Donna & Tim Mast Tim has been designing, engineering, selling, installing, and providing repair services for the ever-expanding cryogenic industry since 1988. In fact, one of the first companies he worked for was a pioneer in the cryogenic piping industry. He began as a Designer, gaining his technical foundation required before transferring into a Technical Sales role. In the following years, he continued to gain knowledge and experience by excelling in sales positions at multiple companies in the cryogenic industry. During those years in sales, Tim worked from a home office, where Donna was also home with their children. As a result, she and the family gained first-hand experience in the cryogenic piping industry. In 2009, Tim and Donna decided together that they would start their own cryogenic piping company. Their company has grown and moved, time and again. They take care of the company in the same way they take care of their own family, together, and with much love. Family comes first to Tim and Donna, which is one reason they started their own company, where they work together and with their children. When they aren’t at CryoWorks, Tim and Donna love spending time with their grandchildren, camping, and vacationing. Tim, Donna, and their entire family are always looking forward to that next family trip.
Tim Mast Jr Tim Jr. Has enjoyed working in the family business since its inception in 2009. During the early years, he worked part-time while pursuing his Bachelor’s degree in Mechanical Engineering from Cal Poly Pomona. He has held positions in drafting, engineering, and production management, which have lead him to his current role as VP of Operations. Now, he oversees all operations coordination with sales, engineering, and manufacturing, ensuring that all jobs are delivered correctly and on time. This means that from start to finish, Tim Jr plays a vital role in everything from quoting to delivery!
Tim has several interests outside of CryoWorks. He loves to travel and has dreams of visiting the seven wonders of the world. On a more local scale, he enjoys off-roading, as well as hanging poolside with friends and family.
Nick Theiss 
Tamara Sipos Tami has run our entire financial department since she joined CryoWorks in 2016. In addition to her CFO responsibilities, she has played a vital role in many aspects that go along with a growing company. Tami has been a part of the Masts’ lives since 2005. During a break in her career, while caring for her children, she and Donna met and became friends. This relationship, formed in their children’s kindergarten classroom, led to their professional partnership once CryoWorks required her financial expertise. Prior to that, she was a partner at a CPA firm. She now deems CryoWorks the best place she has ever worked. Crediting the family culture of the company in making CryoWorks a fun place to spend your days. When she’s not crunching numbers and managing our finances, Tami enjoys traveling and camping with her family, volunteering at school sporting events, gardening, and cooking with her husband.
Matt Miller 
Leland Cotten Lee has worked in the cryogenic industry since 1991, overseeing many projects in the aerospace, semiconductor, entertainment, and food/beverage industries. He specialized in field services of cryo-systems and now helps our customers with everything from sales to customer training. Lee met CryoWorks’ president, Tim Mast, in 2001. Lee joined CryoWorks in 2012 and has been a great asset to the company since. Lee married Katie in 1990, and they have two adult children with families of their own. Outside of work he enjoys camping, gardening and even makes his own beer! We’d also like to add that most importantly, we owe it to Lee for successfully establishing Hawaiian shirt Fridays here at CryoWorks!
Craig Hoyer Craig has worked in the cryogenic industry since 1982 – with a 5-year break starting in 1999 developing his marketing and creative side as the Creative Design Manager for a large manufacturing company. Since that time Craig continued to grow in various roles in management and overseeing vacuum jacketed piping engineering, marketing, and sales. Most of his experience has been in the space launch cryo fuel industry. Craig jokes that he’s been doing this so long that he was actually involved in the design and supply of the cryogenic piping required for Kennedy Space Centers SLC-40 in the early 1990s. The site was eventually decommissioned, and Craig was involved once again for the piping system design and supply for the present launch company. With his background working in the aerospace industry, government and commercial projects, Craig will manage all sales and design aspects. If it’s on the East Coast, Craig is there to help!
Craig enjoys watching “The Ohio State Buckeyes” football as well as having many outside interests including playing hockey, boating, golf, woodworking, and vacationing with family.
Brandon Council Brandon’s role as a Sales Engineer aligns with CryoWorks’ vision to provide technical sales staff that can be the single point of contact. He helps our customers identify and understand their cryogenic needs and assists with project designs and quotes. After graduating with a Bachelor’s degree in Mechanical Engineering, Brandon was a Mechanical Designer, designing industrial sensors and controls for four years. In 2018 he joined the CryoWorks team, and for his first year, he worked in the Design Department where he gained the necessary skills to be a successful Sales Engineer.
When Brandon isn’t on the job, he loves driving sand rails and off-roading on the dunes. He also enjoys working with electronics, especially computers. Building custom computers is one of his favorite hobbies!
Ricardo Vargas 
Cecilia Felix Cecilia makes sure that everything we produce is of the highest quality. She effectively ensures that the manufacturing process is carried out with excellence. When Cecilia is notified of an issue, she will implement change and make sure that it is adequately enforced. Since 2017, Cecilia has shown her dedication to us with an 80-mile round trip commute….everyday! She explains that this is well worth the chance to work with such wonderful people here at CryoWorks.
Outside of work, Cecilia loves to travel. In particular, she hopes to visit all of the states in Mexico and their archeological sites.
JD De La Cruz JD is in charge of the company’s purchasing and inventory department, making sure that we are well supplied and fully stocked for whatever interesting project comes our way! With a background in purchasing and manufacturing, JD has proven to be a valuable asset to CryoWorks. JD joined us in 2018 as a referral through a close mutual friend and colleague, and we’re so thankful!
JD is married and loves fishing, going to baseball games, and camping!
Aaron Gage Aaron plays an essential role in the entire production process. He works with all departments to ensure smooth execution of each project. Essentially, he makes everything operate more efficiently, and he does this with unmatched expertise. Having held Lead Maintenance and Mechanical positions, Aaron is the perfect man for the job.
Aaron is married to his high school sweetheart and has three daughters. And when he’s not managing operations of all sorts here at CryoWorks, he enjoys off-roading, boating, camping, as well as doing mechanical work on cars and trucks.
Jim Crane, Jr. 
Derek Dougherty 
Josh Baker Josh joined CryoWorks in 2017. Since then, he has played a key role in the overall manufacturing process. His responsibilities include coordination of day to day production tasks while enforcing company policies regarding personnel safety, training, and onboarding. All CryoWorks employees benefit from Josh’s role as Safety Coordinator during his entertaining monthly safety meetings. Josh is always improving our safety measures and standards to ensure that all employees get to go home safely to their families at the end of the day. Though he hails from Minnesota, Josh moved to California 13 years ago where he met owners, Tim and Donna Mast. From their first meeting, Josh recalls their exceptional kindness and humility and soon after was offered a job at CryoWorks!
While not on safety duty, Josh enjoys spending time with his significant other, Katie. Together, they love hiking! They recently visited Bryce Canyon, Capitol Reef, and Zion National Park. He makes sure to take a big hiking trip every year.
Brittanie Evans 
Monica Ortiz 
David Dickens David joined CryoWorks in 2017 as the Design Manager, where he ensures that all-important details from the technical sales representative are communicated to the customer through detailed engineering drawings and specifications. He continuously improves the design department processes and procedures to ensure drawing consistency and accuracy.
Mechanical design wasn’t always at the forefront of his mind. David originally received a Bachelor’s degree in English and planned to become an English teacher. However, he made a mid-course change and got into the field of engineering and design. After taking courses and earning certificates, mechanical design quickly became his field of expertise!
David is married and has two children. He is also an avid aquarist, meaning he loves fish tanks! And when not at CryoWorks, David enjoys spending time with his family, fishing and working on his house.
Heidi Marsh Heidi makes sure that we are all taken care of, and of course, receive our paychecks! Heidi brings a wealth of knowledge to CryoWorks from her experience in administrative roles in a variety of professional fields, including four and a half years of human resources management at a large church.
Heidi is married to a firefighter, and they have one teenage daughter. When away from work, she loves traveling with her family and camping. She also enjoys crafts of all sorts, including scrapbooking and cardmaking, and remains very involved at her church.
Bernardo Chavez Bernardo is an essential team member here at CryoWorks and handles everything pertaining to our shipping department. He manages shipping documents, packaging, crating, loading flatbed trucks, and effectively coordinates shipping details with all CryoWorks departments, vendors, and customers. To close out the project, he provides tracking information to the customer when their order has shipped. Since joining CryoWorks in 2015, Bernardo has been available for anything and everything that needs doing. We can always count on him for a job well done, and he does it all with a smile. Bernardo enjoys his job and the kind people with whom he works, even considering them family. He explains, “people don’t believe me when I tell them how great my job is. You cannot find this in another company.”
Bernardo has been married for over 30 years and has two sons and one grandson. Additionally, he enjoys traveling to Mexico!
Shawn Bishop Since 2012, Shawn has been instrumental in the development of the CryoWorks quality control process. It is his mission to ensure that our customers receive tested and quality assured products. Shawn accomplishes this by completing project required tests, such as Helium Mass Spec testing, pressure testing, flow testing, and vacuum retention. Finally, Shawn evaluates the test results to ensure that each product is of sufficient quality for delivery to our customers.
When he’s not making sure that everything is in tip-top shape, Shawn loves shooting guns, going off-roading, and boating at lakes and rivers. In his leisure time, you can find him prioritizing cleanliness (which makes him especially fitting for a quality intensive position), lounging on the beach, or cracking a joke.
CryoWorks was built upon the values of a family-oriented culture and top-quality products. And today, ten years since our inception, these principles remain fundamental to everything we do. We are proud to provide our customers with top-tier products and exceptional customer service.
1. We have had 10 straight years of sales increases. 2. We broke the 50 Employee mark and we plan to keep on going. 3. We expanded our sales force,
CryoWorks, Inc.
3309 Grapevine Street
Jurupa Valley, CA 91752
Phone: 951-360-0920
fax: 951-848-9503
sales@CryoWorks.net