Osa Water Works
- Provides water supply and alternative energy solutions for existing and planned off-the-grid homes and eco-lodges. Site assessments and consulting services, design and engineering, and construction and installation.
- http://www.osawaterworks.com/

Inti Tech
- Solar energy system consultants specialists in AC/DC photovoltaic hydro electric power generation. Offers alternative energy solutions for electricity production, water delivery, communications and remote living applications.
- http://www.intitechsolar.com/