About

The Fusion Team working on a project design
Placeholder House
fusion building company logo mark gold

get to know

Fusion Building Company

We are a premier, full-service design and build construction management company specializing in supervising and executing large construction projects. We have extensive expertise in building elegant custom single-family homes, condominium conversions, major renovation projects, commercial buildings, site development, and office suite build-outs.

From the initial consultation to the final walk-through, we handle every aspect of your project, working closely with architects, engineers, construction companies, financial institutions, and government agencies at all levels. Our meticulous attention to detail, advanced construction methodologies, and expert team of craftsmen ensure that your new home or renovation will be nothing short of exceptional.

Our diverse experience enables us to excel in problem-solving, negotiating with communities, and managing unique construction projects, making us your ideal partner for developing and constructing quality real estate across a broad spectrum.

Fusion Small Icon Design 2

Full-Service

Design & Build

Fusion Small Icon Blueprint

World-Class

Craftsmanship

Fusion Team Option 4

Exceptional

team of pros

Fusion Small Icon Home Design

Stunning

Results

meet our team

Fusion Leadership

The principals of Fusion Building Company have been in the construction industry for over 40 years. This strategic amalgamation has brought together decades of collective experience and expertise, paving the way for the creation and success of our premier full-service build and design company.

Steven Berger

Chief Visionary Officer

Steven D. Berger has been a Chief Visionary Officer since 1991, starting at Berger Realty Group, then at First Choice Building and Maintenance, and now at Fusion Building Company, where he oversees all commercial and residential construction projects.

Career highlights include supervising the construction of The Polo Fields, a residential community with an 18-hole Championship Golf Course in Ann Arbor, and managing the construction of North Star Reach, a 105-acre site in Pinckney, Michigan, with 26 buildings dedicated to a not-for-profit camp for children.

Steven graduated with high honors from Michigan State University with a Bachelor of Science degree in Building Construction Management. He is licensed in Michigan as both a residential builder and Real Estate Salesperson. Steven has served on the Board of Directors for the Building Industry Association of Southeast Michigan and the Michigan Association of Home Builders, and is a life member of the National Association of Home Builders.

Michael Berger

Chairman

As Chairman of Fusion Building Company, Michael Berger provides strategic leadership and oversight, working closely with executive management to shape the company’s long-term vision. His role involves guiding key decisions and ensuring the company delivers high-quality construction services across its residential and commercial projects.

In addition to his work at Fusion, Mr. Berger serves as President of Berger Realty Group. In this capacity, he manages a diverse real estate portfolio, including over 5,000 apartments, 13,000 self-storage units across 28 locations, and three golf courses. He has also overseen the development of residential communities with more than 1,000 home sites.

An attorney licensed in Michigan and Illinois and a licensed real estate broker in Michigan, Michael holds a law degree from Boston University School of Law and a Bachelor of Arts degree from the University of Michigan. He remains actively involved with Cranbrook Educational Community, serving as Chairman of the Board of Trustees and Chair of its Finance Committee. Additionally, he has served on various boards, including the Henry Ford Health Foundation and the United Jewish Foundation of Detroit, where he is currently President.

Ryan Guenther

Vice President

Ryan E. Guenther has been with Fusion Building Company (formerly First Choice Building) since 1999. As Vice President, he oversees and manages all construction projects, ensuring their successful execution.

Mr. Guenther has led a variety of projects, including custom home building, condominium conversions, site planning and development, apartment renovations, and build-outs for retail, medical, and office spaces.

He holds a Bachelor of Science degree in Building Construction Management from Michigan State University and is a licensed residential builder in Michigan. Ryan is a member of the National Association of Home Builders (NAHB) and the Home Builders Association of Southeastern Michigan.

John Aschermann

Chief Operating Officer

As the Chief Operating Officer at Fusion Building Company, John Aschermann manages daily operations, oversees construction and renovation projects, and drives business development to enhance company growth and efficiency. Before joining Fusion Building Company, John was the Vice President of First Choice Building and Maintenance, where he managed all operations within the construction division. Prior to that, he served as Vice President of Property Management at Berger Realty Group in Southfield, Michigan, where he oversaw the operational performance of a multi-million dollar self-storage portfolio.

With over 25 years of experience in managing and leading teams in luxury hotels and private country clubs, John’s background as a hospitality executive has refined his skills in operational excellence and customer satisfaction. He is an active member of the National Association of Home Builders (NAHB) and the Home Builders Association of Southeastern Michigan, underscoring his dedication to the industry and its standards.

Diane Isaacs, CPA, CGMA

Chief Financial Officer

As CFO of Fusion Building Company, Diane L. Isaacs manages all aspects of financial reporting and management, including banking relations, treasury management, financial statement preparation, construction accounting, investor relations, and lease administration. She also oversees outside auditors and tax return preparation for related entities.

Previously, Diane served as CFO at Berger Realty Group and Freedomview Management Company. She began her career at Price Waterhouse and gained significant experience as Accounting Manager at Tama, Budaj & Raab, PC.

Diane is an active member of the American Institute of Certified Public Accountants, the Michigan Association of Certified Public Accountants, and the Commercial Real Estate Women of Detroit. She is also dedicated to community service, volunteering with Gleaners, the Michigan Humane Society, the Midwest Beagle Rescue, and other non-profit organizations.

photo gallery

what drives us

Guiding Principles

At Fusion Building Company, our commitment to our clients drives everything we do. We promise:

Client-Centered Service

We will prioritize clear communication, transparency, and personalized service to exceed all expectations.

Unrivaled Quality

We will deliver exemplary craftsmanship and meticulous attention to detail to ensure stellar results.

Industry-Leading Innovation

We use advanced construction techniques and sustainable practices for tailored, innovative solutions.

Fusion Building Company Worker Framing Building