DMOC History

DMOC was founded in 1996 by a pioneering engineer and toolsman with one purpose in mind—a superior engineering and manufacturing solution for you, our client. Over the last 20 years, our team has gained both broad and deep expertise to better help our clients with small to large, easy to complicated projects.

Over these years, we have grown into a skilled team that reliably dedicates themselves to providing our clients with master craftsmanship, quality production, cost-effective pricing, timeliness, and expert engineering and design support.

Our mission is simple: we want to spoil our clients.

We want to spoil our clients with quality, timely, and cost-effective CNC manufacturing. We meet your goals and support your projects with a proven systems approach, sense of pride, and first-class performance you’ll struggle to find elsewhere.

We do not claim to be all things to all customers, but we take pride in being the best, most precise, timely, and cost-effective in our specialization. Below are some of the resources, which when combined, help us deliver to your expectations:

  • A veteran team of skilled experts with broad and deep experience you can rely on
  • Multiple and varied CNC machines for flexibility, specialization, and quality
  • Multiple CAD and CAM software systems to match your designs
  • Hundreds of cutting tools for the finer details and “sizzle” you hope for
  • Many varieties of materials to match your needs

We are dedicated craftsman, and we blend the powers of automation with the expertise of good old-fashioned fabrication. The result is precision, quality, good pricing, timeliness, and the customization you want for your project, and we love what we do. In other words, we’re passionate about a solution designed and executed to spoil you. Welcome to DMOC.

Thane RiversThane Rivers
Founder, COO

Thane was born in Inglewood and raised in Torrance, California. He graduated from the United States Naval Academy with a degree in Physics. He also earned a Masters of Science in Astronautical Engineering from the Naval Postgraduate School. Thane served as a Service Warfare Officer aboard the USS Chandler, USS Gary, USS John A. Moore and as Combat Systems Officer for COMDESRON 33.

During his Naval service, Thane achieved the technical mastery of the multiple, sophisticated and widely varied shipboard systems necessary for operational success. More importantly, he honed his ability to inspire and manage the amazing people who maintain and operate these complex systems. Building on the knowledge and experience acquired after years of naval service, Thane founded Diversified Manufacturing of CA, Inc. (DMOC) in 1996 to provide creative engineering solutions and 3D manufacturing services. Thane has built DMOC into a vibrant company that enjoys the repeat business of clients such as Kenworth Trucks, Jacuzzi Spas, Legoland, and Watkins Manufacturing.

Clever and tenacious, he is a man who understands “A message to Garcia”. Thane Rivers is a “nut and bolts” guy who is down to earth, listens well and understands his customers’ needs. He is highly sought after for his ability to think “outside of the box,” and he solves problems with practical, timely, and innovative product designs that deliver results.

Thane lives in Carlsbad, CA with his wife Jerri. They have two adult sons, both Eagle Scouts who are fine citizens. The family enjoys active and invigorating time together boating, camping, off road motorcyling, mountain biking, hunting, skiing and wakeboarding. He volunteers his time mentoring youth and in participating in serving members of the community. Thane is fluent in Spanish. Thane can be reached at

Jerri RiversJerri Rivers

Jerri received her bachelor’s of science in marketing from California State Univeristy, Chico in marketing. Since that time she has gained over 20 years experience in marketing, accounting, and finance.

Jerri live in Carlsbad with her husband Thane. In her free time, Jerri enjoys cooking, playing the piano, reading, chasing her “three” boys Thane, Dakota, and Logan around the desert and lakes.

Steve ShallenbergerSteve Shallenberger

Steve was born in Provo, UT, growing up loving the mountains and sports (captain of the football team).

He attended the Air Force Academy where he received a Bachelor’s of Science in Mechanical Engineering. He followed graduation attending ENJJPT (Euro-NATO Joint Jet Pilot Training), after which he flew F-16’s for 9 years.

As an F-16 pilot he lived in Ohio, Utah, Arizona, Korea, and was deployed twice to Iraq as part of Operation Iraqi Freedom. He attended Weapons School (top gun) and subsequently was the squadron weapon’s officer in South Korea.

He received his M.B.A in 2017 from Wharton Business School (University of Pennsylvania) with a joint focus on finance and marketing. Concurrent with his M.B.A he gained value experience working with boutique private equity firms in sourcing, analyzing, and vetting target acquisitions.

He is married to Deanne Shallenberger and they enjoy skiing, playing, … with their three kids: Ginger, Reed, and Luke. Steve is fluent in Korean.

Tommy ShallenbergerTommy Shallenberger

Tommy has lived around the world, including 5 years in Eastern and Western Europe, having lived the last 10 years in both Northern and Southern California. He received his Master’s and Bachelor’s degrees in Accounting from Brigham Young University. He worked briefly with Ernst and Young in Palo Alto, CA before joining a leading California energy efficiency company where he worked as a technician, salesperson, project manager, sales manager, solar director, and most recently as the San Diego regional manager.

Tommy was asked to establish an office in the San Diego region for this company in 2010. In this function, he helped build the office to 50+ employees and contribute to 5x regional revenue growth over the last 5 years while still maintaining target margins. While growing this business, he gained invaluable experience in sales, management, human relations, operations, systems management, finance and accounting, strategy, and business development.

Tommy currently lives in North San Diego County together with his wife Michaela and two fun boys, Forrest and Oslo. He enjoys anything in the outdoors, gardening, reading, playing the piano, and spending time with family and friends. Tommy is fluent in Spanish and Hungarian, and is currently in the process of learning German.