For over 24 years, Gateway Science and Engineering (GSE) has been one of the premier construction management and engineering firms of Southern California. Our experienced professionals have the talent, aptitude and skill set to make your next project a success.


From Pre Construction to Information Technology and beyond, GSE has proudly managed hundreds of major projects and capital improvement programs throughout California valuing over 55 billion dollars in construction. We have worked hand-in-hand with school districts, counties, cities and various department agencies throughout Southern California.


At GSE, we have one singular goal: to provide only the finest service while emphasizing quality, integrity and value.