Passion for Protection of People and Property

4 S.T.E.L. Engineering has a passion for what we do—Structural Engineering. We are passionate about it because, essentially, structural engineering strives to prevent the buildings we are in or large objects arounds us from falling down and causing people to get injured or property to be damaged. Without structural engineers, the world around us would be much more dangerous.

4 S.T.E.L. Engineering's Story

4 S.T.E.L. Engineering, Inc., founded in 2005 (“STEL” rhymes with “tell”), is committed to providing our clients with the best in structural design and engineering. 4 S.T.E.L. was formed following the passing of Edmund Foerstel. Mr. Foerstel was an accomplished structural engineer with a career that lasted more than 50 years and for whom Dustin Rosepink, S.E., President and CEO of 4 S.T.E.L., had apprenticed following his graduation from the University of Wyoming.  Honing his skills and craft, Dustin led 4 S.T.E.L. to quickly become one of the most sought-after structural engineering firms in California due to his expertise in the burgeoning renewable-energy market. 4 S.T.E.L. provides structural design and engineering for all things renewable, including steel solar canopies, solar ground mounts, solar roof mounts, EV chargers, battery storage systems, etc., with many of these constructed at California schools and colleges. 

However, we wanted to expand our reach, both in new and established construction markets. In March of 2021, this culminated in 4 S.T.E.L.’s acquisition of Bushra Tsai Incorporated (BTI, formerly Ajit Randhava & Assoc.), which had been in business since 1979. 4 S.T.E.L.’s acquisition of BTI allowed us to incorporate their unparalleled knowledge of and experience with projects such as distribution warehouses and fulfillment centers, freezer and cold-storage facilities, food facilities, commercial centers, mid-rise office and medical buildings, parking structures, industrial and manufacturing buildings, and shopping centers. 

Today, our success is not simply based on how many projects we win, but in how many partnerships we create, how many jobs are created and how many lives are improved as a result of the work we do, how many people rely on the safety and stability afforded in a properly engineered design. We strive for this level of success in each project we undertake, and we look forward to having the opportunity to serve you in this way.


Meet Our Team

Our Affiliations

As a Small Business Enterprise (SBE), 4 S.T.E.L. Engineering is committed to being actively involved in our local community, the local engineering community, and the A&E community at large. We work with local non-profits to assist our local community and provide opportunities for our employees to serve. We also advocate for the advancement of safe engineering practices and methods and support the education of future engineers through professional memberships. Some of the organizations we work with or are members of include

  • 4 S.T.E.L. is a certified Small Business Enterprise.

  • American Society of Civil Engineers

    ASCE pioneers new programs, policies, educational activities, and professional resources to help them successfully compete in their business.

  • International Code Council

    The International Code Council (ICC) is a non-profit organization dedicated to developing model codes and standards used in the design, build and compliance process.

  • SEAOC

    The Structural Engineers Association of California is an authoritative world leader in the practice of structural and earthquake engineering, a nationally influential participant in structural code and standard development, and a valuable resource to practicing structural engineers.

4 S.T.E.L. Engineering Leadership Team

  • Dustin K. Rosepink, SE

    President & CEO

  • Jonathan Varela

    COO

  • Kari Taylor

    Controller

  • Roger Schumacher, PE

    Dir. of Engineering Ops. - Mission Viejo

  • Francisco Andrade, SE

    Dir. of Engineering - Mission Viejo

  • Mitch (Cheng Yu) Tsai, PE

    Project Executive - Anaheim

  • Sandeep Rajput

    Dir. of Engineering Ops. - Anaheim

  • Brenden Brown, PE

    Senior Project Mgr. - Anaheim

We are ready to help!

Our team of professionals is here to listen to your needs and help you achieve your project goals.

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