About Us

Volant EcoServices, LLC is a woman-owned small business specializing in bat surveys, environmental assessments, biosurveys, and regulatory compliance.

We provide scientifically rigorous data collection to support conservation planning, permitting, and environmental stewardship. Our projects range from small, single-site surveys to large-scale bioinventories, ensuring tailored solutions for every client.

We work with a diverse range of partners, including government agencies, private developers, conservation organizations, and industry leaders. Committed to precision, efficiency, and ecological integrity, Volant delivers high-quality environmental consulting services that balance development needs with science-based solutions.

Mary Gilmore

Co-founder | Principal Ecologist

Mary is a dedicated ecologist who has been working across the eastern United States since 2008. Her work has focused heavily on bat communities, and she currently holds a USFWS recovery permit for Indiana bats, northern long-eared bats, and gray bats.

Mary brings a deep understanding of endangered species ecology to every project. She’s led a wide range of bat survey efforts—from mist-netting and acoustic monitoring to radio telemetry, harp trapping, and cave surveys. Her experience spans both regulatory and research-focused work for clients such as the Department of Defense, Federal Highway Administration, state DOTs, and conservation agencies. Whether she’s working on proposed coal mines, natural gas pipelines, or sensitive conservation lands, Mary’s expertise helps clients navigate complex environmental review processes while protecting vulnerable species and habitats.

Beyond bats, her fieldwork has included vegetation surveys, aquatic insect sampling, freshwater mussel work, avian surveys, and amphibian monitoring. Known for her balance of technical precision and down-to-earth collaboration, Mary is just as comfortable in the field as she is reviewing reports or coordinating with partners. She brings curiosity, care, and a lifelong commitment to conservation into every project she takes on.

Dan Cox

Co-founder | Principal Ecologist

Dan has been conducting field research throughout the United States since 2003, with a strong focus on rare species and habitat protection. His career has spanned a variety of roles—from hands-on field biologist to trusted consultant and team leader. Dan has conducted ecological surveys across the U.S., helping clients navigate the complexities of environmental regulations while staying grounded in solid science.

Specializing in bat conservation, regulatory compliance, and large-scale bioinventories, Dan is known for his thoughtful approach and deep field knowledge. He has worked with a diverse range of clients, including state and federal agencies, nonprofit organizations, and private sector partners.

Driven by a genuine love for the natural world, Dan is passionate about finding practical, ecologically sound solutions—and mentoring others who share that passion. Whether in the woods or in the office, he brings curiosity, integrity, and a commitment to doing the work the right way.