Haynes Limited
- Information on services and projects in land acquisition, engineering, architecture, building construction and project completion for select groups of investors.
- http://www.hayneslimited.com/

Benchmark Group
- History of the firm and design project examples on commercial, institutional, and industrial facilities nationwide.
- http://www.bgark.com/

Crafton, Tull and Associates
- Information about the architectural, engineering and surveying services and design work available. Locations and contact information in state and Oklahoma listed.
- http://www.craftull.com/