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We Are the Tissue Sectioning Experts

Precisionary Instruments help scientists and clinicians around the world achieve their goals—and advance science—through the use of our incredibly precise and consistent vibratomes and sectioning tools. Meet our team and explore our history.

A New Cutting Edge in 
Tissue Slicing Instrumentation

Precisionary is a globally-recognized manufacturer and innovator in the field of tissue sectioning equipment. Our Compresstome® vibrating microtomes bring revolutionary speed, stability and consistency to labs and experimental applications across corporations and universities. We didn’t invent tissue sectioning, we just sharpened it.

1 millions+ successful experiments

1,000+ published references

Find Out Why Scientists Everywhere
Trust Precisionary

Scientists worldwide use Precisionary for tissue slicing, but sometimes, seeing is believing. If you want to see Precisionary Instruments in action, our team can connect you with scientists in your area.

Let Us Put You In Touch

Click the map to find out where Precisionary Instruments are hard at work in labs around the world.

Leadership Team

We’re a close team of scientists, engineers and customer advocates completely dedicated to advancing tissue sectioning—from the user-friendliness, precision and consistency of the tools to the quality and results of the experiments they facilitate.

George Kong

George Kong

CEO
Abby Chu

Abby Chu

Chief Scientific Officer

Sam Moss

Lead Mechanical Engineer

Company History

June 1, 2004

Precisionary Instruments Launches

Precisionary Instruments was founded in 2004 by Dr. Jian-Qiang Kong, Ph.D, the creator and inventor of the Compresstome® tissue slicer. Dr. Kong worked in academic research, producing fresh brain tissue slices for patch-clamp electrophysiology experiments. At the time, he was using a traditional vibratome. Through these experiments Dr. Kong found that his produced sections had increasingly inconsistent slice thicknesses, were thicker at the slice edge, and had vibration artifacts that no amount of vibratome settings could fix. He was not producing the superior quality sections he needed for his research and at the time, there were not many options to change this. Dr. Kong was passionate about making the difference he wanted to see in his produced sections and began brainstorming ideas. As a result, he founded Precisionary Instruments to help meet those needs.

June 1, 2005

Invention of Auto Zero-Z® Technology

Dr. Kong knew the Compresstome® tissue slicers had room for improvements and continued to work to invent the patented Auto Zero-Z® technology for them. He found that with traditional vibratomes, it was cumbersome to manually adjust and calibrate the vibrating head unit before every experiment. Why couldn’t the tissue slicer do that itself? With the Compresstome®, they can! Dr. Kong updated his original Compresstome® slicers to invent both the VF-200-0Z and VF-300-0Z models. Our patented Auto Zero-Z® is equipped on all models ending in “-0Z” and involves the z-axis deflection (Auto Zero-Z®) built directly into the vibrating head units during manufacturing. This means the user does not need to calibrate the machine every time they use it and so the produced slices are consistent, even throughout, and free of vibration artifacts.

June 1, 2018

Compresstome® VF-210-0Z & VF-310-0Z Released

Fast forward 14 years later, and Dr. Kong’s work on the legacy line of Compresstome® tissue slicers inspired our expert engineering and sales team to invent the updated versions of the VF-200-0Z and VF-300-0Z models. With the valuable feedback from our customers, Precisionary Instruments worked to produce an even more user-friendly version of the Compresstome® Vibrating Microtome, and the VF-210-0Z and VF-310-0Z models were born! Keeping the original mode of cutting, protocol for preparing the tissue sample, and of course the patented compression technology and Auto Zero-Z® capability, the Compresstome® tissue slicer continues to produce the superior quality sections for a variety of research needs.

January 1, 2022

Compresstome® VF-500-0Z Released

We officially launched our newest Compresstome® model, the VF-500-0Z vibrating microtome. This fully automatic tissue slicer takes the best components of both the Legacy line of Compresstome® models combined with the ease-of-use features of the VF-310-0Z.

November 1, 2022

Compresstome® VF-510-0Z Released

Most recently, the Compresstome® VF-510-0Z vibrating microtome was launched. This fully automatic tissue slicer takes the best components of both the VF-500-0Z and VF-310-0Z models, and combines it into one easy-to-use vibratome. This is our recommended model for electrophysiology experiments, although like all Compresstome® models, has the ability to cut a wide range of tissue organ types for a variety of slicing needs. 

Today and beyond

No matter your experimental or personal preferences, Precisionary Instruments has the Compresstome® vibrating microtome to produce the high-quality sections you are looking for. Combined with our expert engineers and superb scientific sales consultants, our team is here to assist you before, during, and after the purchasing process to ensure you are producing the best slices possible for your slicing needs. We are happy to help!

Science is a team game. We take pride in being more than just a manufacturer to our customers, providing guidance and assistance from multiple perspectives. Here's what you can count on us to be when you partner with Precisionary.

Your Sounding Board

We’re here to listen and help. Our team is dedicated to providing experimental support that fits your unique needs. Whether you’re facing a complex challenge or just need some guidance, think of us as your trusted advisors, ready to empower your research journey.

Your Scientific Collaborator

Collaboration is at the heart of what we do. We believe that the best innovations come from working together, sharing ideas, and building on each other’s expertise. When you partner with us, you’re not just getting a supplier; you’re gaining a teammate committed to driving progress and enhancing your research.

Your Lab Assistant

Got a question or a problem in the lab? We’ve got your back. Our team is quick to respond to your inquiries about lab challenges and instruments. We’re here to provide you with practical solutions, so you can focus on what you do best: advancing science.

Your Mentor

We believe in the power of mentorship. We love sharing knowledge and furthering skill development within research teams. By creating a supportive environment, we help nurture talent and inspire the next generation of innovators and discoverers.

Your Concierge

When it comes to customer service, we don’t cut corners. We know how important your equipment is, which is why we offer fast turnaround times on repairs and comprehensive warranty programs. With us, you can rest easy knowing that your instruments are in good hands, allowing you to focus on your work without worries.

Your R&D Partner

Your feedback is our north star. It’s what inspires us and helps us better shape our products. Together, we can cultivate innovation and push the boundaries of tissue sectioning technology, making your work easier and more effective.

Your Colleague

We’re in this together. Committed to advancing scientific research, overcoming your challenges and goals, and striving to drive meaningful innovations that elevate your research capabilities and contribute to the broader scientific community.

Let’s Talk About Your Sectioning Needs

We specialize in helping scientists improve their sectioning workflows and results. Tell us a little about your experiment needs and we’ll get back to you within one business day.

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George Kong CEO

George Kong is the CEO and co-founder of Precisionary Instruments, a leading innovator in tissue sectioning for life science research,, drug development, and diagnostics. Together with his father, the inventor of the company’s patented vibrating microtome, the Compresstome, George has helped establish the company’s global impact on scientific research and healthcare.

With a background in computer science and business strategy, George has extensive leadership experience across high-tech and life sciences sectors. He has held key roles in startups and multinational companies in big data and AI in both the U.S. and China. Known for building agile, cross-functional teams, George excels at bridging business and technical communication across cultures to achieve success for the companies he’s leading and customers he is serving. 

George holds a B.S. and M.S. in Computer Science from Brown University and an MBA from UC Berkeley’s Haas School of Business. With a deep focus on innovation and execution, George is committed to Precisionary’s contributions to advancement in global health sciences.

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Abby Chu Chief Scientific Officer

Abby Chu is a dedicated scientific leader with over 20 years of laboratory research experience in neuroscience, electrophysiology, and biology. She earned her MD-PhD from the prestigious Harvard-MIT joint program and trained under Nobel Laureate Prof. Dr. Erwin Neher, the inventor of patch-clamp electrophysiology, at the Max Planck Institute in Germany. Her training deepened her expertise in advanced research techniques, particularly in experimental planning and protocol development.

Since 2016, Abby has served as Chief Scientific Officer at Precisionary Instruments, where she has helped grow the company into a leading provider of biotech and health science solutions. A key aspect of Abby’s work is her one-on-one engagement with scientists and customers, offering hands-on experimental guidance. She assists researchers in designing protocols, planning experiments, and troubleshooting technical challenges, ensuring they get the most out of their studies. Whether it’s overcoming grant-related hurdles or solving complex technical issues in the lab, Abby’s collaborative approach and scientific expertise provide invaluable support to the researchers Precisionary Instruments serves.

Her commitment to mentorship and advancing scientific discovery ensures that every customer benefits from a personalized experience, making Precisionary Instruments a trusted partner for laboratories worldwide.

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Sam Moss Lead Mechanical Engineer

Sam Moss is the Lead Mechanical Engineer at Precisionary Instruments, where he designs state-of-the-art tissue slicers used by scientists worldwide. He also oversees the manufacturing process of the company’s vibratomes, ensuring they are built to the highest standards of quality and precision.

Driven by a love for all things mechanical, Sam enjoys restoring vintage cars, repairing espresso machines, and finding creative ways to make broken items functional again. His enthusiasm for machinery fuels his innovative approach to developing cutting-edge slicers and improving the performance of existing models.

Sam earned a B.S. in Mechanical Engineering from the University of Massachusetts – Amherst and brings valuable experience in medical device development to his role at Precisionary Instruments. He thrives in a collaborative environment, contributing to a team dedicated to helping scientists make groundbreaking discoveries and advance their research.