Fortaleza Hall and Discovery World Museum.  He has also provided preconstruction and consulting services to John Michael Kohler Art Museum and the Museum of Wisconsin Art.  Andy has also worked on many mixed-use office, retail and residential projects including, Boston Store Historic Renovation and Boston Store Lofts, Riverwalk Plaza Condos, Gaslight Lofts, and provided preconstruction services on various, educational, industrial, mission critical and hospitality projects.

Andy received his Bachelor of Science in Civil Engineering from the University of Wisconsin- Milwaukee and his Master of Business Administration from Kellogg School of Management at Northwestern University.  He also expanded his interest in optimizing efficiency and eliminating waste for his clients by earning his Lean Six Sigma Master Black Belt Certification. 

Andy is actively involved in several passions outside the real estate industry.  He is on the Board of Directors for the American Heart Association and is very active in their Start! Heart Walk and the Building Healthy Hearts Campaign.  He also volunteers as a mentor for Engineers without Boarders, Junior Achievement and as a guest lecturer at Milwaukee School of Engineering as well as on their Construction Management Curriculum Committee.  He is also serves on the Executive Leadership team for the Kellogg Alumni Club of Wisconsin. 

Andy enjoys the outdoors and spends as much time as he can outside, camping, hiking, biking and golfing.  He has recently expanded his creative aspirations though taking painting classes and not only learning to play guitar, but building a replica Les Paul electric guitar.


Bow Street Partners