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Lumenisity

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Lumenisity is developing advanced cable solutions to address the need for massive bandwidth increases in high capacity

Chilworth, United KingdomFounded 2017Semiconductors
Valuation $50–100M Last recorded · 2020
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Lumenisity and the history behind them.

About Lumenisity

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.

Source: Dealroom company data

At a glance

Status
Acquired
Founded
2017
Headquarters
Chilworth, United Kingdom
Employees
7
Open positions
None listed
Dealroom signal
57.1/100
Industry
Telecom, Semiconductors
Sector
Semiconductors, Optical Technology, Spinout, DT and LS, UKis Digital and technologies, uk is8 digital and technologies, UKSU, UKSU2010, science-based
Technology
Hardware, Deep Tech
Business model
Manufacturing
Client focus
b2b

Funding history

5 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
ACQUISITION✓Exit Dec 2022 $0 — Microsoft ↗
SERIES CEquity / VC Jul 2021 $6.6M $26M Parkwalk Advisors —
Showing the latest 2 of 5 recorded eventsBook a demo for the full funding history →

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%
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Similar companies

Closest operating peers by Dealroom taxonomy

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Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

5 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A2 investors entered at this stage

  • Business Growth Fund
  • Parkwalk Advisors

Other known investors3 additional known investors

  • Microsoft
  • University of Southampton
  • University of Bristol Enterprise Fund
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.

Global footprint

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

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Lumenisity on X, ranked by likes and reposts, corporate channels excluded.

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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