Executive Leadership
Industry Leaders & Strategic Advisors
Driven by decades of combined knowledge, our leadership and advisors navigate tomorrow’s cleanroom challenges with proven expertise.
Glenn VandeGrift
President & Founder
- 20 Years’ Experience
- ENR Top 20 Under 40 2023
George Wiker
CEO & Founder
- 30 Years’ Experience
- 3M SF Designed
- 45+ Cell and Gene Facilities Designed
Brian Bennett
Executive Vice President
- 35 Years’ Experience
- 4K Projects Developed
- 1.6M SF of Cleanrooms Built
Nick Vermont
Chief Operating Officer
- 20 Years’ Experience
- 10K Projects Estimated
- 50B SF Estimated
Jennifer Biro
Chief Revenue Officer
- 20+ Years Experience
- Main Line Power Woman Honoree
- Titan 100 Honoree
Robert Griffith
Chief Strategy Officer
- Led cross-functional teams for compliance and site transformations
- Improved reliability and productivity in sterile pharmaceutical manufacturing
- Expert in FDA/cGMP standards, Lean Six Sigma, and operational excellence
Blake Williams
President of Manufacturing
- 20 Years’ Experience
- Led rapid execution of Pfizer COVID vaccine facility projects
- Managed expedited cleanroom projects for Amgen and Amplify Bio
Julie Tareco
Vice President of Pre-Construction
- Certified 25+ Years’ Experience
- LEED AP, BD+C
- Extensive expertise in managing large-scale life sciences and GMP manufacturing facility projects
Mike Wieffering
Vice President of Operations - CleanShield
- 43 years of full project‑lifecycle experience
- Specialist in design, build & installation of commercial/industrial HVAC & process systems
- Proven leader of large, critical, time‑sensitive projects with precision and efficiency
Bill Rieser
Vice President and General Counsel
- Super Lawyers Rising Star (2019–2021) & Super Lawyer (2022–2023)
- Represented clients in regulatory compliance, contract disputes & employment law
- Former Partner at The Gold Law Firm, P.C. (employment law, compliance & litigation)
Sidney Gold
General Counsel
- 50 Years’ Experience
- Expert in PA & NJ employment and civil rights litigation, advising on Title VII, ADA, ADEA & FMLA compliance
- Fellow of the American Bar Foundation; AV‑rated; Super Lawyer (2004–present) & Best Lawyers (2009–present)
Ralph Melfi
Senior Advisory Board
- 35 Years’ Experience in Cleanrooms
- Oversaw $1.4B of Cleanroom Projects as Team Dev Leader
- Part of BD Team on 1st FDA-Approved CAR-T Cell Therapy
Maik Jornitz
Senior Advisory Board
- Published 150+ papers on bioprocessing and facility design
- Former CEO of G-CON, SVP at Sartorius
- Expert trainer in single-use bioprocessing and cleanroom infrastructure
Greg Merrill
Senior Advisory Board
- 40+ years experience
- EPCM & Design Build Project Execution Expert
- Extensive Construction Fast Track Expertise
Our clients
These companies trusted us to build their vision
