Management Team
Both in the office and the field, UMI represents the best and brightest HVAC industry talent. Our skill sets are both specialized and diversified, which means we can create innovative solutions for our clients. Our extensive network of field employees allows us to customize and deploy a team of virtually any size, to satisfy virtually any need. And our company-wide commitment to client care means each project will be handled with the highest level of professionalism and responsiveness.
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Jon Gundersen Jon has more than 30 years experience in the HVAC industry and focuses on estimating, sales and project management. Prior to founding UMI, he was the Regional Vice President in charge of Bay Area operations for a statewide HVAC company. Jon has worked with local and national HVAC companies where he served as estimator and project manager, senior project manager, sales engineer, and Vice President of Strategic Accounts, respectively. Jon holds a BS in Engineering Technology (AC&R) from California Polytechnic State University. He is a member of A.S.H.R.A.E., SMACNA, and SCVCA. |
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Tom Sosine Tom has nearly 40 years of construction and HVAC industry experience and focuses on business development and operations. Before forming UMI, Tom served on the Strategic Management team for a regional HVAC company where he managed the sheet metal and piping union labor forces. Prior experience includes EVP Construction Operations for a national company, where Tom also managed departments including HVAC Sheet Metal, Piping/Plumbing, Purchasing and Safety. Tom attended Diablo Valley and Laney Colleges and was an apprentice with Sheet Metal Local 104. He is a member of SMACNA, SCVCA and SWMIA Union Local 104. |
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Mark Yeager Mark has over 25 years experience in the Architectural Metals field. At UMI he focuses on business development, sales, project management, operations and estimating. Before joining UMI, Mark worked for local HVAC/ASM companies in capacities including General Manager, Project Manager, Purchasing, Senior Project Manager, Director and Sheet Metal Specialist with Sheet Metal Local 104. Mark is a graduate of Leland High School and has attended West Valley College. |
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Blaine Flickner Blaine has more than 23 years experience in the HVAC industry and focuses on Engineering, Estimating, and project management. Blaine has been a registered professional engineer for 10 years. Blaine has worked with local and national HVAC companies where he served as engineer, estimator, project manager, and sales engineer. Blaine holds a BS in Engineering Technology (AC&R) from California Polytechnic State University |
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Zack Portera Zack has more than 15 years in the commercial/industrial plumbing field specializing in estimating, sales and the managing of projects Before United Mechanical, Zack began his career at Metro plumbing in 1996. In 2000 Zack joined the estimating and project managing. He quickly acquainted himself with the protocol of design work, plan check, the permit stage to the completion of the projects. In December of 2005, Zack received his C-36 contractor’s license. Zack is very knowledgeable of Auto CAD and is able to provide the drawings for all requests. |





