For many years, quantum computing was little more than a weird, niche lab project that investors read about, but that relatively few bought into.

Here are five I think deserve a spot on your quantum computing stock list heading into 2027, with what each company is doing and where the trouble spots are.

Quantum Computing Quantum Computing Inc.(NASDAQ: QUBT)started as a small software operation, but it's a much different business now.

It describes itself as the first publicly traded pure-play photonic quantum computing company.

It is the first European quantum computer maker on a major U.S. exchange.