Call Now
Website
Call
Business Details
37 Years
experience
Your Trusted Engineering Partner in West Virginia
Founded in 1989, Terradon Corporation has established itself as West Virginia's largest woman-owned engineering firm, delivering innovative design solutions and exceptional client service for over three decades. Our family-owned business combines technical expertise with a commitment to community-driven values, specializing in environmental, geotechnical, land development, and transportation engineering projects. With a team of 100 engineering professionals and a focus on sustainable practices, we prioritize accountability, collaboration, and continuous learning to create lasting value for clients and communities.

Our leadership team brings decades of experience in complex projects, including the Summit Bechtel National Scout Reserve, while maintaining a culture of mentorship and diversity. We measure success through the positive impact we create, demonstrated through 1,000+ annual hours of internal training, 25+ annual community events, and recognition as a Top Place to Work for nine consecutive years.
Services
Transportation Engineering Geotechnical Analysis Land Development Environmental Solutions Community Infrastructure
Details
  • Year established: 1989
Highlights and features
  • 31 years of experience on complex engineering projects across Appalachia and the Mid-Atlantic
  • Certified Women's Business Enterprise with national industry recognition
  • 100+ engineering professionals providing multidisciplinary expertise
  • Commitment to sustainable design and community development
  • Award-winning team with 9 consecutive Top Place to Work recognitions
Associations and certifications
  • Women's Business Enterprise National Council (WBENC)
What people say
Excellent teamwork Community impact Career growth Innovative solutions Collaborative environment
Services
Transportation Engineering
Our transportation engineering team creates data-driven network solutions that enhance traffic efficiency and safety. We ensure compliance with design specifications and regulatory requirements through rigorous material testing and documentation. With expertise in roadway design and infrastructure rehabilitation, we deliver transportation systems that support regional economic growth while maintaining environmental stewardship.
Land Development
We transform undeveloped land into functional spaces that balance client needs with environmental considerations. Our approach combines civil engineering expertise with sustainable design principles to create commercial, educational, and recreational developments. Through collaborative planning and precise surveying, we ensure projects meet regulatory standards while maximizing long-term value for property owners and communities.
Geotechnical Analysis
Our geotechnical services provide critical subsurface data that informs foundation design and construction planning. By analyzing soil composition and stability, we develop tailored recommendations that prevent structural issues and ensure project longevity. This technical expertise supports safe, cost-effective development across diverse terrain in the Appalachian region and beyond.
Environmental Solutions
We deliver environmental compliance solutions that keep projects on schedule while protecting natural resources. Our team specializes in permitting, erosion control, and wetland assessments to meet federal and state regulations. Through proactive environmental stewardship, we help clients achieve their development goals while maintaining ecological balance in Appalachian and Mid-Atlantic communities.
Community Infrastructure
Our community infrastructure projects focus on creating accessible, sustainable public spaces that enhance quality of life. From trails and parks to civic facilities, we combine technical expertise with community input to develop infrastructure that serves current and future generations. This approach has earned recognition for projects like the Summit Bechtel Reserve and numerous local accessibility initiatives.
People
Virginia L. King
Chief Executive Officer, Owner
Founder of Terradon with 35+ years of leadership in engineering and financial management. Active in NAWBO and WBENC, she serves on multiple civic boards including the Clay Center for the Arts and Sciences. Drives strategic growth while maintaining family business values.
Ashley Lioi
Principal Engineer, Owner
Licensed Professional Engineer overseeing civil engineering practice with expertise in energy and site development. Former project manager for the Summit Bechtel Reserve, combining technical excellence with practical construction knowledge. Focuses on multidisciplinary project oversight.
Amelia King Randolph
Geologist, Owner
Geologist and project manager with dual expertise in earth sciences and business administration. Provides technical oversight for energy projects while guiding corporate policy and financial strategy. Combines fieldwork with executive leadership responsibilities.
Ryan Wheeler
Director of Business Development
Leads business growth initiatives and industry relationships. Former project manager with construction background, recognized as West Virginia's top professional under 40. Oversees market expansion into government and industrial sectors.
William S. Thornton
Engineering Department Head
25+ year veteran managing complex transportation projects and trail systems. Former construction engineer with expertise in roadway design and infrastructure rehabilitation. Serves as Project Manager for US Army Corps of Engineers geospatial contracts.
Questions
What engineering services does Terradon specialize in?
Terradon specializes in transportation, land development, geotechnical, and environmental engineering services with expertise in sustainable infrastructure projects.
Is Terradon a certified woman-owned business?
Yes, Terradon is certified as a Women's Business Enterprise through WBENC and is recognized as West Virginia's largest woman-owned engineering firm.
What geographic areas does Terradon serve?
Terradon operates throughout West Virginia, Ohio Valley, Appalachian region, and Mid-Atlantic states with project experience across the United States.
How does Terradon support community development?
We invest in local communities through 25+ annual events, environmental stewardship initiatives, and educational programs that develop future engineering professionals.
What career opportunities exist at Terradon?
Terradon offers engineering, environmental, surveying, and construction management careers with 1,000+ annual training hours and mentorship programs for professional growth.