Who We Are

Who We Are

Our Professionals

Our Professionals

We have nearly 80 staff in five offices in California and Hawai‘i. 3 ways to get in touch with one of our senior experts:

  • Click on the yellow bird and "tell us about your project" 
  • Search our directory of senior staff to find the expertise you need
  • Call 408.458.3200

Find a Professional

Lauren De Silva, M.L.A. (Landscape Architect)

Lauren De Silva is a landscape architect and project manager with a background in all phases of professional design, from site assessments, to conceptual designs, to detailed construction documentation. She is a responsive and holistic thinker who creates budget-conscious, innovative, and sustainable designs. Reflecting her precision, communication skills, and eye for detail, her designs translate readily into biddable and constructible projects. Lauren also has experience following Universal Design principles and Americans with Disabilities Act standards for accessible design.

Mark Bibbo, M.S. (Senior Ecologist 2)

Mark Bibbo is a senior ecologist and project manager at H. T. Harvey & Associates, with more than 15 years of botanical experience. His project work has spanned California, covering most eco-regions and habitat types in the state including ranging from the delta and Central Valley to the San Francisco Bay area, Central Coast, and Sierra Nevada and into the southern California deserts. He has worked with clients in the public, private and non-profit sectors on more than 100 projects.

Mark Lagarde, B.S. (GIS Supervisor)

Mark is the leader of H. T. Harvey’s geographic information systems (GIS) group. Throughout his career, Mark has worked closely with biologists and engineers to develop and apply spatial data on large, complex projects. He has managed more than 300 GIS projects for client reports, including detailed analysis of stream banks, spatial analysis of species of special concern, and mapping of wetlands and marshes.

Matthew J. Wacker, M.S./M.C.P. (Senior Associate Ecologist)

With training in ecology and planning, Matt Wacker applies his expertise to the conservation of sensitive habitat across California. Much of his work focuses on rangeland ecosystem management, and in the habitats found in the Central Valley’s flood protection system. He helps clients with establishing and funding conservation areas, developing species and habitat-focused stewardship programs, and obtaining permits from state and federal resource agencies. Matt is also expert in the ecology of vernal pool grasslands and rangeland ecosystems. He has led field surveys for federally-listed branchiopods, and completed or overseen wetland delineations, rare plant surveys, and surveys for special-status fish and wildlife.

Matthew Quinn, M.S. (Senior Associate Ecologist)

Matt Quinn is a senior associate restoration ecologist with more than 15 years of experience working in native and nonnative grassland, desert, chaparral, coastal sage scrub, riparian, seasonal wetland, and oak woodland habitats. He also has an extensive background in field soil analyses, which he regularly utilizes while providing his clients a full range of ecological consulting services such as initial site and impact assessments, conceptual restoration and mitigation design development, detailed plans and specifications (i.e., construction bid documents), construction monitoring, preparation of biological as-built reports, and long-term monitoring and reporting.

Max J. Busnardo, M.S. (Principal)

Max Busnardo is a principal and senior restoration ecologist specializing in ecosystem restoration, wetland ecology, and watershed-scale ecological assessment. He assists Dan Stephens with leadership of H. T. Harvey & Associates Restoration Ecology group. While trained as a wetland ecologist, Max’s two decades of restoration project work spans a diversity of ecosystems found in the western United States, including tidal wetland, riparian, freshwater wetland, vernal pool, oak woodland, and coastal scrub.

Paul J. Conry, M.S. (Senior Associate Ecologist)

Paul is a Senior Associate Ecologist, and heads our Hawai‘i office. He combines knowledge of Hawaiian resources with more than 30 years of experience with State and federal environmental regulatory processes. Paul’s latest work with H. T. Harvey & Associates is focused on identifying workable approaches for renewable energy and land management projects in Hawai‘i, and conservation of native and endangered species.

Rachel Visscher (Landscape Architect)

Rachel Visscher is a landscape architect at H. T. Harvey & Associates, with a background in design and planning. She contributes to master plans, develops conceptual designs, and prepares construction documents in support of the design and planning process for various project types, including trail and open space, urban ecology, and habitat restoration projects. Rachel also has experience thoughtfully incorporating Universal Design principles and Americans with Disabilities Act (ADA) standards into site design.