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Executive Management Team

The HSC Executive Team’s ultimate goal is absolute client success; this philosophy starts with top management and filters through all levels of the organization.

Jim VinerJames Viner
President & CEO

As President & CEO, Jim Viner guides HSC’s strategic initiatives while collaborating closely with the Executive Team as they manage daily operations. He ensures that clients receive quality service through The HSC Way while also forging partnerships with new prospects.

Jim operates with a hands-on approach and connects directly with owners is important to help achieve their vision. He firmly believes that a client’s success must come first, and only then will HSC’s success follow. This philosophy has proven to be the cornerstone to HSC’s repeat business.

Knowing that great employees are key to a thriving company, Jim employs only the best in the business. HSC’s experts have the necessary balance of technical expertise and emotional intelligence. Jim is committed to continued staff development through company-wide training programs and targeted skills training.

Jim has been employed at HSC Builders since 1998 with over 30 years’ experience in healthcare, higher education, and life sciences construction management. Jim holds a Bachelor of Science degree from Lafayette College.

mark heim CEOMark Heim, P.E.
Chairman of Board

As Chairman of Board, Mark Heim, P.E., acts in an advisory role to HSC by offering a prospective on strategic initiatives. Together with Jim Viner, Mark has helped the firm embark on significant business endeavors. The collaboration between the two remains an integral part of HSC’s future.

Mark began his career managing heavy civil projects throughout the United States before joining HSC in 1989. After serving as President for 11 years, Mark became Chief Executive Officer in 2011 and then advanced to Chairman of Board in 2017.

Mark holds a Bachelor of Science degree in Construction Engineering from Spring Garden College and is a registered engineer in Pennsylvania, North Carolina and Maine. Mark was previously named “Executive of the Year” by Construction Financial Management Association of Philadelphia and was at the helm when HSC was recognized three times as the Construction Manager of the Year by the Subcontractors Association of Delaware Valley.

Vikki Grinnan
Chief Financial Officer

For the past 32 years, Vikki Grinnan has served in many financial roles for both small and mid-sized construction firms including Director of Project Accounting, Controller, and Chief Financial Officer. She develops and manages internal and financial controls while overseeing all project accounting and cost control. A priority to her is staying innovative by continuously adapting the financial department’s procedures and tools in order to stay current within the industry.

As Chief Financial Officer, Vikki provides leadership and oversight of the Construction Accounting Department, Human Resources Department, and all finance operations of the company. Her construction industry experience has allowed her to transition the company’s basic accounting system to a wholly integrated business and financial information system.

Vikki served as former Vice President of the Philadelphia Chapter of the Construction Financial Managers Association (CFMA). While in that role, she also served as Chairman of the Programming Committee.

Vikki is a graduate of Rosemont College where she earned a Bachelor of Business Management degree.

Brian Hammond
Director of Construction

Brian has been in the construction industry since 1993. He received his Bachelor of Science degree in Construction Management from the University of Florida and is a LEED-accredited professional. He has successfully managed new and complex renovation projects ranging from $1 million to $200 million.

As the Director of Construction, Brian oversees project management and all field operations. He is a key team member during the early project planning stages through bid/award and is actively involved on the jobsite throughout construction. Brian’s effective management of the team enables the projects to run smoothly. With a proven track record, Brian knows what it takes to guide a successful project—excellent communication with the client and subs ensures that projects meet both schedules and budgets; he consistently exceeds the client’s goals.

Brian Ford
Director of Preconstruction

Brian Ford’s construction career began in 1988 working on many technically complex facilities in the healthcare industry along with bio-pharma such as R&D labs, process installations and clean rooms. In his role as Director of Preconstruction, he manages design review, project budgets and value engineering services. Additionally, he has extensive experience in estimating and cost control ranging from conceptual estimates and cost model preparation to quantity take-offs, bid package estimates and GMP estimates.

Brian knows the pulse of the marketplace and is adaptable to its changes. This trait helps him prepare life cycle cost studies, value engineering studies and document reviews for constructability giving the client the best path to fulfill their vision. Brian knows that the success of a project is built on first clearly understanding the client’s needs in terms of budget and schedule. He works closely with the client to learn their unique set of goals and uncovers what they deem as a successful project.

Brian has a Bachelor of Science degree in Construction Management from Spring Garden College.

David LambertsenDavid Lambertsen
Director of Business Development

With a broad understanding of corporations and institutions, David works closely with HSC clients in the planning and development of projects that will meet their business goals and facility needs. He has extensive experience with client relations and project development for pharmaceutical, biotechnology, healthcare, higher education, and corporate clients in the Mid-Atlantic region.

David guides HSC in selecting the right team to work with our clients. Often, this involves his knowledge of our design partners’ abilities, as well as the personalities and talents of our project management staff. During the course of a project, he monitors the effectiveness of our project team and maintains our channel of communication at an executive level.

David has a Bachelor of Arts degree from Cornell University and an MBA from The Wharton School of the University of Pennsylvania.

Bill GravesBill Graves
Project Director

As Project Director, Bill has more than 25 years of experience managing complex renovation and new construction projects for academic facilities along with the challenging healthcare and high-end corporate industry.

Through his proven leadership, Bill successfully fosters collaborative working relationships among the owner, design team, and subcontractors. He begins by carefully listening to all stakeholders to form a clear picture of client’s goals. As the project moves forward, he then consistently provides thorough, timely communication throughout the entire process. With these teambuilding efforts and by leading all his projects to success, Bill has built long lasting relationships. Simply put, clients trust him.

Bill manages the project schedule and budget closely with the client’s best interests in mind. Of keen importance to him is ensuring the safest possible site for staff, students, visitors, and workforce so that everyone goes home safely each day. Ultimately, he delivers the highest quality space possible, fulfilling the client’s vision.

Ryan Kairis, CBCP
Life Sciences Group Manager

Ryan Kairis is HSC Builders’ biotech-pharmaceutical resident expert with over 18 years of construction management experience. He is closely involved in all life sciences preconstruction and construction services. Additional experience includes medical device, high rise and higher education projects.

Ryan’s clients include small startup organizations to large corporate entities.  Ryan’s project experience ranges from $100,000 to $150 million. He has significant experience with research and development facilities, vivaria, central utility plants, GMP manufacturing & packaging, GMP warehousing and biopharmaceutical pilot plants. Ryan’s understanding of how these types of facilities operate is invaluable to his clients. Further, he is always focused on his clients User Defined Requirements for any given project. It is this awareness and focus that ensures his client’s success.

Supplementing this background, he also has significant experience with developing and executing commissioning master plans, pre-functional test protocols and functional test protocols. With any technical project, it is imperative to have a project team member that can understand how systems are intended to function by design. Ryan’s understanding of these building systems brings tremendous value to his clients throughout the project life cycle. In preconstruction, Ryan can evaluate building systems and assist in developing and purchasing system-test packages that meet the owner’s commissioning goals. During construction, Ryan acts as a liaison between the owner, engineer, commissioning agent and subcontractor teams to ensure the commissioning plan is being executed properly. During equipment startup, Ryan oversees the functional testing to provide expertise and guidance to ensure test protocols are executed properly. Often this test planning and execution guidance that Ryan provides has proven invaluable in critical facilities where reliable equipment operation is imperative.

Ryan achieved the Certified Building Commissioning Professional (CBCP) accreditation. His education includes a B.S. in Civil Engineering from Drexel University. Ryan is a LEED Green Associate and member of the United States Green Building Council (USGBC). Additionally, he is a member of the International Society of Pharmaceutical Engineers (ISPE) and serves on the ISPE marketing committee.

Kim Esposito, CRIS
Risk & Safety Manager

As Safety & Risk Manager, Kim Esposito utilizes her diverse background in overseeing the risk management function. She has expertise in the areas of legal, insurance, financial and safety necessary when considering the many facets of risk. Her responsibilities include Jobsite Safety, Property & Casualty, Contractual Risk Transfer, OSHA Guidelines, Strategic Planning, Indemnification, Contract Negotiations and Claims Management.

Kim proactively works with each project team to develop a risk profile for each project which ensures an OSHA-compliant worksite, identifies specific training needs, validates compliance with owner’s contractual requirements, and fully integrates with a client’s health & safety programs.

Kim’s education and affiliation includes a B.S. degree in Accounting and Mid Atlantic Construction Safety Council membership. She is an accredited Construction Risk and Insurance Specialist (CRIS) maintaining this designation through required annual courses. Additionally, she has a Contract Management certificate from Villanova University, OHSA 30 training and First Aid CPR/AED.

Wendy WarkWendy Wark, CPSM
Marketing Manager

Wendy participates in HSC’s strategic planning and supports corporate goals through branding and tactical project execution. Her background spans 30 years of marketing achievement with both service-oriented and product-manufacturing firms.

Wendy has been trained in the lean construction philosophy and serves on HSC’s Lean Committee which guides employees to learn and apply the lean principles. Her communication skills include the innate ability to take complex ideas and distill them into a succinct message. In developing a highly effective department, she launched a new CRM database improving both the collection and maintenance of vital data. Other personal qualities include her care for both internal and external customers; she believes that a team mentality is closely tied to successful outcomes.

Wendy has a Bachelor of Business Administration in Marketing from Temple University and is a member of the Society for Marketing Professional Services. She is a Certified Professional Services Marketer, an accreditation distinct to the A/E/C industry.