About Quantum Exponential
Quantum Exponential is a venture capital firm founded in 2021. It is primarily based out of London, United Kingdom. As of Aug 2026, Quantum Exponential is an active investor, having invested in 9 companies, with 2 new investments in the last 12 months. It primarily invests in Seed round in United Kingdom based startups. Its investments are spread across a wide range of sectors from High Tech to Enterprise Applications and Semiconductors. Most recently it participated in the $***** Seed round of Singular Photonics Overall, Quantum Exponential portfolio has seen 1 IPO, namely Arqit. A lot of funds co-invest with Quantum Exponential, with names like Scottish Enterprise sharing a substantial percentage of its portfolio. Quantum Exponential has team of 12 people including 1 partners.Key Metrics
Team Members
Portfolio Sectors
Portfolio Locations
Rounds of Entry
Seed & Series A
Portfolio IPOs
Portfolio Soonicorns
Deals in last 12 months
Quantum Exponential's List of Top Investments
Quantum Exponential has a portfolio of 9 companies. Their most notable investments are in Siloton and Universal Quantum.Their portfolio spans across and United Kingdom. They have invested in High Tech, Enterprise Applications, Semiconductors and 3 other sectors, across stages such as Seed, Series A stages. Here is the list of top investments by Quantum Exponential:1. QLM
Provider of quantum sensing technology for natural gas leak detection. It allows users to detect gas from wellheads and pipeline transportation activities. It can also be used with a drone. It has applications in oil and gas, industrial, biogas, and agricultural emission monitoring systems.
Key facts about QLM
- Founded Year: 2017
- Location: Paignton (United Kingdom)
- Stage: Series A
- Total Funding till date: $23.4M
- Employee Count: 39 as on Aug 31, 2026
- Investors: Enterprise 100, Seraphim and 17 Others
- Latest Funding Round: Series A, Nov 21, 2025, $*****
- Highlight: Editors' Pick
2. Oqc Tech
Developer of quantum computing hardware for commercial and research applications. These systems function as co-processors integrated with classical computing infrastructure to perform complex calculations. The hardware architecture utilizes physical qubits to execute gate operations for computational tasks. Access to these systems is provided through cloud environments and direct deployment within data centers. The technology supports the development of algorithms for various technical and scientific fields.
Key facts about Oqc Tech
- Founded Year: 2017
- Location: Reading (United Kingdom)
- Stage: Series C
- Total Funding till date: $500M
- Employee Count: 159 as on Aug 31, 2026
- Investors: Lansdowne Partners, Oxford Science Enterprises and 22 Others
- Latest Funding Round: Series C, Jun 03, 2026, $*****
- Highlight: Editors' Pick
3. Aegiq
Provider of quantum photonics hardware for communications. It develops satellite and fibre-based quantum key distribution technology for cybersecurity applications. It also develops a photonic platform that entangles quantum computing nodes, and enables quantum resource distribution. It provides broadband quantum communication, imaging and microscopy, and scalable quantum computing systems.
Key facts about Aegiq
- Founded Year: 2019
- Location: Sheffield (United Kingdom)
- Valuation: $*****
- Stage: Seed
- Total Funding till date: $4.8M
- Employee Count: 19 as on Feb 28, 2025
- Investors: Deepbridge Capital, HTGF and 9 Others
- Latest Funding Round: Seed, 2023, $*****
- Highlight: Editors' Pick
Developer of quantum computers. It provides mild cooling technology, trapped ion qubits, electronic quantum gates, silicon microchip modules, electric field ink modularity, and practical engineering systems. It has partnered with Hoxton Ventures, Village Global, Luminous ventures, Propagator ventures, and Innovate UK.
Key facts about Universal Quantum
- Founded Year: 2018
- Location: Brighton (United Kingdom)
- Annual Revenue: £10M - £50M as on Dec 31, 2024
- Stage: Seed
- Total Funding till date: $5.06M
- Employee Count: 103 as on Aug 31, 2026
- Investors: Nauta Capital, In-Q-Tel and 14 Others
- Latest Funding Round: Grant (prize money), Nov 02, 2022, $*****
- Highlight: Editors' Pick
5. Arqit
Provider of quantum-safe encryption solutions for data protection across networks. The company offers software designed to protect data against threats during network transit. Its solutions are compliant with frameworks and integrate with OEM vendors. The software is cloud-based, scalable, and offers endpoint management. It secures devices and infrastructure with security that aligns with standards. The company's approach includes cryptographic agility, simplicity, and compliance.
Key facts about Arqit
- Founded Year: 2017
- Location: London (United Kingdom)
- Stage: Public
- Employee Count: 105 as on May 31, 2026
- Investors: Seraphim, Generation Space and 7 Others
- Latest Funding Round: Post IPO, May 12, 2021, $*****
- Highlight: Public
Quantum Exponential's Year-on-Year Investment Trends
Quantum Exponential has invested in 9 companies over the last 4 years, with an average of 1 new investment annually in the last 3 years. As of Aug 2026, it has made 2 investments in this year. Its most recent first time investment was in Singular Photonics and most recent follow-on round was in Aegiq.Year | No. of Investments | ||
|---|---|---|---|
1st Round | Follow-on | Total | |
2026 (YTD) | 2 | 0 | 2 |
2025 | 0 | 0 | 0 |
2024 | 0 | 0 | 0 |
2023 | 2 | 0 | 2 |
2022 | 4 | 1 | 5 |
Quantum Exponential's Investments by Stage
Quantum Exponential has made 6 investments in Seed stage with an average round size of $1.83M and 2 investments in Series A stage with an average round size of $7.85M.Stage of entry | No. of Investments |
|---|---|
Seed | 6 |
Series A | 2 |
Note: We have considered here, only first round of investments
Quantum Exponential's Investments by Sector
Quantum Exponential has a diverse portfolio, with companies operating in the High Tech, Semiconductors, Enterprise Applications, Energy Tech and Enterprise Infrastructure. Notably, it has invested in 8 Enterprise (B2B) companies, 8 Tech companies, 7 Tech hardware companies and at least 5 companies focusing on Software.Sector | No. of Investments |
|---|---|
High Tech | 7 |
Semiconductors | 3 |
Enterprise Applications | 2 |
Energy Tech | 1 |
Enterprise Infrastructure | 1 |
Others | 1 |
Note: We have considered here, only first round of investments
Quantum Exponential's Investments by Geography
Quantum Exponential has made most investments in United Kingdom (8).Quantum Exponential's recent investments
Quantum Exponential has made 2 investments in 2026 so far - Singular Photonics and QuantCore.Here are the most recent investments by Quantum Exponential:
Filter this listDate | Company | Location | Round Details | Round Amount | Co-Investors |
|---|---|---|---|---|---|
Aug 19, 2026 | United Kingdom | Seed | 6351 | [+4] | |
Feb 24, 2026 | United Kingdom | Seed | 2259 | [+2] | |
Jul 12, 2023 | United Kingdom | Seed | 5739 | [+3] | |
Feb 03, 2023 | United Kingdom | Series A | 8235 | ||
Aug 04, 2022 | United Kingdom | Series A | 6634 | [+6] |
IPOs and Publicly Listed companies in Quantum Exponential's Portfolio
1 of Quantum Exponential's portfolio company became public - Arqit. It got listed on the National Association of Securities Dealers Automated Quotations (NASDAQ), in Sep 2021 at marketcap of undefinedHere are Quantum Exponential's portfolio companies that went public:
Company | IPO Date | First Invested on | First Round of Investment | Round Size |
|---|---|---|---|---|
Sep 07, 2021 | - | - | 9779 |
Team profile of Quantum Exponential
Quantum Exponential has a team of 12 members including 1 Partner and 1 Principal located in United Kingdom. Quantum Exponential's team does not sit on the board of any company as of now.Co-investors of Quantum Exponential
Over the past 4 years, 60 investors have co-invested in Quantum Exponential's portfolio companies. This includes funds and angels.
- Invested before Quantum Exponential: Ukri, Enterprise 100 and 20 others have invested in rounds before Quantum Exponential. There are 2 companies where Ukri has invested before Quantum Exponential and 1 company where Enterprise 100 has invested before Quantum Exponential.
- Top Co-investors of Quantum Exponential: 15 investors entered a company along with Quantum Exponential. These include investors like Scottish Enterprise (2 companies).
- Invested after Quantum Exponential: A total of 23 investors have invested in Quantum Exponential's portfolio after their investments. Top Investors include Ukri (2 companies), The FSE Group (1 company) and SBI Investment (1 company).
Recent News related to Quantum Exponential
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Singular Photonics Raises €1.85 Million to Advance Next-Generation SPAD Image SensorsStartup Rise EU•Aug 19, 2026•ACF Investors, Singular Photonics, Wren Capital, Scottish Enterprise and 2 others
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£100m fund for quantum hooks up with Harwell ClusterElectronics Weekly•Nov 25, 2025•Quantum Exponential, Harwell Campus
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Quantum Exponential Proposes To Delist From Aquis ExchangeMorningstar•Feb 26, 2024•Quantum Exponential
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Delta g raises £1.5 million to commercialise its quantum sensorsTech.eu•Jul 14, 2023•Delta g, Science Creates, Newable, Quantum Exponential and 1 other
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Quantum Exponential explores private limited partnershipMorningstar•Mar 20, 2023•Quantum Exponential
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Cardiff Based Tech Firm Receives Significant InvestmentBusiness News Wales•Aug 16, 2022•, Enterprise 100, Development Bank of Wales, Quantum Exponential and 3 others
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QLM closes Series A round at GBP 12 millionVcbay News•Aug 06, 2022•QLM, Green Angel Syndicate, SLB, Enterprise 100 and 3 others
