Lumenisity, a privately owned UK-based company founded in 2017, provides broadband aggregation and home network solutions. Employing approximately 70 people, the company's core product is hollowcore fibre optic cable. In 2023, Lumenisity reported revenues of approximately $10 million. Microsoft is listed as a parent company.
Researchers from Lumenisity, a company acquired by Microsoft in 2022, and the University of Southampton’s Optoelectronics Research Center developed a hollow-core fiber with record-low optical loss, as published in Nature Photonics. This team also created a cable with the lowest signal delay ever recorded in fiber optics. Another team built a hollow-core cable with the lowest signal loss ever recorded in any optical fiber. On September 1st, 2025, researchers further reduced attenuation and signal degradation in next-gen hollow core fiber broadband cables, boosting speeds by 45%. These advancements in hollow optical fiber technology promise to increase data transmission capacity over longer distances.