Top Funded PQC Startups
1. SandboxAQ (USA, Palo Alto)
- Total funding: $950M+ across 5 rounds
- Latest: $450M Series E (April 2025) with investors including Google, NVIDIA, Ray Dalio, BNP Paribas, Horizon Kinetics
- Valuation: $5.6B
- Spun out from Alphabet in 2022
2. ID Quantique (Switzerland, Geneva)
- $65M+ investment from SK Telecom (2018), plus additional investments from Deutsche Telecom
- Total funding: $10.8M across 12 rounds (not including the SK Telecom investment)
- Founded in 2001
- Acquired by IonQ in 2025
3. Quantum Xchange (USA, Bethesda)
- Total funding: $39.6M-$45.6M over 2 rounds
- Series A: $13.5M (2021) at $59M post-money valuation, plus initial $10M funding
4. PQShield (UK, Oxford)
- Series B: $37M (June 2024) led by Addition
- Total funding: ~$37M+ (includes earlier Series A)
- Founded in 2018
5. QuSecure (USA, San Mateo)
- Series A: $28M total (February 2025) led by Two Bear Capital with Accenture Ventures participation
- Founded in 2019
6. QuintessenceLabs (Australia)
- Total funding: ~$50M over several rounds
- Investors include Australian Government and In-Q-Tel
- Founded in 2006
Other Notable Funded Companies
Qrypt (USA)
- Amount not disclosed, but active in quantum-secure encryption
Post-Quantum (UK)
- Funding amount not publicly disclosed
Crypto Quantique (UK, London)
- Founded 2016
- Funding amount not publicly disclosed
Quantum Dice (UK, Oxford)
- Founded 2019
- Funding amount not publicly disclosed
Qubitrium (Turkey)
- €1.5M seed funding (2024)
Agnostiq (Canada, Toronto)
- Founded 2018
- Funding amount not publicly disclosed
Quantum Blockchains (Poland)
- Founded 2018
- Funding amount not publicly disclosed
Note: SandboxAQ is significantly ahead with nearly $1B in funding, though it focuses broadly on quantum AI applications beyond just PQC. The purely PQC-focused companies range from ~$10M to $50M in funding, with PQShield and QuSecure being recent well-funded entrants in the pure-play PQC space.