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Meet the People of Immel Construction

An Atmosphere of Teamwork

Immel Construction strives to create an atmosphere of teamwork and cooperation among all parties involved in a project. We believe in making design and construction a positive experience. We also believe that all parties involved in a project must know exactly what they need to do and when they must do it.


Paul Martzke_Website

Paul Martzke, AIA, LEED AP, President

With more than 25 years' experience in the industry, Paul has built a diverse portfolio of projects. As President of Immel Construction, he continues to remain hands on throughout each department. His responsibilities include oversight of the company operations including business development, estimating, project management, public relations, and marketing. Paul is a licensed Architect in Wisconsin and is incredibly active in the community from serving on the Board of Directors for AGC Wisconsin to being a member of the Rotary Club of Green Bay. Paul enjoys all things winter and never misses a chance to go snowmobiling and ice fishing with his family.


Alex Santos_Website1

Alex Santos,
LEED AP, Executive Vice President

Alex brings over 30 years of experience to Immel Construction’s leadership team. Through his background in project management, Alex has years of experience working on large-scale projects in the retail, education, healthcare, municipal, and commercial industries.  Alex directs and has full oversight of our project management teams along with overall administrative and technical management on construction projects from the pre-construction phase through final acceptance by the client.  He excels in project scheduling, quality control, and securing on-time completion of our work. Alex is an avid golfer and even coaches a local high school girls’ golf team.


Steve Hucek_Website

Steve Hucek, Vice President, Estimating

Steve has been with Immel Construction for over 15 years and has nearly 30 years of industry experience. He has vast knowledge in the estimating process on multi-million dollar projects in the retail, education, healthcare, municipal, and commercial sectors.  His efforts directing our estimating team will ensure that the scope of work for every project is clearly defined and within budget, providing our clients with multiple cost options to adhere to their unique needs. Steve enjoys time spent with his daughter on his boat, fishing in Green Bay and on Lake Michigan.


Brian Wetzel_Website

Brian Wetzel, Vice President, Operations

Brian's background includes over 15 years of experience in risk management and compliance, 10 of which have been spent with Immel Construction. In his role as Vice President, Operations, his primary responsibilities include ensuring Immel Construction’s efforts in safety and worker compliance are being completed to the company’s high standards, our client’s satisfaction, and the requirements of regulatory agencies. Brian loves spending time outdoors from camping with his family to hunting and fishing.


Steve Sipiorski_Website

Steve Sipiorski, Chief Financial Officer

With over 40 years of accounting experience, 8 years spent as a controller for a construction company and 17 years with Immel Construction, Steve brings extensive experience to our team. He is responsible for all the financial management of the company and works closely with the rest of the leadership team to establish the company’s financial objectives. Steve is responsible for the financial planning, management of financial risks, record-keeping, financial reporting, and analysis of data to make financial predictions for the company. Outside of work, you can see Steve bicycling along local roads and spending time with his grandchildren. 

Paul Sobieck_website

Paul Sobieck, General Superintendent

Paul, Immel Construction's General Superintendent, has an impressive 30 years in the construction industry and has a broad base of construction experience covering retail, commercial, and industrial industries. He provides management and coordination of all field operations including supervision and placement of field personnel, materials, and equipment. Paul loves taking his boat out on local lakes to fish and going on hiking trips with his wife and three children.