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Phasecraft

Other B2B Software · London, United Kingdom · Founded 2018

Quantum algorithms accelerating real-world computational applications MoreLess

Phasecraft operates at the intersection of academic theory and commercial application in the quantum computing sector, focusing on the development of high-efficiency quantum algorithms. Founded in 2019 as a spin-out from University College London (UCL) and the University of Bristol, the company was established by three distinguished quantum scientists: Professor Ashley Montanaro, who serves as CEO; Professor Toby Cubitt, the CTO and Chief Science Officer; and Professor John Morton. Their collective journey stems from extensive academic careers, with each founder having over 20 years of research experience in quantum computation, quantum information theory, and mathematical physics. The decision to create a startup was driven by the realization that quantum hardware was advancing to a point where it could move beyond experimental stages, creating a pressing need for sophisticated software to harness its power for practical problems.

The company's core business is to design quantum algorithms that significantly reduce the hardware requirements—such as the number of qubits and circuit depth—needed to solve complex problems, thereby accelerating the timeline to achieving quantum advantage. Phasecraft's revenue model is centered on partnerships with both quantum hardware manufacturers and companies in various industries that stand to benefit from quantum computation. By collaborating with hardware leaders like Google, IBM, Rigetti, Quantinuum, and QuEra, Phasecraft gains access to the most advanced quantum processors to test and refine its algorithms. This positions them to co-develop solutions for enterprise clients in sectors like materials science, pharmaceuticals, and telecommunications. Their clients are companies facing computational challenges that are intractable for even the most powerful classical supercomputers, such as discovering new materials for batteries and solar cells or optimizing complex networks.

Phasecraft's primary offering is its intellectual property in the form of novel quantum algorithms. These algorithms are engineered to perform specific, high-value computational tasks with greater efficiency than existing methods. For example, their work has demonstrated the ability to reduce the complexity of simulating a materials system by a factor of 400,000 and has resulted in the largest-ever materials system simulation on actual quantum hardware. A notable product of their research is an algorithm named THRIFT, which improves the efficiency of simulating dynamic quantum systems by a factor of 10, allowing for simulations on near-term hardware that are significantly larger and longer-running. This focus on making today's 'noisy,' intermediate-scale quantum computers useful is a key differentiator, bridging the gap between current hardware limitations and future fault-tolerant machines. The company has secured significant funding, including a £13m Series A round, to expand its world-class team and further its research.

Keywords: quantum algorithms, quantum software, quantum advantage, materials discovery, quantum simulation, computational chemistry, quantum computing applications, near-term quantum computers, hardware-efficient algorithms, quantum IP, spin-out, UCL, University of Bristol, Ashley Montanaro, Toby Cubitt, John Morton, condensed matter physics, clean energy, solar cells, battery materials, pharmaceutical research, network optimization, Google Quantum AI, IBM Quantum, Rigetti, Quantinuum, QuEra

Company overview

Phasecraft company information

The essential company record, classifications and operating signals in one place.

Status
Operational
Founded
2018
Headquarters
London, United Kingdom
Employees
51
Open positions
6
Dealroom signal
90.4
client focusb2btechnologyDeep TechtechnologyQuantum Technologiesbusiness modelSaaSsectorQuantum ComputingsectorSpinoutsectorQuantum Computing SoftwaresectorFuture of ComputingsectorHard TechsectorNIF defense security and resiliencesectorNIF quantumsectorslush24sectorNIF Security of Critical TechnologiessectorDT and LS

Valuation & funding

Phasecraft funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
GRANTOther financing Jan 2026 $462K UK Research and Innovation
SERIES BOther financing Sep 2025 $33M $133M Novo Holdings · Playground Global · Plural
GRANTOther financing Feb 2024 $1.6M Undisclosed
SERIES AOther financing Aug 2023 $17M $69M London Co-Investment Fund · Parkwalk Advisors · Playground Global · Episode 1 Ventures
GRANTOther financing Jan 2022 $488K Undisclosed
SEEDOther financing Dec 2020 Parkwalk Advisors · Episode 1 Ventures · UCL Technology Fund · AlbionVC
GRANTOther financing 2020 Undisclosed
SEEDOther financing May 2019 Parkwalk Advisors · UCL Technology Fund · AlbionVC
SPINOUTOther financing Feb 2018 University of Bristol · University College London
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Financials

Revenue and workforce over time

Available revenue and workforce history. Fields without reported data are omitted.

YearRevenueGrowthEmployees
2026 $2.4M 0% 51
2025 $2.4M 0% 43
2024 $2.4M 0% 35
2023 $2.4M +100% 28
2022 $1.2M +23.1% 17
2021 $975K 14
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Growth signals

Phasecraft website traffic

Latest recorded traffic for Phasecraft is 8.5K monthly website visits, up 63.5% over the last three months. Phasecraft's team grew 18.6% over the past year.

Latest monthly visits8.5K 3-month web change+63.5% 1-year team growth+18.6%
Monthly website visits93 observations · Oct 2018–Jul 2026
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Hiring

Open positions at Phasecraft

Current openings linked to this company in Dealroom.

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Comparisons

Phasecraft compared with similar companies

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Talent graph

Phasecraft's talent

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Team profiled 12 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 4 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

12 investors on Phasecraft's cap table

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

Seed 6 investors entered at this stage
AlbionVC
Parkwalk Advisors
UCL Technology Fund
LocalGlobe
Episode 1 Ventures
UK Research and Innovation
Series A 4 investors entered at this stage
Playground Global
London Co-Investment Fund
Plural
Novo Holdings
Other known 2 additional known investors
University College London
University of Bristol

Global footprint

Where Phasecraft has talent and traffic

Workforce by country
5 countries with
team presence
🇬🇧 United Kingdom75.6%
🇺🇸 United States17.1%
🇨🇦 Canada2.4%
🇩🇰 Denmark2.4%
🇩🇪 Germany2.4%
5 countries shown

In the news

Latest news about Phasecraft

Recent press, funding announcements, and product moves mentioning Phasecraft — open to read from the original sources.

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Market sentiment

What the market is saying about Phasecraft

An AI-synthesized read of the highest-engagement posts about Phasecraft 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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