Sean O’Brien

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Sean O’Brien, a biologist with more than 18 years of natural resources experience, has been with LSA since 1993. He specializes in wetlands and endangered species permitting, mitigation planning, and biological impact assessments for public and private clients. Mr. O’Brien has extensive experience managing the preparation of regulatory permit applications and associated documentation to secure approvals from state and federal agencies for projects ranging from small in-fill developments to large-scale infrastructure and capital improvement programs. For the past 10 years, Mr. O’Brien has managed LSA’s environmental services contract with the San Francisco International Airport, involving numerous capital projects affecting sensitive natural resources.

  • LSA's Approach & History

    About LSA: LSA's Approach & History LSA's Approach LSA is recognized as an innovator in the fields of service we offer and have developed a reputation among clients and peers as being thorough, innovative, and objective. Our professionals build long-standing relationships with our clients through sound decision-making, collaboration, and creative solutions in all 11 of our offices in California and Colorado. LSA realizes that clients do not hire companies, they hire people. LSA's people…

  • Offices

    About LSA: Offices LSA has 9 California offices located in Berkeley, Carlsbad, Fresno, Irvine, Palm Springs, Point Richmond, Riverside, Rocklin, San Luis Obispo, and one office in Fort Collins, Colorado.…

  • Board of Directors

    About LSA: Board of Directors The Board of Directors' responsibilities include review and oversight of the management and financial controls of the Company. In conjunction with the Principal group, the Board is responsible for developing management and financial goals to measure the performance of the company and compare the performance to these goals on a regular basis. The Board of Directors is also responsible for electing the ESOP Administrative Committee (four members), ESOP Trustees (thr…

  • Principals

    About LSA: Principals LSA’s Principals maintain significant involvement in all projects that LSA undertakes and provide leadership for the firm. This involvement ensures high quality standards, enhances communication between clients and LSA, and provides consistency and coordination among the LSA offices. Our professionals build long-standing relationships with our clients through sound decision-making, collaboration, and creative solutions in all 11 of our offices in California and Colorad…

  • LSA's Clients

    About LSA: Clients LSA has an extensive history in providing consulting services to a diverse range of clients throughout the United States. We have the resources to manage and successfully complete large-scale, multi-million dollar contracts while still providing responsive, cost-effective services on small, short-term contracts. Our clients include: Local Governments: City and County Planning Departments City and County Public Works Departments School Districts Special Distri…

  • Working at LSA

    About LSA: Working at LSA Celebrating 35 years of providing services to our clients, LSA, an award-winning firm, includes over 200 bright, creative, and dedicated environmental and engineering professionals and supporting staff in California and Colorado. LSA’s culture encourages camaraderie, professional growth, and community involvement. Some employees participate in sports such as co-ed baseball, annual golf tournaments, and triathlons; employees share camping trips and holiday parties;…