News: LEDs
19 October 2026
Visium appoints Jason DiBona as CEO
Visium of West Palm Beach, FL, USA has appointed veteran air quality executive Jason DiBona as CEO.
Visium is focused on creating healthier indoor living and working environments by deploying far-UVC light of about 230nm wavelength. UVC light (specifically far-UVC, in the 200–230nm wavelength range) acts as a powerful germicidal tool to inactivate airborne and surface pathogens (i.e. viruses and bacteria such as Influenza A, MRSA, SARS CoV-2, and Candida auris). However, unlike conventional UVC, far-UVC is considered to be safe to humans for continuous use in occupied spaces.
Through Ithaca, NY-based Visium Ultralabs, the firm is developing far-UVC LEDs based on ultra-wide-bandgap aluminium gallium nitride/gallium nitride (AlGaN/GaN) heterostructures grown in-house by metal-organic chemical vapor deposition (MOCVD), pushing III–nitride light emitters to some of the shortest wavelengths achievable.
DiBona joins Visium as it enters its next phase of growth, with rising demand for continuous, science-backed indoor air and surface protection across commercial real estate, healthcare, education, sports, and other sectors.
Picture: Visium’s CEO Jason DiBona.
DiBona has more than 25 years of leadership experience spanning medtech, health sciences, and global business operations. Most recently he was CEO of Molekule, where he advanced its mission to make clean, healthy air accessible to everyone and advanced its vision of indoor air quality as a foundational pillar of well-being. Earlier in his career, he held senior leadership roles at global health and technology companies, guiding organizations through transformation, market expansion, and innovations that improved lives at scale.
Throughout his career, DiBona has worked at the intersection of healthcare, technology and the built environment. He serves as a commissioner on the International WELL Building Institute’s Global Commission on Healthy Indoor Air, joining leaders from around the world working toward a shared vision for healthier indoor environments for everyone, everywhere.
“Once people understand the power of far-UVC to continuously inactivate airborne viruses in occupied indoor spaces, the question I hear most often is: Why isn’t this everywhere?” says Visium’s co-founder Matt Higgins. “That is the ambition behind bringing Jason to Visium. He has the rare combination of consumer experience, deep expertise in indoor health technology, and the ability to translate complex science into something people can understand and embrace. He is exactly the leader we need to take far-UVC from the laboratory into living rooms, classrooms, workplaces and every other space where people gather,” he adds. “We should not have to wait for the next pandemic to build a more resilient society. Under Jason’s leadership, our goal is to make this technology part of the infrastructure of everyday life.”
DiBona succeeds Visium’s co-founder & CEO John Rajchert, who has led the firm since its formation. Rajchert will remain actively involved as adviser, working with DiBona and the leadership team to support the company’s continued growth and to accelerate breakthrough developments of next-generation far-UVC LEDs from semiconductor research at Visium UltraLabs.
Visium hires Mayank Bulsara as executive VP, business development & strategy
Visium has appointed Mayank Bulsara as executive VP, business development and strategy for Visium Ultralabs. He will enable Visium’s advances in ultrawide-bandgap semiconductor science and technology for commercial deployment, helping the company to take its far-UVC technology from proven, revenue-generating use today toward broader adoption.
“Mayank brings global experience working with every aspect of new technology introduction, deployment and scaling, which is exactly what we need as we move from stealth to scale,” says CEO Jason DiBona. “He has already made an impact building relationships with prospective partners and helping shape how we bring our technology to market,” he adds.
“Bringing Mayank on is a direct investment in Visium's mission of making safer indoor environments a standard feature of modern life,” says co-founder John Rajchert. “His global experience taking new technologies from introduction through deployment and scaling, and his eye for building the right partnerships, are exactly what we need as we take our advanced-materials platform from a proven biosecurity business today to the broader opportunities ahead.”
Bulsara’s focus is on enabling Visium’s advances in ultrawide-bandgap semiconductor science and technology for commercial deployment, building the partnerships and business relationships that help move the firm’s innovations from the lab to the market. He will also work closely with Visium’s science and engineering teams as the company develops its far-UVC LED technology, which is manufactured within the sub-235nm far-UVC band and is designed for continuous, human-safe pathogen elimination, inactivating up to 99.9% of airborne pathogens in minutes, in hospitals, healthcare facilities, and other occupied spaces.
“Visium is at an inflection point, with breakthrough far-UVC LED technology and a growing set of partnership opportunities in front of it,” comments Bulsara. “I'm excited to bring my global experience across new technology introduction, deployment and scaling to help take this technology from the lab to the market and help make safer indoor environments a standard feature of modern life.”
Bulsara joins Visium after a career in technology commercialization, business development and strategy, most recently at Nippon Sanso. He has global experience working with every aspect of new technology introduction, deployment, and scaling.
Visium’s US-made ultrawide-bandgap semiconductor platform uses AlGaN/GaN heterostructures that enable both far-UVC LEDs and, longer term, high-electron-mobility transistors (HEMTs) for RF and power electronics, giving the firm room to grow beyond disinfection applications. The AlGaN/GaN materials platform is directly relevant to power management and high-speed communications chips.
