Cardinal Cryptography
Cardinal Cryptography is a Krakow-based venture studio and consulting firm that builds zero-knowledge privacy infrastructure for blockchain, serving Web3 developers, DeFi projects, and enterprises with proprietary products including Aleph Zero, Blanksquare, and Shielder SDK.
- Company typePrivate
- Founded2017
- HeadquartersKrakow, Poland
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Cardinal Cryptography does
Cardinal Cryptography is a Krakow, Poland-based venture studio and consulting company founded in 2017 (some firmographic sources list 2018). The firm specializes in zero-knowledge (ZK) cryptography and privacy-enhancing blockchain applications, employing 11-50 staff described as innovation-driven engineers, mathematicians, marketers, and designers. Cardinal positions itself as authoring the underlying science rather than operating as a middleman software house, with revenue generated through bespoke cryptography consulting engagements and licensing of proprietary technology including the Shielder SDK.
The company's product portfolio comprises three core assets: Aleph Zero, a layer-1 blockchain with a novel consensus protocol delivering instant finality, scalability, and built-in ZK privacy (99% uptime over four years, Top 100 market ranking, 50+ teams building on the network); Blanksquare, a privacy-first infrastructure layer and consumer app powered by ZK technology; and Shielder SDK, a developer toolkit for embedding ZK privacy into DeFi applications and wallets. Cardinal's research credentials include co-authoring the Highway consensus protocol whitepaper with Casper Labs and Daniel Kane. The firm is a member of the Polish and Swiss-Polish Blockchain Associations, an AWS Activate participant, and has won six awards between 2021 and 2023, including Deloitte's "Companies to Watch" (2nd place), the European FinTech Hackcelerator, and a Global FinTech Hackcelerator Finalist position under the Monetary Authority of Singapore.
Go-to-market is enterprise field sales through direct consulting engagements. Named client and partner relationships include Deutsche Telekom (validator node infrastructure for Aleph Zero), Common (multi-chain privacy consumer app built by Cardinal as Blanksquare core developers), Sovryn (Bitcoin DeFi contribution), Casper Labs (consensus research), and Coinbar Group (branding). No pricing, revenue, funding, or headcount specifics are publicly disclosed, and the company's growth signals are mixed: a multi-product venture-studio stack and strong award/recognition profile tempered by the absence of disclosed capital raises and the strategic pivot from Aleph Zero toward Blanksquare.
Cardinal Cryptography firmographics
Firmographics- Name
- Cardinal Cryptography
- Legal name
- Cardinal Cryptography
- Website
- https://cardinals.cc
- Company type
- Private
- Founded year
- 2017
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Cardinal Cryptography is a Krakow-based venture studio and consulting firm that builds zero-knowledge privacy infrastructure for blockchain, serving Web3 developers, DeFi projects, and enterprises with proprietary products including Aleph Zero, Blanksquare, and Shielder SDK.
- Ownership category
- akta.pro rank
Cardinal Cryptography industry classification
Industry- Product category
- Blockchain Infrastructure & Privacy Technology
- NAICS
- Software Publishers (5132), Financial Transactions Processing, Reserve, and Clearinghouse Activities (522320)
- SIC
- Finance Services (6199)
- akta.pro primary industry
- Security Architecture & Engineering Advisory (Zero Trust, IAM, Network) (BPAKADAF)
- akta.pro secondary industries
- Smart Contract Auditing & Formal Verification (FSAPAJAA), Authentication (MFA/Passwordless/Biometrics) Platforms (BPAMAEAE)
Keywords
Where Cardinal Cryptography is headquartered
LocationHeadquarters
- HQ city
- Krakow
- HQ country
- Poland
- HQ region
- Europe
Offices1 record
Markets served
Cardinal Cryptography business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure
Revenue model
- Consulting Services: Bespoke cryptography consulting and software development services. The company ideates, builds, integrates, and launches privacy-enhancing solutions for clients.
- Product/Technology Licensing: Licensing of proprietary technologies including Shielder SDK and potentially Blanksquare to other projects and applications.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels3 records
Cardinal Cryptography product offering
Product offeringCore offering
Cardinal Cryptography is a venture studio and consulting company that ideates, builds, integrates, and launches bespoke cryptography solutions and privacy-enhancing blockchain applications. It develops and operates Aleph Zero, an enterprise-ready layer 1 blockchain with built-in privacy, and licenses developer tools like the Shielder SDK, while offering dedicated software development team support to embed Zero Knowledge privacy into DeFi apps, wallets, and other Web3 products.
Product overview
Cardinal Cryptography operates as a venture studio offering a portfolio of cryptography and blockchain products. The core offerings include Aleph Zero, a layer 1 blockchain with ZK-powered privacy features, and Blanksquare, a privacy-first infrastructure layer and consumer app. Shielder SDK is an add-on module for embedding ZK privacy in DeFi applications and wallets. The products are designed to work together, with Aleph Zero providing the foundational blockchain infrastructure and Blanksquare serving as the consumer-facing application layer with developer integration capabilities.
Differentiator
Problem solved
Functional benefit
Brands
- Aleph Zero: A scalable layer 1 blockchain with privacy-preserving features enabled by Zero Knowledge (ZK) technology.
- Blanksquare
- Shielder SDK
- Common
Products and services
- Aleph Zero Enterprise-ready layer 1 blockchain with privacy-preserving features enabled by Zero Knowledge technology. It offers instant finality, high scalability, and built-in privacy for enterprise and Web3 applications, and has maintained 99% uptime over four years.
- Blanksquare Privacy-first infrastructure layer and consumer application powered by Zero Knowledge technology. Brings lightning-fast onchain privacy to users and developers natively within the app and through integrations with other applications.
- Shielder SDK Software development kit authored by Cardinal Cryptography for embedding Zero Knowledge privacy into DeFi applications and wallets, enabling developers to add privacy features to their Web3 products.
- Common Privacy-focused crypto consumer application built by Cardinal (as Blanksquare core developers) that allows users to manage, earn, and trade crypto across multiple chains without exposing financial data, combining neobank-like simplicity with privacy.
- Cryptography Consulting & Development Services Bespoke cryptography consulting and dedicated software development team support. Cardinal ideates, builds, integrates, and launches privacy-enhancing solutions and ZK privacy integrations for enterprise and Web3 clients, including wallet and DeFi app integration design.
Quantifiable outcome
- 99% uptime maintained over 4 years for Aleph Zero network
- +2 more outcomes
Companies that use Cardinal Cryptography
Customer profileNamed customers5 records
Segments3 records
Ideal customer profiles2 records
Cardinal Cryptography technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Cardinal Cryptography partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered major, core and minor.
- Deutsche TelekommajorCardinal assisted the Deutsche Telekom team in launching a validator node infrastructure for the Aleph Zero network. This is a significant partnership with a major telecommunications company contributing to network security and decentralization.
- AccelpointcoreAccelpoint organizes the European FinTech Hackcelerator where Cardinal won. Accelpoint features Cardinal among its competition winners on their website.
- AWS ActivatecoreAWS Activate program participant - Cardinal uses Amazon Web Services for cloud infrastructure as part of their technology stack.
- Polish Blockchain AssociationminorMember of the Polish Blockchain Association, collaborating on blockchain industry advocacy and development in Poland.
- Swiss-Polish Blockchain AssociationminorMember of the Swiss-Polish Blockchain Association, facilitating cross-border blockchain collaboration between Switzerland and Poland.
- Kosciuszko InstituteminorCardinal supported the Kosciuszko Institute during CYBERSEC European Forum, their flagship conference gathering stakeholders from governments and business.
- CommoncoreBuilt Common - a privacy crypto app for all chains. Cardinal (as Blanksquare core developers) developed this consumer application for private crypto management across multiple chains.
- SovrynminorContributed to building Sovryn, a non-custodial, permissionless Bitcoin trading and lending platform.
- Casper LabsminorCo-authored the Highway consensus protocol whitepaper with Daniel Kane and the Casper Labs team.
Scale indicators4 records
Recent moves6 records
Expansion highlights6 records
Cardinal Cryptography competitors and assessment
Company assessmentMarket position
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
Cardinal Cryptography social profiles
Digital presenceCardinal Cryptography financial estimates
Financial estimateRevenue estimate
Valuation estimate
Cardinal Cryptography leadership team
Management profileNumber of profiles
Cardinal Cryptography funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Cardinal Cryptography M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Cardinal Cryptography
What does Cardinal Cryptography do?
Cardinal Cryptography is a venture studio and consulting company that ideates, builds, integrates, and launches bespoke cryptography solutions and privacy-enhancing blockchain applications. It develops and operates Aleph Zero, an enterprise-ready layer 1 blockchain with built-in privacy, and licenses developer tools like the Shielder SDK, while offering dedicated software development team support to embed Zero Knowledge privacy into DeFi apps, wallets, and other Web3 products.
Is Cardinal Cryptography a public or private company?
Cardinal Cryptography is a private company. It is classified as unknown and is currently operating.
When was Cardinal Cryptography founded?
Cardinal Cryptography was founded in 2017. It employs 11 to 50 people.
Where is Cardinal Cryptography based?
Cardinal Cryptography is headquartered in Krakow, Poland, in the Europe region.
How does Cardinal Cryptography make money?
Two revenue lines are on record. Consulting Services are the primary driver. The others are product/Technology Licensing.
Does Cardinal Cryptography have an API?
No public API is recorded for Cardinal Cryptography.
What industry is Cardinal Cryptography in?
Cardinal Cryptography's product category is Blockchain Infrastructure & Privacy Technology. Its primary akta.pro industry code is BPAKADAF, Security Architecture & Engineering Advisory (Zero Trust, IAM, Network), with a secondary code of FSAPAJAA, Smart Contract Auditing & Formal Verification. Its NAICS code is 5132 and its SIC code is 6199.