Capital B, formerly known as The Blockchain Group, is a French publicly traded technology company that has established itself as Europe's most prominent corporate Bitcoin treasury vehicle. Holding approximately 2,888 BTC, Capital B has adopted an aggressive accumulation strategy modeled on the approach pioneered by Strategy in the United States. The company trades on Euronext Paris and has positioned itself as the primary way for European equity investors to gain leveraged exposure to Bitcoin.
Company Background
The company was originally founded as The Blockchain Group, a French technology firm focused on blockchain consulting, data intelligence, and technology services. Listed on Euronext Paris, it operated as a relatively small-cap technology company serving enterprise clients interested in blockchain adoption.
The transformation into a Bitcoin-focused treasury company accelerated significantly in 2024-2025, when the company rebranded as Capital B and made Bitcoin accumulation the centerpiece of its corporate strategy. The rebrand explicitly signaled that the company's primary purpose had shifted from technology services to Bitcoin holdings, echoing the approach taken by MicroStrategy when it rebranded as Strategy.
Bitcoin Treasury Strategy
Capital B's Bitcoin strategy involves using multiple capital market instruments to fund ongoing Bitcoin purchases. The company has raised capital through equity offerings, convertible notes, and other financing mechanisms available to European public companies, deploying the proceeds into Bitcoin. By early 2026, this approach had built the company's holdings to approximately 2,888 BTC.
Management has articulated a long-term vision of maximizing Bitcoin per share, a metric that has become standard among Bitcoin treasury companies. The company views each share as representing a claim on a growing pool of Bitcoin, with the goal of compounding that per-share exposure over time through strategic capital raises and disciplined acquisition.
Significance
Capital B occupies an important position in the global Bitcoin treasury landscape as the leading European example of this corporate model. While the United States and Asia have produced the majority of Bitcoin treasury companies, Europe had been comparatively underrepresented until Capital B emerged as a significant player. The company provides European investors -- including institutional allocators subject to geographic or asset-class restrictions -- with a way to gain Bitcoin exposure through a regulated European equity.
The company's success has demonstrated that the Bitcoin treasury model is replicable across different capital market structures and regulatory environments. Euronext Paris, one of Europe's major exchanges, now hosts a company whose primary value proposition is Bitcoin holdings, a development that would have seemed unlikely just a few years earlier. Capital B's trajectory suggests that the corporate Bitcoin treasury trend will continue to expand into additional markets and geographies.