- CEO
- Torbjorn Bull Jenssen
- Full Time Employees
- 10
- Sector
- Financial Services
- Industry
- Financial - Capital Markets
- Address
- Box 12172 Stockholm Sweden 102 25
- IPO Date
- May 19, 2021
- Business
- K33 AB (publ) (Ticker: ARCNF) operates as a Sweden-based holding company focused on digital assets and cryptocurrencies, providing institutional-grade platforms and services for trading, investing, and custody primarily across Europe, the Middle East, and Africa (EMEA). Founded in 2004 and headquartered in Stockholm, Sweden, with operational presence in Oslo, Norway, the company offers crypto brokerage services, over-the-counter (OTC) trading desks with deep liquidity and no trading or withdrawal fees, crypto custody solutions, market-leading execution, actionable research and insights on blockchain and digital assets, direct bank transfers in multiple currencies including NOK, USD, EUR, GBP, SEK, DKK, CHF, and CAD, personalized support for private clients and institutional partners, and a digital fund for professional investors; its subsidiaries include K33 Operations AS for user platforms in learning, trading, and investing in digital assets, Green Data for Bitcoin mining in northern Norway, Puremarkets Ltd for developing an inter-bank marketplace for digital assets, and ITOAM Sarl (LN Markets) for derivatives trading on the Bitcoin Lightning Network. In December 2024, the company rebranded from Arcario AB to K33 AB (publ); it launched a Bitcoin treasury strategy in May 2025, initiating accumulation with purchases including 10 BTC in June 2025 for SEK 10 million and an additional 15 BTC in September 2025 for SEK 16 million, bringing its holdings to 141 BTC, aimed at enhancing financial position, enabling product expansions, and forging synergies with Nordic Bitcoin treasury firms; in August 2025, it strengthened its partnership with Goobit Group AB (BTCX) to provide trading and custody infrastructure supporting a "never sell" Bitcoin treasury philosophy.