R K Energy Engineering has performed services for a wide range of clients, including energy producers; energy transmission and distribution companies, energy marketers and suppliers; equipment suppliers and manufacturers; commercial, industrial and institutional energy users; governmental agencies, utilities; project developers and owners; other consulting, contracting and engineering companies.

The following is a representative listing of these clients.

1. Industrial and Manufacturing
2. Project Developers
3. Utilities and Utility Subsidiaries
4. Pulp, Paper and Wood Products
5. Oil, Gas and Chemicals
6. Energy Marketers and Suppliers
7. Equipment Manufacturers and Suppliers