Franco Seif is President and Chief Executive Officer of Clark Seif Clark, Inc. (CSC). He is also a co-founder of CSC.Franco been a leader in the environmental and engineering industry for over 3 decades. He started his environmental and engineering consulting career at Camp Dresser & McKee, Boston, MA, in 1985. In 1987 he worked as a consultant for EPI, Center, a small industrial hygiene company, Santa Monica, CA. In 1990, Mr. Seif started an environmental consulting firm, Californian Environmental Consultants, that provided asbestos, indoor air quality, and Phase I & phase II environmental site assessment services to a small group of clients. In 1996, Mr. Seif joined forces with Brian Clark and Robert Clark to form CSC.

Mr. Seif is also active in the community. He sits on the board of directors of St. Anne’s, a non-profit organization that provides care to abused young pregnant, mothers and their babies. Mr. Seif also sits on the advisory committee of the American Council of Accreditation and Certification (ACAC), a certifying body for the indoor air quality professional.

Mr. Seif hold a bachelor’s degree in civil engineering from Northeastern University, Boston, Ma, and a masters of science degree in engineering management from Drexler University, Philadelphia, PA. He hold a professional engineering registration in the State of California, and he is an asbestos consultant with the California Occupational, Safety and Health Administration.

Robert Clark is the Vice President and General Manager of Clark Seif Clark, Inc. (CSC). He is also a co-founder of CSC. In 1985 Mr. Clark started his career with Watt Industries (Housing Developer) in the Southern California High Desert. In 1994 he started his career in the Environmental Business with brother Brian Clark company, Clark and Associates, performing Asbestos inspections related to the 1994 Northridge Earthquake. In 1996 he co-founded CSC and continues to work to provide superior environmental services for CSC clients.

Mr. Clark is licensed general contractor with the State of California. He is a California certified Asbestos Consultant, Lead Inspector/ Assessor, and Lead Project Designer.

Mr. Derrick A. Denis is a Senior Vice President and a valued Clark Seif Clark, Inc. (CSC) team member since 2000. Mr. Denis is a practitioner, inventor, educator, author and volunteer, who has provided professional industrial hygiene (IH), health and safety (EH&S), infection control (IC), and Indoor environmental quality (IEQ) services for over 29 years. Since earning a B.S. degree in Environmental Science from Phillips University in Oklahoma, Mr. Denis has directed many thousands of projects targeting common and emerging environmental hazards for a diverse clientele domestically and abroad. He has provided expertise on numerous legal cases for both Plaintiffs and Defendants.

Mr. Denis holds, or has held, numerous industry-relevant certifications, including, but not limited to, Council-Certified Indoor Environmental Consultant (CIEC), Certified Indoor Air Quality Professional (CIAQP), and Council-Certified Emergency Operations Professional (CEOP).
Mr. Denis is an inventor of, and patent holder for, Sewer Gas Solutions, a pourable product that inhibits evaporation of water in plumbing traps, thereby preventing sewer gas infiltration into buildings.
Mr. Denis is a sought after presenter, who has provided hundreds of educational sessions for associations and institutions around the world.

As a subject matter expert, Mr. Denis has appeared on television programs, been interviewed on radio talk shows, written and headlined educational videos, been quoted in major & local newspapers, authored many industry articles, and been published in peer-reviewed scientific literature.
Mr. Denis’ history of volunteerism has included positions on numerous Boards of Directors for IEQ Industry Organizations (e.g. Indoor Air Quality Association (IAQA), Environmental Information Association Arizona Chapter (EIA-AZ), American Council for Accredited Certifications (ACAC), etc.). He is the Chapter Director for the Phoenix IAQA Chapter.

Bill Jones is Vice President of Industrial Hygiene for Clark Seif Clark, Inc. His career of over 30 years as an environmental health and safety professional has included consulting as well as working for major oil and gas and aerospace companies. He has held Environmental Health and Safety management positions at the Northrop B-2 Division, Gencorp Aerojet in Azusa, CA (leading Aerojet to become the first aerospace company in California to achieve the coveted VPP Star Status), Bureau Veritas North America, Inc. and Total Safety U.S., Inc.

Bill has a Master of Public Health from Oklahoma University, a bachelor of science in chemistry from The University of Central Oklahoma and a bachelor of science in biology from Oklahoma State University. Bill is a certified industrial hygienist, certified safety professional and certified professional ergonomist.

He has been active in local sections of the American Industrial Hygiene Association (AIHA) and local Chapters of the American Society of Safety Engineers (ASSE). He served on the Board of Directors of the Oklahoma Section and the Southern California Section of AIHA (Past President SCAIHA). He is also Past President of the Orange County Chapter of ASSE.

Jeff joined CSC in June 2015 after serving nearly 28 years at a national engineering firm. Skills developed in his former capacity as Principal Project Manager and Office Manager provides ideal qualifications to lead our subsurface investigation/remediation group. He has directly managed several major projects and programs for a diverse customer base including the Federal government (US Navy, US Forest Service, Army Corps of Engineers), local governments (public works, port authorities, water districts) and private customers across the country. He has a proven track record in managing complex, multidisciplinary projects involving soil, soil vapor, groundwater, surface water, air and contaminated building materials on a wide-range of contaminants. He has served as project manager and/or technical manager on hundreds of assessments ranging from small, initial assessments (Phase Is) through multimillion dollar soil and groundwater investigations and cleanups. He is extremely competent at understanding the life-cycle of environmental projects, and the interrelation of technical objectives, regulatory requirements and cost implications in completing projects.

Jeff is Vice President of Environmental Services at CSC. He earned a B.A. in Geology from the University of Northern Colorado and M.S. in Geology from the University of Southern California, and is a California registered Professional Geologist (1992).