Nuclear Structural Engineering Pty Ltd. (NSE) was formed in July 2006 when the members of Lee and Marshall Consulting CC undertook to expand their operations to meet the growing demand for specialised structural engineering services in the Civil Engineering Industry in South Africa.

NSE Pty Ltd. is a BEE company, owned and run by Messrs. Derek Lee and Thaabit Rylands. Paul C. Rizzo Associates Inc. (PCR) of the US is another shareholder and is a well-established international engineering company which provides Civil Engineering services firm that also specializes in siting and engineering support services for nuclear facilities.

The focus of NSE is to provide specialist engineering services to the nuclear industry. Where the specialist resources are not available in-house alliances have been developed with other experts in the nuclear and allied industries.