Maybell Quantum
Denver, US · Founded 2020 · 6 known investors
Maybell Quantum designs and manufactures dilution refrigerators for quantum computing and research, offering systems that reach base temperatures below 10mK with front-opening access and self-regenerating helium traps. The company builds its hardware in Denver, Colorado, for scientists and quantum labs.
Founders & leadership
Maybell Quantum was founded in 2020 by Corban Israel Tillemann-Dick.
CI
Corban Israel Tillemann-DickFounder
BC
Bryan ChooinCo-Founder / COO
Board
CD
Christopher DarbyBoard director
MK
Mary K. BushBoard director
Investors · 6
Reported raises · per SEC filings
Form D private placements$71.8M disclosed across 2 of 3 rounds · 2024–2026
▶$38.5MraisedNov 2025 · 5 investors · Other TechnologyRule 506(b)
▶$38.5MraisedNov 2025 · 5 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Christopher DarbyDirector
- Bryan ChooExecutive Officer, Director
- Corban Israel Tillemann-DickExecutive Officer, Director
- Mary K. BushDirector
- Offering amount
- $38.5M
- Amount sold
- $38.5M
- First sale
- Feb 2025
- Incorporated
- Corporation, Delaware, 2020
- Federal exemptions
- 06b
▶$33.3MraisedMar 2024 · 24 investors · Other TechnologyRule 506(b)
▶$33.3MraisedMar 2024 · 24 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Bryan ChooExecutive Officer, Director
- Corban Israel Tillemann-DickExecutive Officer, Director
- Christopher DarbyDirector
- Offering amount
- $38.5M
- Amount sold
- $33.3M
- First sale
- Mar 2024
- Incorporated
- Corporation, Delaware, 2020
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Competitors · 4
by search overlap
Hubbell12 shared keywordsHubbell makes electrical and utility products and solutions used to build and operate power infrastructure. It serves customers operating critical electrical and utility systems.
Quantinuum6 shared keywordsQuantinuum develops quantum computers and quantum software solutions for applications in drug discovery, healthcare, materials science, cybersecurity, and energy. The company operates as an integrated quantum technology platform serving enterprise and research customers globally.
D-Wave5 shared keywordsD-Wave develops and delivers quantum computing systems, software, and services to enterprises across manufacturing, logistics, financial services, and life sciences sectors. The company offers both annealing and gate-model quantum computing products through on-premises systems and its Leap quantum cloud service.
ADP4 shared keywordsADP provides cloud-based human capital management solutions that integrate payroll, HR, talent management, time and attendance, tax, and benefits administration for businesses globally. The company serves as a comprehensive provider of HCM software and business outsourcing services with analytics and compliance expertise.
Companies competing with Maybell Quantum for the same Google search keywords, organic and paid, via search-intersection analysis.
Non-dilutive funding · 2 SBIR/STTR awards
Federal grants — no equity taken| Agency | Phase | Year | Amount |
|---|---|---|---|
| Defense Advanced Research Projects Agency (DARPA)Defense Advanced Research Projects Agency | Phase II | 2023 | $974.7K |
| Defense Advanced Research Projects Agency (DARPA)Defense Advanced Research Projects Agency | Phase I | 2022 | $175K |
Source: SBIR.gov award data (U.S. Small Business Administration). SBIR/STTR awards are competitive federal R&D grants and contracts — non-dilutive capital alongside any venture rounds above.
In the news
Frequently asked questions
- What does Maybell Quantum do?
- Maybell Quantum designs and manufactures dilution refrigerators for quantum computing and research, offering systems that reach base temperatures below 10mK with front-opening access and self-regenerating helium traps. The company builds its hardware in Denver, Colorado, for scientists and quantum labs.
- Who founded Maybell Quantum?
- Maybell Quantum was founded by Corban Israel Tillemann-Dick in 2020.
- Who are Maybell Quantum's investors?
- Maybell Quantum's investors include Caruso Ventures, Decisive Point, In-Q-Tel, The E14 Fund, Addition, Lavrock Ventures.
- How much funding has Maybell Quantum raised?
- Maybell Quantum has disclosed $71.8M raised across 2 of its 3 known rounds.
- Where is Maybell Quantum headquartered?
- Maybell Quantum is headquartered in Denver, US.