Same methodology. Two ways to run it.
Rejoyce and Zero Fog are peer firms operating one discipline. Rejoyce productizes the substrate as a platform you install. Zero Fog deploys the same methodology founder-led, in situations where the work needs to happen now — in the room, on the timeline of the decision.
Pick the engagement shape that matches the moment you’re in.
The choice between Rejoyce and Zero Fog isn’t about quality — both firms run the same methodology against the same substrate. It’s about how the work needs to happen: do you want to install infrastructure your team operates, or do you want senior practitioners running the diagnostic in the room?
- You’re ready to install infrastructure — the 30-day Mirror install lands a live, interrogable causal model your team owns.
- You want the model to persist — refreshing, alerting, and earning expansion past the first decision.
- Self-guided is fine — you don’t need a senior practitioner in the room to interpret the read.
- The buyer is software-adoption ready: you want a system, not a project.
- The timing is set by an external event — a board meeting, a transaction window, a transformation kickoff — not by an install cadence.
- The situation carries political weight that benefits from founder presence rather than a software portal.
- The diagnostic needs depth custom to the company’s structural complexity — multi-entity, post-merger, mid-cycle — where the founder-led adaptation is the better fit isn’t the right fit for the question.
- The buyer wants senior judgment in the room, not infrastructure to operate.
One discipline. Two firms purpose-built for different buyer situations.
Both firms operate against the same underlying methodology — Execution Physics™, the four primitives (Mirror, Capability Framework, Joyce, Flywheel), the 110-sub-dimension capability architecture. The substrate is shared. What differs is the delivery commitment and the buyer situation each is built for.
Rejoyce productizes the substrate. The 30-day Mirror install delivers a live causal model your team owns and interrogates through Joyce, calibrated to your sector and your data. It compounds because it’s software: the substrate is pre-built, the calibration cycle is repeatable, and the system stays after the engagement ends. The model is for buyers ready to install infrastructure.
Zero Fog deploys the same methodology founder-led, scoped to a specific strategic moment. When a board has questions next month, when an integration is mid-flight, when the political weight of a decision requires senior presence rather than a portal — Zero Fog runs the Mirror in that situation, with the founder in the room. The work is custom to the company’s complexity; the deliverable matches the moment’s political and analytical demands.
Peers, not parent and subsidiary.
The Enterprise / Domain distinction operates at both firms.
Either firm can scope delivery to a single functional domain (Revenue, Operations, Customer) or to full Enterprise. Zero Fog scopes its senior-judgment delivery to the situation; Rejoyce scopes its productized delivery to the buyer’s authority. The choice of firm is about engagement style and commitment profile. The choice of install scope is independent — driven by where the work needs to land.
Two paths forward.
If your situation calls for senior-led, in-room delivery, the right next step is Zero Fog — they publish the reciprocal of this page at zero-fog.com/rejoyce. If you want to feel the substrate against your own sector first — about 10 minutes, self-guided — start with the Primary Experience.
Zero Fog is an independent firm. Rejoyce and Zero Fog are peer firms in the founding of Strategic Execution Intelligence.