About Us

About Us

“S&S is a construction project management firm serving clients in Southern California.”

Simpson & Simpson is a progressive firm utilizing the appropriate technological tools to maximize efficiency and value while achieving solutions that balance the critical environmental and economic issues that our clients face today. Our firm is home to some of the most talented and accomplished construction professionals in the industry and we embrace a corporate culture that demonstrates and further develops their capabilities.

As a certified Small Business Enterprise, Simpson & Simpson is “right-sized” to provide our clients with the optimum balance of flexibility, agility and responsiveness needed to achieve successful results for the best value. Combined with our history of providing consistent, reliable and quality services, our clients have the peace of mind knowing that Simpson & Simpson’s management professionals can guide any program or project through a successful completion

To know more about Simpson & Simpson, please watch our videos.


Established in 1976 by Carl and Brainard Simpson as a Certified Public Accounting firm, Simpson & Simpson began providing construction management services to the County of Los Angeles in support of the reconstruction efforts after the 1994 Northridge earthquake. In 2001, the Simpsons sold the construction management practice and Simpson & Simpson Management Consulting was created as an independent entity to further expand the firm’s services into Program, Project and Construction Management. Today, Simpson & Simpson is a full-service professional management organization serving a variety of clients in Southern California.



Lori Schumann

Denise Power

Ken Schumann, PE, LEED AP

Hamid Taheri, CPA

John Bingham, PE

Matt Henkelmann, PMP, LEED AP


“Delivering peace of mind through performance-driven achievement

Our clients know what this means - it’s the feeling they get knowing we understand their needs, challenges, concerns, and know what it takes to get the job done! Every Simpson & Simpson employee is challenged to continually improve and become industry leaders in their respective disciplines. We invest heavily in the training of each employee to keep them not only technically proficient but to make them effective leaders for the present and the future.

Our philosophy of performance-driven achievement applies to corporate citizenship as well. As a small business with strong ties to local communities, Simpson & Simpson is proud of its active involvement with local charitable organizations and participation in community-based internship programs.