Mountains-to-Sea Ecological (MTS Ecological) is an independent ecological consulting firm serving land trusts, government agencies, design and planning professionals, environmental organizations, businesses, and private landowners in the Blue Ridge and eastern United States. Founded in 1997, the firm draws on decades of fieldwork and experience across hundreds of thousands of acres to help clients understand, conserve, and responsibly manage land.

Its ecological inventory services include botanical and wildlife surveys, threatened and endangered species assessments, wetland delineations, rare-species evaluations, aquatic inventories, natural community assessments, old-growth forest surveys, and cultural-resource surveys. For conservation and development planning, MTS prepares conservation easement baseline documentation, conservation values assessments, easement monitoring, minimum-impact plans, GIS mapping, and erosion-control plans.

The firm also provides restoration and land-management services, including forest, grassland, stream, and wetland restoration; pollinator meadow development; native and rare-species restoration; invasive-species eradication; hemlock woolly adelgid control; and ecological forestry. Trail design, installation, and maintenance are available for hiking, mountain biking, and UTV use. MTS combines field research and practical planning to support conservation and land stewardship.