President and CEO
People
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Steve S. Krawczynski, P.E., MBA, LEED AP CEM - President and CEO
Overview
As President and CEO, Mr. Krawczynski maintains day-to-day oversight of van Zelm’s project management teams, production management, IT, and technical departments. Steve has been with van Zelm since 1990, and was named Principal in 1995. He specializes in the design of mechanical systems for commercial and institutional projects, and has over twenty years of experience with academic, cultural, healthcare, industrial and commercial facilities.
A LEED certified professional and Certified Energy Manager, Steve is proficient in Sustainable Design principles and practices. He has previously served as an Adjunct Professor at the University of Hartford College of Engineering Technology and Architecture.
Mr. Krawczynski has PIC involvements and provides design review and quality assurance to project development. He ensures that the best technical and administrative resources of the firm are made available to the project and reviews the project during the development stage and at benchmark progress points to ensure that the design meets the requirements of the client.
Education
Mr. Krawczynski earned a B.S.M.E. from the Milwaukee School of Engineering,
Milwaukee, Wisconsin and an M.B.A. degree from Rensselaer Polytechnic Institute’s
School of Engineering in Troy, New York.
Professional
Registration Mr. Krawczynski holds licenses as a Professional Engineer, in many states. He is a LEED AP – certified professional, registered with NCEES, and is also a Certified Energy Manager (CEM).
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David W. Madigan, P.E., LEED AP - Senior Vice President and Treasurer
Overview
Dave Madigan is Senior Vice President and Treasurer, with significant expertise in the design of high efficiency building systems for the academic sector. A LEED Accredited Professional, Dave is a frequent speaker on sustainable design.
Dave’s areas of specialty center on college and university campus development, and high performance building designs and renovations.
A LEED Accredited Professional and frequent speaker on sustainable design, Dave has worked on numerous projects with sustainable design objectives, of particular note is Dave’s experience in the design and planning of high efficiency, sustainable laboratory facilities and the design and implementation of campus energy conservation measures. Some of Dave’s areas of specialty are college and university campus development, high performance laboratory design and cogeneration systems.
Education
Dave received his B.C.E. in Civil Engineering from Villanova University in 1981, and an M.S. in Energy Engineering from the University of Colorado in 1984.
Professional Registration
Mr. Madigan holds licenses as a Professional Engineer in the States of CT, NJ, MA, RI, OH, VT, MI, ME, NH, and VA. He is also a LEED AP certified professional.
Industry Associations
Mr. Madigan is a member of i2SL – International Institute for Sustainable Laboratories, AEE – American Society of Energy Engineers, ASHRAE – American Society of Heating, Refrigerating and Air-Conditioning Engineers, NESEA – The Northeast Sustainable Energy Association, USGBC – U.S. Green Building Council, APPA – Association of Higher Education Facilities Professionals and ASES – American Solar Energy Society.
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Edward D. Allen, P.E., LEED AP - Senior Vice President and Secretary
Overview
Mr. Allen is Senior Vice President and Secretary, serving in this role since 2004. In addition to select project management and design activities, he serves the firm as Principal-In-Charge of Electrical Engineering Services, with particular expertise in the academic sector.
Ed has a broad background in engineering design and construction practices, with experience in both electrical and mechanical engineering design, application and analysis. Prior to joining the staff at van Zelm, Ed was the Owner and President of a local consulting engineering firm.
Ed is a LEED Accredited Professional and has been a presenter to industry groups and clients on the subject of sustainable design and the LEED process for a number of years.
Developing sustainable, high performance buildings utilizing an integrated design approach has been a primary focus of Ed’s work for many years. He has been instrumental in the successful delivery of projects that have achieved LEED Platinum and beyond Platinum recognition.
Ed’s expertise includes design of mission critical systems, including data centers, call centers and infrastructure for the corporate, academic, healthcare and pharmaceutical sectors, where he has demonstrated a unique ability to immerse himself in the requirements of clients whose projects are conducted under occupied conditions and in which critical processes are ongoing.
Education
Mr. Allen holds a B.S. degree from Lehigh University in Bethlehem, PA
Professional Registration
Mr. Allen holds licenses as a Professional Engineer in many states. He is a LEED AP – certified professional since 2001.
Ed holds active memberships in: IEEE, BICSI, NFPA, NESEA, USGBC, CTGBC, and IESNA.
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Thomas A. Wunder - Vice President
Overview
Tom is Vice President for the Firm. Prior to his current position, he served as Chief Executive Officer from 2006-2019. Tom joined van Zelm in 1992, and was named Principal and C.O.O. in 2000. Tom has over thirty years of experience in the built environment. He is a specialist in the design of systems and infrastructure for the corporate and pharmaceutical sectors, where he has demonstrated a unique ability to immerse himself in the requirements of clients whose projects are conducted under occupied conditions and in which critical corporate processes are ongoing.
Tom has a broad background in engineering design and construction practices. He is experienced in mechanical engineering design, application and analysis. Specific areas of experience include: Code analysis, facility and campus master planning, multi-discipline design integration, energy analysis, and construction management.
Education
Mr. Wunder holds an A.S. degree from Pennsylvania Institute of Technology.
Professional Associations
Mr. Wunder is a member of ISPE – International Society for Pharmaceutical Engineering.
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R. Scott Madigan, P.E. - Vice President & Senior Team Leader
Overview
Scott Madigan has more than 30 years of experience in mechanical engineering systems design for the built environment. As both a technical design leader and project manager, he has extensive experience overseeing teams managing intricate and complex projects, both new and renovated, for higher education, academic, office, commercial and industrial facilities. Energy efficiency and sustainable systems design features are incorporated into all of Scott’s projects, including LEED, Living Building Challenge (LBC) and Passive House certifications.
His team designed the recently completed 544,000 s.f. Harvard University Science Engineering Center in Allston, MA which earned LEED Platinum and LBC petal certifications. In addition, the team designed the Wesleyan Science Building currently under construction.
Scott holds a B.S. in Mechanical Engineering degree from Villanova University. He is licensed as a Professional Engineer in multiple states and is a member of ASHRAE and the U.S. Green Building Council.
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Steve E. Perry, P.E. - Vice President & Senior Team Leader
Overview
Steve has more than 25 years of experience as lead electrical engineer and manages technically challenging building projects and infrastructure across a broad spectrum of market types, including healthcare, industrial, academic, historic preservation and adaptive reuse, schools, commercial office, and recreational facilities. These comprise of new facilities, additions, and interior renovations of various scales for clients such as the Department of Veterans Affairs, University of Massachusetts Memorial Medical Center, Hartford Hospital, Pratt & Whitney, and University of New Haven.
With extensive experience as both a technical electrical design leader and a project manager, Steve has significant ability in leveraging the capabilities of his team to imagine innovative design solutions to solve complex problems. Energy efficiency and sustainable systems design features are incorporated into all of Steve’s projects.
Steve holds a B.S. degree in Electrical Engineering Technology from the University of Connecticut. He holds a professional engineering license in five states and is a member of the Illuminating Engineering Society (IES), the New England Healthcare Engineering Society (NEHES), and the U.S. Green Building Council.
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Eric J. Fontaine, P.E., LEED AP BD+C - Vice President & Senior Team Leader
Overview
Eric’s career spans 20 years of experience in the design of award-winning mechanical engineering systems with a focus on academic, corporate office, research facilities and laboratories, and power plants. With substantial experience as both a technical design leader and a project manager, he is intimately involved with project planning and design of projects from conception through completion including interdisciplinary coordination of deliverables and construction administration. Eric has a deep commitment towards sustainable design, having worked on many LEED Platinum projects during his career including Dartmouth College’s Arthur Irving Institute for Energy and Society and the Class of 1982 Engineering and Computer Science Center. He ensures that the best technical resources of his team are made available to the clients they serve.
Eric holds a B.S. in Mechanical Engineering degree from the University of Hartford in Hartford Connecticut. He is a licensed professional engineer in multiple states and is a LEED Accredited Professional. Eric is very active in ASHRAE, on the local, regional and national levels. He was a past president of the Connecticut Chapter, currently serving on its Board of Governors. He is also a member of the U.S. Green Building Council (USGBC). Eric has presented at numerous conferences such as Tradeline Research Facilities, ASHRAE and ABX as well as authored technical articles on sustainability.
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Beatrice C. Chipelo - Associate & Director of Finance
Bea is an Associate and Director of Finance at van Zelm. She has over 15 years of experience and in providing accounting and consulting services for the professional services industry. Ms. Chipelo is responsible for managing the Firm’s Finance and Accounting Department. Her additional expertise includes Financial Administration, Records Management & Reporting; Budget Development & Maintenance; State & Federal Tax Compliance; and Vendor Contract Management. Bea earned a Bachelor of Science in Accounting at Post University, where she currently serves as Treasurer on the Post College Foundation Board. Ms. Chipelo also serves as a volunteer for a number of area non-profit organizations.
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Patricia R. Bilotto - Associate & Director, Marketing & Business Development
Overview
Patty Bilotto is Associate & Director, Marketing & Business Development for van Zelm Heywood Shadford Inc., headquartered in Connecticut. Nationally renowned for the design of cutting-edge, highly sustainable mechanical and electrical building systems, van Zelm has regional offices in Massachusetts & North Carolina.
Patty has over 25 years in senior leadership roles for both professional services and product marketing. She has led significant marketing and business development efforts for regional and national design and construction firms.
As Associate, Marketing & Business Development at van Zelm Engineers, Patty is engaged in executing multi-faceted marketing and business development initiatives, nurturing and maintaining meaningful client and industry relationships, building brand awareness, placing digital and print media, and planning events.
Education
Patty earned a B.S. in Business Administration from the University of New Haven. She is a Certified Marketing Professional Services Professional (CPSM).
Industry Leadership
Patty has a wealth of experience as a long-time volunteer and board member for non-profit organizations. Actively involved with PWC CT since 2008, she has served as president since 2020. She is a four-term past president of the Society for Marketing Professional Services, Connecticut Chapter, and served as SMPS National’s Chair of its Striving for Excellence Committee. An active member of the Association of Medical Facilities Professionals New York City Chapter (AMFP NYC) serving on the public relations committee, Patty is also a member of the New England Healthcare Engineers Society (NEHES) and the State of Connecticut/DAS Industry Advisory Committee.
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Craig R. Boman - Team Leader - Construction Administration
Overview
Mr. Boman has nearly 30 years of experience in construction of a broad spectrum of facilities, including utility and power stations, corporate and institutional facilities, college and university campuses, hospital and healthcare, as well as research and development facilities. He is well versed in the discipline of an orderly construction program and is proficient in code interpretation and conformance. Additionally, he is experienced in construction that incorporates green design and LEED principles, inclusive of the deployment and commissioning of complex energy infrastructure such as radiant heating and cooling, passive and active solar energy systems, and displacement ventilation. In a previous assignment Mr. Boman served with Stone & Webster Engineering in large power field engineering and construction administration for fossil and nuclear power projects. Mr. Boman attended the University of Wisconsin at Green Bay, where he studied Mechanical Engineering.
Education
Mr. Boman attended the University of Wisconsin at Green Bay, where he studied Mechanical Engineering.
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William J. Donald, CBCP - Team Leader - Commissioning Services
Overview
Mr. Donald has been with van Zelm since, 1998, becoming Manager of Commissioning Services in 2008. He has extensive experience in building facilities management and building automation systems. Prior to joining van Zelm, Bill worked in the healthcare sector, serving as a project manager and director of engineering. Bill provides commissioning, project management and field inspection for various types of projects. He has extensive experience in the operation and troubleshooting of HVAC systems, Building Management (BMS) and lighting control systems. Direct experience in monitoring and analyzing system operation using BMS trending and stand-alone data logging equipment. Excellent verbal and writing communication skills, highly organized and able to work with both management and trade contractors.
Education
Mr. Donald attended Springfield Technical Community College in Springfield, Massachusetts and the Technical Careers Institute in Windsor, Connecticut.
Bill teaches classes in commissioning and retro commissioning through the Construction Institute Center for Professional Development at the University of Hartford.
Professional Registration
Mr. Donald holds a Certified Building Commissioning Professional Certification (CBCP) and an Existing Building Commissioning Professional Certification (EBCP) by AEE.
Industry Associations
Mr. Donald is a member of ASHRAE – American Society of Heating, Refrigerating and Air-Conditioning Engineers, the Association of Energy Engineers (AEE) and is a Certified Building Commissioning Professional (CBCP).
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Adam J. Ducki - Team Leader
Overview
Mr. Ducki is experienced in the design of mechanical engineering systems for academic, corporate, commercial, laboratories, and college/university facilities. His responsibilities include the study and design of various infrastructure systems involving ventilation, heating, air conditioning, plumbing, and fire protection systems as well as Direct Digital Control and pneumatic control systems. He is responsible for the conceptual development of mechanical systems and has prepared drawings and specifications, selected equipment, reviewed shop drawings, and prepared construction cost estimates. Mr. Ducki’s recent design projects include the Hartford Insurance Tower Consolidation, United Illuminating new Corporate Office and Operations Center, Trinity College Renovations and Upgrades, Pfizer Renovation, and Upgrades, Amity High School, and Ethel Walker Centennial Hall. Many of these buildings were designed utilizing sustainable design principles and practices.
Education
Mr. Ducki holds a B.S. in Mechanical Engineering from the University of Hartford.
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Scott A. Martin, PE, LEED AP - Team Leader, NC Office
Overview
Scott has over 25 years of experience in the design & analysis of HVAC systems in the built environment. His expertise includes designs for academic, office, industrial, commercial and laboratory facilities. Projects include complex HVAC systems for renovation, retrofit and new construction within complicated spaces such as arenas, ice rink facilities, natatoriums, clean room environments and laboratories. Scott has considerable involvement with projects that include sustainable design objectives such as high-efficiency laboratories and campus energy conservation for such clients as Princeton University, Yale University, University of Connecticut, University of Massachusetts, The Lawrenceville School and Colby College.
Education
Scott holds an B.S. degree in Mechanical Engineering from the University of Massachusetts. He has additional training in project management and leadership; he holds a Professional Engineer license in multiple states and is a LEED Accredited Professional.
Industry Associations
He is and has been very active in ASHRAE, on the local, regional and national levels. Currently serving on the Society Honors and Awards Committee and technical committees for Geothermal Heat Pump and Energy Recovery Applications, Clean Spaces, and Building Environmental Impacts and Sustainability.
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Jean Zangor, PE, LEED AP - Senior Technical Associate
Overview
Jean has over 37 years of experience designing and analyzing HVAC systems, including 20 years at van Zelm. His dedication, strong communication, and proactive problem-solving set a high standard for the team.
As a Senior Technical Associate, he has led complex HVAC designs for renovations, retrofits, and new construction in demanding environments like clean rooms and laboratories. Specializing in sustainable design, he focuses on high-efficiency labs and campus energy conservation.
Jean has overseen equipment sizing, developed design concepts, and implemented system controls for research, teaching, and specialized labs. He also supports project startup and commissioning by evaluating and troubleshooting mechanical systems.
Jean has mentored junior engineering staff, providing guidance based on project needs.
Education
He holds an NBI-Air Balancing Certification and a BS in Automotive Engineering from Transylvania University of Brasov, Romania, with additional training in chiller plant design, HVAC analysis, and air balancing.
Industry Associations
ASHRAE – the American Society of Heating, Refrigerating and Air-Conditioning Engineers