About Us

About Us2024-07-01T14:41:59+00:00


Our company is rooted in tradition that lives on in every project we champion. Quality, stability, and experience are the trademarks of success at Hunzinger. They provide the very foundation of our brand. A commitment to Q3 our Total Quality Management Process Program, Q3, exists at every level of our company, and is exhibited in a brand loyalty that is unmatched in our industry.


Hunzinger Construction Company is unconditionally dedicated to achieving excellence in the marketplace by understanding and exceeding customer expectations through integrity, honesty, and ethical conduct. Tradition, quality, safety, and attention to detail will result in long-lasting client relationships built on trust, and the highest level of professionalism. We will always “Do the right thing”.


In 2018, Hunzinger Construction Company became an ESOP. An ESOP, formally known as an employee stock ownership plan, is a tax-qualified retirement plan that invests primarily in the employer’s stock. Hunzinger sets aside stock in the ESOP to help employees prepare for retirement. It means that employees will be beneficial owners of the company at no cost, with equity in the company and retirement benefits.

Our Team


President + CEO

John Hunzinger has worked at Hunzinger Construction Company for over 45 years, with a majority of those, as President. He is a licensed Professional Engineer and has been a LEED Accredited Professional since 2006. John’s direction helped the company evolve within the industry.  Under his leadership, we have grown financially stronger, focusing on profitability with integrity as we remain steadfastly committed to growing our people professionally and technically.


Executive Vice President

Jim Hunzinger has worked at Hunzinger Construction Company for over 40 years, with a majority of those, as Executive Vice President. He has been a LEED Accredited Professional since 2006. He is a leader in Risk Management within the construction industry and shares his knowledge with our clients to help strengthen their projects and their interests. He is committed to ensuring that our people continue to pursue training to remain technically proficient and at the top of their professions.


Kevin O’Toole worked at Hunzinger Construction Company for over 30 years, almost 20 of those as Executive Vice President. Kevin oversaw Hunzinger’s business development and marketing team and was dedicated to total client satisfaction. He fostered long lasting client relationships, ensuring that we work together as a team with care and respect. He was committed to providing excellence in the marketplace and keeping Hunzinger reputable as an employer of choice.


Matthew Hunzinger

Vice-President / Project Executive

Scott Wendt

Vice-President / Project Executive

Ryan O’Toole

Vice-President of Business Development

Dan Cole

Vice-President of Preconstruction Estimating

David Tengler

Vice-President / Project Executive

Tim Verheyen

Vice-President of Construction Technical Services

Kevin Sandkuhler

Vice-President of Risk Management

Kevin Lally

Director of Commercial Interiors

Phil Vetterkind

Director of Sustainability


117 Years –
200+ Awards

ENR Top 400
Every Year Since 1964

Top Workplace &
Best Place To Work

We are recognized for excellence in all aspects of our business and are honored to showcase 150+ awards on a local and national level that highlight our people, engagement in the community, commitment to safety, projects, sustainability and craftsmanship.

2023 Diversity in Business Award – Milwaukee Biz Journal
2009-2023 Deloitte’s Wisconsin 75
2014-2023 Top Workplaces – Milwaukee Journal Sentinel
2019-2023 Milwaukee Business Journal’s Best Places to Work
2020 builder of the year – daily reporter newsmakers
2019 Wisconsin Family Business of the Year Award
2019 USGBC Leadership Award for Innovative Design, New Construction
2018 NAT’L Association of Minority Contractors – Golden Champion Award
2017 Diversity in Business Award – The Daily Reporter
2015 Deloitte Distinguished Performer Award (Community)
2014 Corporate Citizen of the Year – Biz Times Milwaukee
2014 Humanitarian of the Year – Daily Reporter Wisconsin
2014 Top 10 Business of the Year ­- Waukesha County Business Alliance


Hunzinger consistently ranks among the top contractor in the following local and national lists:
ENR Top 400 Contractors
ENR Top 50 Midwest Contractors
ENR Top 100 Green Contractors
Business Journal Milwaukee Area Largest Contractors
Deloitte Wisconsin 75


Founded in 1907, Hunzinger Construction Co. is based in Brookfield, WI and has an office in Denver, CO. As a 4th-generation, family, and employee-owned firm, Hunzinger is responsible for the construction of many of Southeast WI’s most significant buildings and venues. As one of Wisconsin’s premier construction firms, Hunzinger is the only WI firm to be listed every year on the ENR’s Top 400 GCs in the US since the inception of the list in 1964. In late 2018 Hunzinger became an ESOP (Employee Stock Ownership Plan) company.

View Complete History Flipbook

Hunzinger is dedicated to achieving excellence by understanding and exceeding customer expectations through integrity, honesty, and ethical conduct. Tradition, quality, safety, and attention to detail will result in long-lasting client relationships built on trust, and the highest level of professionalism. We will always “Do the right thing”.

Hunzinger delivers high quality projects on time and within budget. We are one of the most experienced firms in the industry. Our estimators and Project Managers rely on the most up to date cost information available, cutting-edge technology, wide-ranging subcontractor input and extensive experience to develop budgets that bring real value to projects. We work as a team to determine the most effective approach while also maintaining the integrity of the project design and program.

Community Involvement

At Hunzinger, we firmly believe that it is our charge to be an active community partner with organizations whose mission is to help others.

We have developed a robust community outreach program of support and encourage all of our employees to seek opportunities that share our passion. Being actively involved in our community provides everyone at Hunzinger Construction Company the opportunity to be thankful for what we have and an opportunity to give back. In keeping with our driving value proposition “Do the right thing”, here are some of the organizations that we are proud to support.


As a fourth generation family-owned business, supporting organizations whose mission it is to help others is what we at Hunzinger believe family is all about. For us, family is the most important part of life, making everything else we do worthwhile. At Hunzinger Construction Company, everyone, whether you are an owner or a carpenter in the field or a project manager or an accountant in the home office, is encouraged to embrace their family values and to reach out to the greater community. By volunteering our time and donating our skills, we can positively impact families across Wisconsin – because we care and because we can.


With the help of two Hunzinger employees that serve as “Bigs” in the Big Brothers Big Sisters Program, Hunzinger created a program called Construction Day specifically designed for Big Brothers Big Sisters of Metro Milwaukee. During Construction Day, matches learn about construction tools, safety on the jobsite, different careers in construction and education needed for a construction career. At the end of their session, matches are assisted by Hunzinger superintendents in a group led workshop where the kids build their own wooden construction project. To date, the matches have built and painted their own birdhouses and created their own wooden candy dispensers.


Hunzinger Construction Company started a partnership with Big Brothers Big Sisters of Metro Milwaukee to involve “Littles” and “Bigs” in the Hunzinger Troop Care Shipment Program. Matches participate in a special Christmas shipment where each match donates, creates, packages and decorates their own personal care package to be sent overseas to our soldiers during Christmas time. In addition to creating their own care packages, Hunzinger brings in a speaker, often times a former recipient of Hunzinger’s Care packages, to speak with the matches regarding life as a soldier, share stories, and allow the kids to try on and learn about the equipment they use.


Musicians On Call delivers the healing power of music. By delivering live, in-room performances to patients undergoing treatment or unable to leave their beds, they add a dose of joy to life within a healthcare facility. Hunzinger’s Executive Vice President, Kevin O’Toole currently serves on the Board of Directors and is an avid volunteer himself. Since he became involved, Kevin has shared his musical talents to over 100+ patients at facilities around the country.


Hunzinger employees support Lad Lake of Wisconsin at their Annual Kettle Classic. Employees and their families take part in running, biking and walking for this event in support of Lad Lake’s mission of guiding growth and changing lives of more than 1,500 boys and girls ages 10-20 each year. In addition, Hunzinger employees annually support Lad Lake as part of their monthly Charity Jeans Day Program. Hunzinger’s Executive Vice President, Jim Hunzinger serves on the Board of Directors.


Inhabit is a Christian organization that brings restoration to hurting neighborhoods in Milwaukee. They buy foreclosed homes, fix them up, and then recruit individuals to intentionally live in these homes in order to serve the people of that neighborhood – pouring out their lives for the benefit of those around them. Through these relationships they tutor kids, mentor teens, hold Bible Clubs, art classes, music lessons and more. Hunzinger’s Executive Vice President, Jim Hunzinger serves on the Board of Directors and we annually support this organization in Charity Jeans donations and attendance at fundraising events.


Charity Jeans is a fundraising program by Hunzinger to raise money for local non-profit groups. Every month employees suggest worthy recipients and have the opportunity to donate funds to the selected charity. Hunzinger matches dollar for dollar all donations. In exchange for participating, employees are allowed to wear jeans on Mondays and Fridays.

The mission of Emma Loves Dogs is to provide financial assistance to organizations that share the same passion that Emma had for helping animals, such as police K9 units and non-kill animal shelters.

In response to God’s grace through Christ, Milwaukee Rescue Mission compassionately serves men, women and children who are homeless, hungry or poor to help them become whole in body, mind and spirit for the glory of God.

ABCD provides free, personalized information and one-to-one support to people affected by breast cancer – patients, families and friends.

Camp Hometown Heroes is a national free week-long overnight summer camp for children and siblings between the ages of seven to seventeen of fallen U.S. service members who died in any manner: combat, accident, illness or suicide.

NuGenesis Farm’s mission is to help you learn to prevent disease, and support your body through a chronic illness and prevent recurrence through the food you choose to eat.

The Sojourner Family Peace Center’s mission is to ensure the safety of victims of family violence and provide a pathway out of violence for victims and abusers through opportunities to make positive and lasting changes for themselves and their children.

The Wounded Warrior Project’s Mission is to foster the most successful, well-adjusted generation of wounded service members in our nation’s history.

The Lupus Foundation of America, Wisconsin Chapter is part of a national force devoted to solving the cruel mystery of lupus while providing caring support to those who suffer from its brutal impact.

The mission of the Elmbrook Humane Society is to promote the human-animal bond through adoption and education, to provide shelter to homeless animals, and to prevent animal cruelty and neglect.

Inhabit exists to bear witness to the Kingdom of God by recruiting Christians to intentionally live and serve in under-resourced Milwaukee neighborhoods.

Each year, Habitat for Humanity Affiliates in Wisconsin help several hundred low-income families in Wisconsin with safe, decent and affordable housing.

A Fisher House is a “home away from home” for military and veterans’ families to be close to a loved one during hospitalization for an illness, disease or injury.

The American Red Cross exists to provide compassionate care to those in need. A network of generous donors, volunteers and employees share a mission of preventing and relieving suffering.

Silver Spring Neighborhood Center is a nonprofit social services agency whose mission is to build a safer, stronger neighborhood and community.

The purpose of the athletic program at St. Joseph Catholic School is to teach the fundamentals of sports and develop Christian values while promoting a sense of community for parish members.

The Jewish Community Center is a diverse, inclusive community center that welcomes members and guests of all faiths. It is a place for the community to come together to discover physical, emotional, spiritual and social fulfillment.


  • Foundation for Children with Cancer
  • Salvation Army
  • Milwaukee Repertory Theater
  • Children’s Hospital
  • Team VeloCause
  • Belize Missionary
  • Basilica of St. Josaphat
  • Interfaith Airport Meditation Room of Milwaukee
  • 4H Club
  • Big Brothers Big Sisters of Metro Milwaukee
  • The Ronald McDonald House
  • The Make-A-Wish Foundation
  • The Hunger Task Force
  • Samaritan Purse Association
  • The American Heart Association
  • Hales Corners Veterans Memorial
  • Hunt of a Lifetime
  • The Leukemia & Lymphoma Society
  • Mount Arart Missionary Baptist
  • UPAF
  • LAD Lake
  • Westside Healthcare
  • Mount ARARAT Missionary Baptist Church
  • Susan G. Komen Foundation
  • Second Harvest of Wisconsin
  • American Red Cross
  • Toys for Tots
  • With Wings and a Halo


Hunzinger Construction Company passionately supports the mission and goals of the Make-A-Wish Foundation at both the local and national level.

Our history as an advocate for this very important cause spans many decades and we are proud to have granted over 100 wishes! John Hunzinger, President, has served on the Board of Directors and President for the Make-A-Wish Foundation of Wisconsin and has been actively involved in the mission since the 1990’s. Kevin O’Toole, Executive Vice President, has served on the Board of Directors of the Make-A-Wish Foundations of Central Florida, Wisconsin, Greater Los Angeles, Mid-Atlantic, Idaho, and Northern Nevada. He currently serves on the National Board of Directors of the Make-A-Wish Foundation of America. Here in Wisconsin our employees are active participants in many events that are organized in support of the Make-A-Wish Foundation’s mission.


Hunzinger’s management team and trade carpenters designed and developed a two-story camouflage themed fort with unique accessibility features to turn a little boy’s wish into a reality.


Each year, dozens of Hunzinger employees and their families participate in the annual 5k Run/Walk for Wishes hosted at Milwaukee’s lakefront. Together, our team has successfully raised funds and volunteered time that directly brightens the lives of Make-A-Wish recipients.


Hunzinger Construction’s 2019 Holiday Troop Shipment

Big thanks to the Delafield, WI Post Office for helping get Hunzinger’s latest troop shipment of 108 boxes weighing an average of 35 pounds each off to the 31 recipients stationed around the world. Hunzinger has now shipped 65 tons to our brave men and women in uniform. This incredible effort was made possible by our donors and volunteers.

Since early 2006, Hunzinger Construction has spearheaded an effort to send much needed supplies to our troops serving in Afghanistan and Iraq.

Engaging other companies, community members, local schools and service organizations, we have donated and shipped over 60 tons worth of items from our Hunzinger offices in Brookfield, WI. This program has grown from sending food, toiletries, books, greeting cards, gifts for local kids, and much needed socks and undergarments, to one soldier in the Army when we began in 2006, to sending quarterly shipments to well over 100 different military units. Donations for the Troop Care Package Program can be delivered or dropped off at: 21100 Enterprise Avenue Brookfield, WI 53045

Beginning in 1998, eight similar construction firms came together from Wisconsin, Indiana, Southern California, Colorado, Texas, Florida, Washington, Pennsylvania and Kansas, founding a National Peer Group with an initial goal of providing an in depth review of each others company operations, the sharing of best practices, and seeking continuous improvement. The early years of this effort achieved outstanding results as the sharing of information among the firms provided real opportunities for measurable process improvement. The evolution of the Peer Group experience was the formation of National Construction Solutions Group® (NCSG®) which today represents a consortium of national construction firms with combined annual revenues in excess of $1,000,000,000. NCSG® member firms participate in all construction market segments and offer a collective experience that is unparalleled in the industry. As an active member of NCSG®, each firm has access to similar state-of-the-art project historical cost data, delivery systems, means & methods utilized, preconstruction value and systems analysis, and project personnel that have specific expertise that can be relied on. When coupled with each firm’s experience and assigned project staff, we offer this value added unique perspective to the planning and execution of your project to ensure an efficient and cost effective delivery.

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