Jamie Krejsa

President / Chief Executive Officer

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Jamie Krejsa is President and Chief Executive Officer of EnviroScience, Inc.  From his early years with the company and in his role as Director of Ecological Services, Jamie has been central to the growth of EnviroScience as it exists today. He has worked to make EnviroScience into a renowned company with a national reputation as an environmental solution provider. 

With over 20 years of experience, Jamie has grown the business by educating the industry on how it can be profitable to do the right thing when faced with environmental challenges and opportunities. Drawing from his expertise as a biologist and an educator, Jamie developed training protocols that perfectly marry the science and the business of a hands-on approach. It is this approach that empowers our staff of more than 150 scientists and professionals to provide environmental solutions in any environment. 

Jamie has overseen the management and the execution of over 8,000 site evaluations nationally, reinforcing his expertise in all varieties of biological evaluations.  Jamie’s dedication and focus on quality science has earned himself and EnviroScience tremendous agency respect, a benefit to every client he and EnviroScience serve.

Contact JKrejsa @ EnviroScienceInc.com


Few environmental firms in the country retain EnviroScience’s degree of scientific know-how, talent, and capability under one roof. The diverse backgrounds of our biologists, environmental engineers, scientists, and divers enable us to provide comprehensive in-house services and an integrated approach to solving environmental challenges—saving clients time, reducing costs, and ensuring high-quality results. Our client guarantee is to provide “Excellence in Any Environment” meaning no matter what we do, we will deliver on our Core Values of respect, client advocacy, quality work, accountability, teamwork, and safety. EnviroScience was created with the concept that we could solve complex problems by empowering great people. This concept still holds true today, as our scientists explore the latest in environmental legislation and regulations and incorporate the most up-to-date technology to gather and report data.

EnviroScience expertise includes but is not limited to: aquatic survey (including macroinvertebrate surveys and biological assessments); ecological restoration; ecological services (including impact assessments, invasive species control, and water quality monitoring);  emergency response; engineering and compliance services; endangered mussel surveys; laboratory and analysis; stormwater management; threatened and endangered species; and wetlands and streams (including delineation and mitigation). Further, EnviroScience is one of the few biological firms in the country that is a general member of the Association of Diving Contractors International (ADCI) and offers full-service commercial diving services.