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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
client focusb2btechnologyHardwaretechnologyDeep Techbusiness modelManufacturingsectorOptical TechnologysectorSpinoutsectorDT and LSsectorUKis Digital and technologiessectoruk is8 digital and technologiessectorUKSUsectorUKSU2010sectorscience-basedindustryTelecomindustrySemiconductors

Valuation & funding

Lumenisity funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
ACQUISITIONExit Dec 2022 $0 Microsoft
SERIES CEquity / VC Jul 2021 $6.6M $26M Parkwalk Advisors
EARLY VCEquity / VC Oct 2020 $9.9M $40M Parkwalk Advisors · Business Growth Fund
GRANTOther financing Jun 2018 $449K Undisclosed
SPINOUTOther financing Jan 2017 $0 University of Southampton
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Financials

Workforce over time

Available workforce history. Financial fields without reported data are omitted.

YearEmployees
2026 7
2025 7
2024 66
2023 66
2022 66
2021 50
2020 37
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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.

Latest monthly visits540 3-month web change-82.6% 1-year team growth0%
Monthly website visits37 observations · Feb 2020–Oct 2025
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Comparisons

Lumenisity compared with similar companies

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Talent graph

Lumenisity's talent

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Team profiled 5 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 1 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

5 investors on Lumenisity's cap table

Sourced from Dealroom's funding and investor records. Investor profile links are shown where available.

Series A 2 investors entered at this stage
Business Growth Fund
Parkwalk Advisors
Other known 3 additional known investors
Microsoft
University of Southampton
University of Bristol Enterprise Fund

Global footprint

Where Lumenisity has talent and traffic

Workforce by country
1 countries with
team presence
🇬🇧 United Kingdom100%
1 country shown

In the news

Latest news about Lumenisity

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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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