L
Lumenisity
Semiconductors · Chilworth, United Kingdom · Founded 2017
Lumenisity is developing advanced cable solutions to address the need for massive bandwidth increases in high capacity MoreLess
Lumenisity Limited, now a part of Microsoft, originated as a spin-out from the University of Southampton's Optoelectronics Research Centre (ORC) in 2017. The company was established to commercialize more than a decade of research into hollowcore optical fibre (HCF). The founding team consists of academics Professor David Richardson, Professor Francesco Poletti, and Professor Marco Petrovich, who developed the technology at the ORC, alongside seasoned executive Dr. David Parker, who served as Chairman and CEO. Dr. Parker, a physicist and engineer with a Ph.D. from Imperial College, brought extensive experience in leading international photonics businesses and scaling early-stage technology companies.
Lumenisity specializes in the design and manufacture of advanced HCF solutions. The company's core product is a cable where light signals propagate through an air-filled central core instead of a traditional solid glass core. This architecture allows data to travel approximately 47-50% faster, significantly reducing latency. The primary business involves providing these high-performance cables to clients with stringent latency and security needs. The target market includes sectors such as financial services, healthcare, government, retail, and manufacturing, along with network operators and cloud infrastructure providers. In December 2022, Microsoft acquired Lumenisity to optimize its global cloud infrastructure, particularly for Azure customers, and to accelerate innovation in networking.
The company's key technology is its proprietary Nested Anti-Resonant Nodeless Fibre (NANF), marketed under the CoreSmart® brand. This design offers several advantages over conventional solid fibres, including not only lower latency but also enhanced security, increased bandwidth, and higher power handling capabilities. A later evolution, known as DNANF, achieved record-low signal loss (attenuation), surpassing even standard single-mode fibres in certain optical bands. Before its acquisition, Lumenisity had secured significant funding, including a £7.5 million round in 2020, to build the world's first dedicated HCF manufacturing facility in Romsey, UK, enabling the company to scale production.
Keywords: hollowcore optical fibre, low latency, data transmission, Nested Anti-Resonant Nodeless Fibre, NANF, Optoelectronics Research Centre, Microsoft acquisition, network infrastructure, cloud computing, financial services, data centers, high-speed networking, CoreSmart, fibre optic cable, telecommunications, University of Southampton spin-out, David Richardson, Francesco Poletti, David Parker, high-capacity communications
Company overview
Lumenisity company information
The essential company record, classifications and operating signals in one place.
- Status
- Acquired
- Founded
- 2017
- Headquarters
- Chilworth, United Kingdom
- Employees
- 7
- Open positions
- None listed
- Dealroom signal
- 57.1
Valuation & funding
Lumenisity funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| ACQUISITION✓Exit | Dec 2022 | $0 | — | Microsoft | ↗ |
| SERIES CEquity / VC | Jul 2021 | $6.6M | $26M | Parkwalk Advisors | — |
| EARLY VC✓Equity / VC | Oct 2020 | $9.9M | $40M | Parkwalk Advisors · Business Growth Fund | ↗ |
| GRANT✓Other financing | Jun 2018 | $449K | — | Undisclosed | — |
| SPINOUT✓Other financing | Jan 2017 | $0 | — | University of Southampton | — |
Financials
Workforce over time
Available workforce history. Financial fields without reported data are omitted.
| Year | Employees |
|---|---|
| 2026 | 7 |
| 2025 | 7 |
| 2024 | 66 |
| 2023 | 66 |
| 2022 | 66 |
| 2021 | 50 |
| 2020 | 37 |
Growth signals
Lumenisity website traffic
Latest recorded traffic for Lumenisity is 540 monthly website visits, down 82.6% over the last three months. Lumenisity's team grew 0% over the past year.
Comparisons
Lumenisity compared with similar companies
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Talent graph
Lumenisity's talent
Source: Dealroom Talent Intelligence.
Global footprint
Where Lumenisity has talent and traffic
team presence
In the news
Latest news about Lumenisity
Recent press, funding announcements, and product moves mentioning Lumenisity — open to read from the original sources.
Market sentiment
What the market is saying about Lumenisity
An AI-synthesized read of the highest-engagement posts about Lumenisity on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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