Alice & Bob
Alice & Bob is a quantum computing startup developing fault-tolerant quantum computers using proprietary 'cat qubit' technology. The company has raised $166M in Series B funding and employs 271 people across Paris and Boston.
The growth story
Alice & Bob grew from 22 to 271 employees between 2021 and 2026, raising $166M along the way, most recently a Series B in May 2026.
About
Alice & Bob builds quantum computers focused on error correction through their patented cat qubit architecture, which they claim reduces hardware requirements by 200x compared to competitors. Their technology targets research institutions and enterprises needing high-fidelity quantum computation.
The 3-year-old startup has scaled rapidly to 271 employees and secured major funding including a recent Series B. Their technical advisory board includes Nobel laureates, signaling strong academic ties in the quantum field.
Founders and leadership
Engineering dominates the organization with 44 engineers, reflecting the deep technical focus. Leadership appears concentrated in Paris with a smaller Boston presence, typical for a European deep tech firm expanding to the US market.
The Alice & Bob org chart
Théau Peronnin (CEO and co-founder) leads 44 mapped leaders with 12 direct reports. Click +N to expand a team; names link to the person’s public profile.
Departments, and which ones grew
Headcount by function: Engineering 63 (+62% YoY), Research 33 (+57% YoY), Operations 21 (+91% YoY), Education 19 (+90% YoY), Information Technology 18 (+80% YoY), Business Development 12 (0% YoY).
Talent flow
The team draws heavily from French research institutions like CEA and Inria, with 8 hires from CEA alone. Alumni frequently move to academic roles (ETH Zürich) or quantum startups like Pasqal, showing strong industry crossover.
Most common previous employers of Alice & Bob staff: CEA (8), Inria (7), Thales (7), Dashlane (6), Ecole normale supérieure (6), EPFL (5). Former Alice & Bob employees most often moved to ETH Zürich (3), Pasqal (2), CEA (2), Datadog (2), Gates Solutions (1), Gorgias (1).
Alumni worth knowing
The Alice & Bob mafia
Alumni have founded quantum and energy startups including Isentroniq (21 employees) and Storio Energy (17 employees), indicating successful spinouts from this technical talent pool.
3Paul Magnard, was Blueprint Lead until 2024Julien Dumazert, was Team Lead until 2024Alexandre Thomas, was Software Engineer until 2025Hiring now
Open positions suggest continued expansion, particularly in engineering roles to advance their cat qubit technology.
Web traffic
Traffic mix: 33% direct, 57% search, 5% social, 0% paid.
What this company is made of
Most common skills at Alice & Bob: Python (Programming Language) (105), Project Management (69), English (67), Microsoft Office (50), MATLAB (45), Research Skills (42), C (Programming Language) (40), Teamwork (39).
Where the team actually sits
Alice & Bob people are concentrated in Île-de-France, France (84), France (32), Greater Paris Metropolitan Region (28), Auvergne-Rhône-Alpes, France (4). 2 offices on record.
Search footprint
Alice & Bob attracts about 747 organic search visits a month, traffic worth roughly $2K a month if bought through ads. It gained 80 ranking keywords and lost 55 in the last period.
What employees say
- Compensation
- 3.70 / 5
- Career opportunities
- 3.90 / 5
- Senior management
- 3.70 / 5
- Work-life balance
- 4.00 / 5
Frequently asked
Alice & Bob has 271 employees as of September 2026.
Alice & Bob has raised $166M in total, most recently a Series B round in May 2026.
Alice & Bob was founded in 2020 by Théau Peronnin, Raphaël Lescanne.
Théau Peronnin (CEO and co-founder) sits at the top of Alice & Bob's reporting structure, with 12 direct reports.
The most common previous employers of current Alice & Bob staff are CEA (8 people), Inria (7 people), Thales (7 people).
Former Alice & Bob employees most often move to ETH Zürich (3), Pasqal (2), CEA (2).
At least 3 companies have a founder who previously worked at Alice & Bob, including Isentroniq, Storio Energy, Azard.
Alice & Bob attracts about 747 organic search visits a month, worth roughly $2K a month in equivalent ad spend.
The most common skills among Alice & Bob staff are Python (Programming Language), Project Management, English, Microsoft Office, MATLAB.
Alice & Bob staff are concentrated in Île-de-France, France (84), France (32), Greater Paris Metropolitan Region (28).
Alice & Bob has about 63 people in Engineering, up 62% over the past year, as of September 2026.
Alice & Bob has about 33 people in Research, up 57% over the past year, as of September 2026.
Computed from 170 current and 91 former Alice & Bob profiles, as of September 2026. Source: Crustdata.
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