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Phasecraft writes quantum computing software and algorithms that help researchers and hardware partners solve hard problems in materials science and chemistry.
Phasecraft is a quantum software company. It doesn't build quantum computers itself. Instead, it writes the algorithms and software that tell those machines what to do, mainly for problems in materials science and chemistry, where simulating how molecules and materials behave is famously hard.
The core idea is that quantum computers, once they're powerful enough, should be much better than ordinary computers at simulating nature at the tiny scale where chemistry happens. That matters for designing better batteries, catalysts, semiconductors, and drugs. Phasecraft's job is to figure out the cleverest, most efficient ways to run those simulations on real, imperfect quantum hardware, so that the machines spend their limited power on the actual problem rather than on wasted steps. Its customers are researchers and the companies building quantum computers. Phasecraft works alongside hardware makers and academic and industrial research groups, selling them algorithms and software rather than a physical product. The company grew out of academic research in London and Bristol.
The honest catch: this is a bet on the future. Today's quantum computers are still small and error-prone, so the market for quantum software is young and the payoff is years away. Phasecraft is essentially building the tools now for machines that will be good enough later, which makes it a research-heavy, long-horizon business rather than one with steady revenue today.
Saved answer · last researched 15 Nov 2026