The Foundation of a Successful Project

Established in 1992 and based in Denver, Colorado

RE Tech+, Inc.

Began as a local consultant with experience in a construction loan administration group of a major bank. Since then it has grown into a respected consulting firm with a national presence, overseeing a range of both commercial and residential projects for a variety of clients. We are a diverse team of dedicated professionals founded in the banking, construction loan administration, engineering, construction design and project management fields.


Our project experience ranges from land development and homes for first-time buyers to mixed-use commercial projects with construction costs in excess of $500 million. We work with a diverse client base with projects nationwide.

RE Tech+, Inc.'s continually expanding portfolio of projects includes: commercial projects (office, warehouse, medical office building, retail, special use, and mixed use), resort, residential (single family, multi family, and condos), and land development. For a list of projects, please click here.


W. James von Tongeln, P.E. was a licensed Professional Engineer who spent thirty years in real estate and construction lending administration services and the management of engineering design, studies and construction services for diverse private, commercial, industrial and governmental agency clients. Mr. von Tongeln founded RE Tech+, Inc. in 1992 after gaining experience as a vice president and manager in a construction loan administration group of a major bank. Today, RE Tech+, Inc. continues to produce a superior work product, adhering to Jim’s legacy of excellence, integrity and expertise in his field.