CovalentCovalent is a Silicon-Valley-based materials science and analytical services company that turns complex material testing data into clear, actionable insights for innovators across high technology industries. The company partners with engineers and scientists to accelerate development, improve performance, and solve challenging materials and device problems with a comprehensive suite of advanced analytical techniques—from failure and compositional analysis to contamination, quality control, and performance optimization. Backed by world-class scientists, cutting-edge instrumentation, and a digital platform for data access, Covalent delivers precise, reliable results that help customers make confident decisions throughout the development and manufacturing lifecycle.
Covalent (covalent.com) has 19 customer reviews on Five Star Index, with an average rating of 4.6 out of 5.
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Research & Development · California, California
Excellent
Research & Development · Los Angeles, California
Excellent
Research & Development · San Francisco, California
Excellent
Research & Development · Hayward, California
Excellent
19 approved reviews, newest moderated first
Esteban R.
The support provided and also fast response in our needs. Special Thanks to Jin
Response from CovalentOct 23, 2026
Thanks so much, Esteban! We’re glad our fast response helped your team, and we’ll be sure to pass your thanks on to Jin. We look forward to working with you again.
Michael Q.
Professional and in time
Response from CovalentOct 21, 2026
Thank you for your feedback, Michael. We’re glad our team provided professional, timely service. We appreciate your choosing Covalent and look forward to supporting your future testing needs.
Yang D.
Very detailed results with clear explanation (NMR test).
Response from CovalentOct 21, 2026
Thank you for sharing your feedback. We’re glad the NMR results were detailed and clearly explained. We appreciate your trust in Covalent and look forward to supporting your future testing needs.
Uche U.
It was nice having you work on our samples. Your services are excellent and highly professional.
Response from CovalentSep 30, 2026
Thank you for sharing your feedback! We’re glad you had a positive experience working with our team. We appreciate your trust in Covalent and look forward to supporting your future projects.
Sam V.
Report was excellent.
Response from CovalentSep 30, 2026
Thank you for your feedback, Sam! We’re glad you were pleased with the report. We appreciate you choosing Covalent and look forward to supporting your next project.
Norman C.
Results turnaround was a great service. Communication was great. Account set up was a very troublesome process despite payment term is by credit card. And Sales team feels like responding to a bot (no names, unknown person behind the email).
Response from CovalentSep 30, 2026
Thank you for your feedback, Norman. We’re glad you were pleased with the turnaround time and communication, and we’re sorry for the difficulties with account setup and the impersonal sales correspondence. Shivesh and Naima, our VP of Commercial & Project Operations, will reach out to you directly to discuss your concerns and help ensure a smoother, more personal experience moving forward.
Lily Y.
Work together with the customer for the optimized setup and measurement of the samples. Fast response in quotation to meet customer's demand.
Response from CovalentAug 31, 2026
Thank you so much for the kind words! Collaboration is at the heart of how we work: taking the time to understand your specific samples and measurement goals leads to better results for everyone. We're glad the quoting process was smooth and timely too. We look forward to supporting your future characterization needs!Thank you so much for the kind words! Collaboration is at the heart of how we work: taking the time to understand your specific samples and measurement goals leads to better results for everyone. We're glad the quoting process was smooth and timely too. We look forward to supporting your future characterization needs!
Menggang L.
advanced test technology, people's knowledge, fast response and modest attitude.
Response from CovalentAug 20, 2026
Thank you for your kind review! We’re glad you appreciated our advanced testing technology, knowledgeable team, fast response, and professional approach. We look forward to supporting your future material characterization needs.