Our Team

Sage Institute is comprised of uncommonly skilled, highly trained professionals at the top of their fields. Sage’s principals have provided practical and effective consulting services to public agencies, educational institutions, and private organizations for the majority of their careers. Sage Institute brings together professionals with diverse backgrounds and skills, and applies these skills—including project management, technical expertise in biology, planning, and environmental science—to provide cost-effective and efficient solutions for a growing and satisfied client base.
Kathleen Kirschenstein

Kathleen Kirschenstein serves is the President / CFO for Sage Institute, Inc. (SII). Ms. Kirschenstein has been employed at Sage Institute, Inc. since 2004 where she has provided a wide range of professional expertise. Ms. Kirschenstein’s responsibilities include management and control of the corporation’s daily operations and annual business affairs including but not limited to: corporate board management, financial control and management, contract management, tax management, insurance and risk management strategies, and client management. Ms. Kirschenstein’s work experience includes regulatory compliance oversight, construction monitoring, Geographic Information System (GIS), report preparation, special projects, client communications, marketing, and office management. Ms. Kirschenstein received her B.S. in Ecology and Systematic Biology from Cal Poly, San Luis Obispo in 1998.
Jason Kirschenstein

Jason Kirschenstein serves as Principal Biologist and Vice President for SII and is highly experienced in general and special-status wildlife and vegetation surveys, mitigation planning, regulatory compliance, Geographic Information System (GIS) applications, and environmental impact analysis. Mr. Kirschenstein is well versed in construction and mitigation monitoring and habitat restoration design / implementation and has extensive experience in the preparation of permit packages for Clean Water Act Section 404 U.S. Army Corps of Engineers permits, CWA Section 401 Certifications from the Regional Water Quality Control Board, and California Department of Fish and Wildlife Section 1602 Streamed Alteration Agreements. Mr. Kirschenstein has also managed the preparation of U.S. Fish and Wildlife Service Section 7 and Section 10 documentation per the Federal Endangered Species Act and CDFW Section 2081 take authorization documentation per the California Endangered Species Act. Mr. Kirschenstein received his B.S. in Natural Resource Management with a Concentration in Wildlife Biology from Cal Poly, San Luis Obispo in 1998.