My Big Bang: 55 studios ten years after launch

Ten years after opening its first studio in Paris, My Big Bang reports 55 studios across France and Switzerland. In a review published on 30 September 2026 by French franchise information platform Observatoire de la franchise, the muscle electrical stimulation specialist focuses primarily on the loyalty of its earliest franchisees and the role of multi-site operators. Beyond the anniversary milestone, these figures need to be examined in context.

From a first Paris studio to a network spanning France and Switzerland

The starting point is precisely dated: on 19 September 2016, Stefan Schaaps opened the first My Big Bang studio in Paris. The anniversary review therefore covers a decade of development, from that first location to a network of 55 studios across France and Switzerland.

This total is the main measure of network size disclosed. However, it does not represent the French network alone: the published information does not specify the breakdown between the two countries. Nor does it detail how many studios are company-owned and how many are franchised.

For those considering the French franchise market, the significance of this news lies less in a new opening than in the review of a network that has now been operating for ten years. My Big Bang presents its progress through its studio count, but also through the continuity of its contractual relationships and the expansion of its franchisees’ businesses.

Contract renewals take centre stage

The brand states that 100% of its earliest franchisees have renewed their contracts. This is one of the key figures in its anniversary communications, reflecting the continued commitment of the first entrepreneurs to join the network.

The wording nevertheless requires careful interpretation. It refers to the “earliest franchisees”, not necessarily everyone who joined My Big Bang over the decade. The available review does not detail the number of people concerned, the renewal dates or the length of the contracts.

The figure therefore indicates continuity among an initial group, but cannot on its own establish satisfaction across the network. For a prospective franchisee, it could provide a starting point for discussions with long-standing operators: why did they renew, how has their business developed and what support have they received? These questions still need to be explored directly.

Nearly one in two franchisees operates several studios

Another reported figure is that 45% of franchisees now operate at least two studios. According to the brand’s figures, multi-site operation is therefore a notable feature of its franchisee base.

This indicator is distinct from the total number of locations. It describes franchisees, rather than the proportion of studios owned by multi-site operators. It also does not reveal the average number of locations these operators own, or how quickly they opened or acquired their second studio.

For a prospective franchisee, this figure is a prompt to assess two projects separately: first, successfully running an initial location, and then potentially considering further expansion. Existing multi-site franchisees are useful contacts for understanding that transition. Their presence alone, however, is neither proof of profitability nor a guarantee that others can replicate their progress.

A “success rate” that needs clarification

My Big Bang also claims a 98% success rate across the network. The available review provides neither a definition nor a calculation method. It also does not specify the period covered or the criteria used to define success.

This should therefore be treated as a figure reported by the brand, rather than equated with a profitability rate, studio survival rate or franchisee satisfaction score. These measures describe different things and each requires specific information.

The ten-year review thus offers three complementary perspectives: the size of the network, renewals of the earliest contracts and the presence of multi-site franchisees. Its scope remains that of an anniversary announcement, not a detailed financial audit.

Practical takeaway: before committing, ask for a breakdown of the 55 studios, a definition of the success rate and opportunities to speak with both single-site and multi-site franchisees. These checks will help turn the reported figures into useful evidence for assessing a potential investment.