Post-Quantum
London-based post-quantum cryptography company building quantum-resistant VPN, identity/access management, and blockchain-enabled enterprise SaaS.
Post-Quantum is a London-based cybersecurity company (founded roughly 2012) co-founded by Andersen Cheng (CEO), CJ Tjhai, and Martin Tomlinson. It develops quantum-resistant encryption technologies including VPN and identity/access-management products; its code-based cryptographic algorithm was a finalist in the NIST post-quantum cryptography standardization program. Distinct from Decent Cybersecurity, a separate post-quantum cryptography firm already in this dataset.
Overview
- Headquarters
- London, UK
- Founded
- 2009
- Employees
- Total funding
- $11.2M (£800K seed + £8M/$10.3M Series A)
- Stage
- Series A
- Status
- active
- Domains
- Post-quantum cryptography, Encryption/VPN, Identity and access management
- Website
- post-quantum.com
Founders3
- FounderAndersen ChengCEO and co-founder of Post-Quantum; former JPMorgan European Head of Credit Risk Management and founding member of LabMorgan, later COO of Carlyle Group's European venture fund and CEO of UK crypto provider TRL; also founder of Nomidio.
- FounderCJ TjhaiCTO, Chief Architect, and co-founder of Post-Quantum; expert in error-correcting codes, cryptography, and digital signal processing; formerly lectured at the University of Plymouth.
- FounderMartin TomlinsonEmeritus Professor at the University of Plymouth and co-founder/CSO of Post-Quantum; known for Tomlinson-Harashima Precoding, with prior work applying error-correction research from satellite communications to cryptography at L3-TRL.
Investors2
- FundVMS Investment GroupHong Kong-based multi-strategy alternative investment firm founded in 2006 by Benny Chong (Chong Tin Lung); invested in Post-Quantum's 2016 Series A.
- FundAM PartnersHong Kong-based investment firm; co-invested alongside VMS Investment Group in Post-Quantum's 2016 Series A. No independent profile found beyond this mention.
Cap table0
Approximate ownership by holder. Indexed holders link to their records.
Raised per round
Percentages marked ~ are not disclosed. Some are a generic VC-pattern model (founders/team weighted heaviest, option pool lightest, other holders evenly) sized to whatever's left undisclosed — a standard industry shape, not this company's actual cap table.
| Holder | Instrument | Ownership |
|---|---|---|
| Preferred (Series A) | ~50.0% | |
| Preferred (Series A) | ~50.0% |
Contracts0
No linked records yet.
Frequently asked
- What does Post-Quantum do?
- Post-Quantum is a London-based cybersecurity company (founded roughly 2012) co-founded by Andersen Cheng (CEO), CJ Tjhai, and Martin Tomlinson. It develops quantum-resistant encryption technologies including VPN and identity/access-management products; its code-based cryptographic algorithm was a finalist in the NIST post-quantum cryptography standardization program. Distinct from Decent Cybersecurity, a separate post-quantum cryptography firm already in this dataset.
- Where is Post-Quantum headquartered?
- Post-Quantum is headquartered in London, UK and was founded in 2009.
- How much funding has Post-Quantum raised?
- Post-Quantum has raised $11.2M (£800K seed + £8M/$10.3M Series A) in disclosed funding.
- What does Post-Quantum specialize in?
- Post-Quantum works across Post-quantum cryptography, Encryption/VPN, Identity and access management.
Sources & citations3
Each claim links to its underlying source. Confidence reflects how directly the source supports the claim.
- 1
Interview with Andersen Cheng on Post-Quantum's founding and history
Cyber Magazine: Interview with Andersen ChengVerified2023-01-01 - 2
Post-quantum crypto startup PQ bags $10.3M Series A from VMS Investment Group and AM Partners
TechCrunch: Post-quantum crypto startup PQ bags $10.3M Series AVerified2016-07-07 - 3
Post-Quantum has been pioneering quantum-safe security since 2009
Post-Quantum: Company — Post-QuantumVerified2026-08-02