Calleva: Detailed Company Information & Corporate Profile
Summary
Calleva is an independent education and outdoor experience company headquartered in Poolesville, Maryland, founded in 1993. The organization specializes in tertiary education and learning management through immersive outdoor programs.
Its core offerings include outdoor education, summer camp, school programming, farm‑to‑table initiatives, water sports, farming, and broader outdoor adventure experiences. Calleva designs curriculum that blends academic rigor with practical skills in nature-based settings, catering to students and community groups within the Washington Metropolitan Area.
The company employs 100–200 staff members and reports annual revenues between $10 million and $50 million (SIC 8200). Leadership includes Caitlyn Jennings as Head Counselor, Alison Liberman as Head Camp Counselor, Michael Graham as Kayak Instructor, Ashley McEwan as River School Director, Julie Clendenin overseeing Administration, Communications & Operations, Sarah Reschovsky as Program Director, and Wade Shigo as Chief Financial Officer. Additional team members such as Drew Thompson (Outdoor Operations Manager), Nathan Lassman (Program Administrator and Transportation Manager), and several seasoned instructors and counselors sustain Calleva’s comprehensive programming suite.
| Calleva Website | calleva.org |
| Social Links |   |
| Phone Number | 301-216-1248 |
| Industries | |
| Calleva Headquarters Address | Poolesville, Maryland, 20837 US |
| Company Size | 100-200 employees |
| Specialities & Services | Outdoor Education, Summer Camp, School Programming, Farm to Table, Water Sports, Farming, Outdoor Adventure |
| SIC Code | 8200 |
| DMA Code | Washington Metropolitan Area |
| Founded | 1993 |
| Estimated Annual Revenue | $10M - 50M |
| Operating Status | Independent Company |
| Updated: | 2026-09-17 |
Estimated Website Traffic
The chart shows a growth in traffic to the calleva.org website. In September, traffic increased to 4332, compared to 3990 in the previous month. The highest traffic in 2026 was recorded in January, reaching 11373 visits.
Workforce Turnover
Number of employees switched from or switched to
Departmental sample breakdown
Length of Employment
Calleva's workforce includes employees across a wide range of tenure levels.
6% have been with the company for 1 to 2 years18% have been with the company for 3 to 4 years15% have been with the company for 5 to 7 years32% have been with the company for 8 to 10 years29% have been with the company for more than 11 years
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