President and CEO

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).

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.

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.

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.

R. Scott Madigan, P.E. - Senior Associate & Senior Team Leader
Overview
Mr. Madigan has more than thirty years of experience in engineering systems design for the built environment. Scott’s project management capabilities include new design, expansion and renovation of healthcare, college/university, academic, office, and commercial & industrial facilities. Energy efficiency and sustainable systems design features are incorporated into all of Scott’s projects, including LEED, LBC and Passive House certifications. He ensures that the best technical and administrative resources of his team are made available to his project and reviews projects during the development stage and at benchmark progress points to ensure that the design meets the requirements of the client. Mr. Madigan’s oversight includes the preparation of studies, design drawings, and specifications, as well as design review and contract administration. Mr. Madigan also has responsibility for the management of the production team’s preparation of Mechanical and Electrical Contract Documents, including personnel and project scheduling, marketing, financials and billings. Scott also serves as van Zelm’s Mechanical Department Chair, providing mechanical systems design review and quality assurance to project development for the entire firm. Scott holds a B.S.M.E. degree from Villanova University. He is licensed as a Professional Engineer in CT, MA and NY.
Education
Mr. Madigan holds a B.S.M.E. degree from Villanova University.
Professional Registration
Mr. Madigan holds licenses as a Professional Engineer in CT, MA and NY.
Industry Associations
Mr. Madigan is a member of ASHRAE – American Society of Heating, Refrigerating

Steve E. Perry, P.E. - Senior Associate & Team Leader
Overview
Mr. Perry has more than twenty-five years of experience in engineering systems design for the built environment. Mr. Perry’s project management experience includes new design, expansion and renovation across a broad spectrum of building facilities and campus infrastructure including commercial, industrial, academic, historic preservation and adaptive reuse, schools, healthcare, office, manufacturing and recreational facilities. Energy efficiency and sustainable systems design features are incorporated into all of Steve’s projects. He ensures that the best technical and administrative resources of his team are made available to his projects and performs reviews during the development stage and at benchmark progress points to ensure that designs meet the requirements of the client.
Mr. Perry is experienced in medium and low voltage electrical distribution power generation, electrical switchgears, building illumination and wiring; street, parking lot, and sports field illumination systems, fire alarm and communication systems, public address systems, emergency lighting and lightning protection systems.
Mr. Perry’s oversight includes the preparation of studies, design drawings, and specifications, as well as design review and contract administration. Mr. Perry also has responsibility for the management of the production team’s preparation of Mechanical and Electrical Contract Documents, including personnel and project scheduling, marketing, financials and billings.
Education
Mr. Perry holds a B.S. degree in Electrical Engineering Technology from the University of Connecticut.
Professional Registration
Mr. Perry holds a Professional Engineer license in the State of CT.
Industry Associations
Mr. Perry is currently a member of IES – Illuminating Engineering Society.

Beatrice C. Chipelo - Associate & Director of Finance


F. Bruce Hartman - Associate & Senior Team Leader
Overview
Mr. Hartman is a team leader with 29 years of experience in building systems. Bruce’s extensive project management experience includes new design, expansion and renovation for all types of facilities including colleges & universities, museums, healthcare, corporate office, manufacturing, research facilities & laboratories, natatoriums, ice arenas and intermodal transportation. He is responsible for meeting schedules, maintaining budgets and ensuring that the best technical resource of the firm is made available to the client.
Mr. Hartman’s experience includes preparation of studies, design drawings, specifications, and cost estimates as well as design review and contract administration. As a team leader, Mr. Hartman has responsibility for the management of the production teams’ preparation of mechanical and electrical contract documents with emphasis on personnel and project scheduling, marketing, financials and billings. Additional responsibilities include standards, procedures, quality control and contract administration.
Education
Mr. Hartman holds a B.S.B.M. degree from Albertus Magnus College in New Haven, Connecticut and an A.S.M.E. degree from Hartford State Technical College in Hartford, Connecticut.
Industry Associations
Mr. Hartman is a member of ASHRAE – American Society of Heating, Refrigerating and Air-Conditioning Engineers.

Eric J. Fontaine, P.E., LEED AP BD+C - Associate / Team Leader
Overview
Mr. Fontaine has extensive experience in the design of building HVAC systems. Eric’s design and project management experience includes new construction, expansion and renovation for all types of facilities including colleges & universities, corporate office, manufacturing, research facilities & laboratories, and power plants. He is responsible for meeting schedules, maintaining budgets and ensuring that the best technical resource of the firm is made available to the client.
Mr. Fontaine’s experience includes preparation of studies, design drawings, specifications, and cost estimates as well as design review and contract administration. As a project manager, Mr. Fontaine ensures that the management of the production teams’ preparation of mechanical and electrical contract documents is done with an emphasis on personnel and project scheduling, marketing, financials and billings. Additional responsibilities include standards, procedures, quality control and contract administration.
Education
Mr. Fontaine holds a B.S.M.E. degree from the University of Hartford in Hartford Connecticut.
Professional Registration
Mr. Fontaine holds a license as a Professional Engineer in CT.
Industry Associations
Mr. Fontaine is currently on the Board of Governors & a Chair of the Sustainability Committee of ASHRAE – American Society of Heating, Refrigerating and Air-Conditioning Engineers. He is also a member of the U.S. Green Building Council (USGBC).

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.

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.

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).

Tanay R. Bapat, C.E.M., LEED AP, CQPA - Team Leader - Energy Consulting
Overview
Mr. Bapat manages van Zelm’s energy modeling and renewable energy consulting group. He has extensive experience in energy engineering, commissioning, retrocommissioning, facilities management, HVAC systems analysis, green building design, renewable systems design, financial analysis, energy sourcing and building energy modeling.
Tanay is an expert in energy modeling. He is proficient in many modeling & analysis software packages including: eQUEST, Trane Trace, DesignBuilder, Therm, Energy Plus and Elite. Tanay is a LEED accredited professional. He has directed efforts on numerous projects leading to certification at Gold and Platinum levels. He also consults on the DOE EnergyStar Program and has led many property owners through this certification process.
Prior to joining van Zelm, Mr. Bapat served as a Project Development Engineer for a major energy services group. He was responsible for the evaluation and design of large scale renewable energy systems, primarily focusing on photo voltaic and solar thermal systems. Mr. Bapat also managed several guaranteed energy savings contracts involving both conventional and renewable energy systems.
Additional experience includes energy efficiency and conservation, master plans, process optimization for medium and large manufacturing facilities, renewable energy systems including biomass, solar, wind, bio-fuels, comprehensive energy audits, utility billing analysis, and securing financial incentives.
Education
Mr. Bapat holds a B.S. degree in Mechanical Engineering from the University of Mumbai. He holds a Master’s degree in Industrial Engineering and Management from Oklahoma State University and a Master of Business Administration from the University of Connecticut.
Professional Registration
Mr. Bapat is a LEED Accredited Professional and a Certified Energy Manager. He is a member of the US Green Building Council and the Association of Energy Engineers.

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.

Robert M. DeMorro, Jr., PE, LEED AP - Team Leader
Overview
Bob has 30 years of extensive experience with HVAC system design, life cycle cost analysis, code reviews, contract administration, engineering studies and project management. Projects range from small tenant fitouts to large new construction projects in all type of facilities for educational, corporate office, manufacturing, healthcare, retail and governmental clients.
Bob also has experience working with both manufacturers’ representatives and manufacturers of HVAC systems and equipment. In these roles his responsibilities ranged from providing application support and technical guidance to consulting engineers to troubleshooting system performance issues during installation and start-up. Some of the systems and equipment he has been involved with include building automation systems, custom air handling equipment, large tonnage chillers, energy recovery ventilators and variable frequency drives.
Bob is responsible for assuring our clients’ needs and expectations are met. He oversees project planning, organization and control, technical quality, and leadership of team members and is responsible for cost control, project and manpower scheduling and general management of all his team members.
Education
Bob holds both a B.S. degree in Mechanical/Materials Engineering and an MBA in Management Science from the University of Connecticut.
PROFESSIONAL REGISTRATION
Bob is a professional engineer licensed in the state of Connecticut and a LEED AP – accredited professional.
INDUSTRY ASSOCIATION
Bob is a member of ASHRAE – American Society of Heating, Refrigeration, Air-Conditioning Engineering.