LSA Associates

LSA Associates, Inc. (LSA) is a diversified environmental, transportation, and community planning firm that evolved from a small consulting firm formed by Larry Seeman in 1976, then called Larry Seeman Associates. The firm was designed to meet the need for environmental evaluation as a result of the passage of the California Environmental Quality Act (CEQA). In 1985, LSA formed an employee stock ownership program and is now a 100 percent employee-owned company.

We are recognized as innovators in the field of environmental impact assessment, and we have developed a reputation among clients and professional peers in both the public and private sectors as being thorough, innovative, and objective.

We offer the following services:

  • Environmental Analysis
  • Transportation
  • Biology and Wetlands
  • Habitat Restoration
  • Resource Planning and Management
  • Cultural and Paleontological Resources
  • Urban Design
  • Community and Land Use Planning
  • Noise Analysis
  • Air Quality
  • Geographic Information Systems (GIS)
  • Global Climate Change

LSA has offices in Berkeley, Carlsbad, Fresno, Irvine, Palm Springs, Point Richmond, Riverside, Rocklin, San Luis Obispo, California; and Fort Collins, Colorado with a cumulative total staff of over 230 full-time employees capable of fulfilling any project assignment, whether it is large or small. Our offices have a combined client base of hundreds of public and private clients, comprising public and private developers. Our Riverside office is equipped to handle the many facets of environmental issues associated with large- and small-scale commercial development, residential subdivision, roadway and infrastructure improvements, mixed use and Specific Planning, and industrial development.

LSA has been located in Riverside since 1991, and has prepared environmental documents for projects located in the City and throughout the Inland Empire for the past 37 years.


LSA Associates, Inc.
1500 Iowa Avenue, Suite 200
Riverside, California 92507

Ph: (951) 781-9310
Fax: (951)781-4277