Why this firm exists.
The pattern repeated twenty-five times. The discipline had to be practiced.
The pattern that became Zero Fog repeated 25 times across 15 years of strategic execution work — at Liberty Mutual, BCG's Customer Experience practice, Bank of America, and BCG's Corporate Finance Strategy practice. Different sectors, different scales, the same structural failure: leadership had committed to something critical — a transformation, a post-merger integration, an AI program, a re-org — the mandate was clear, but the capability to execute it wasn't there.
Hero work compensated. Glue teams formed. Initiatives stalled quietly. The data existed — in financials, surveys, AARs, benchmarks — but the causal connections between execution and outcomes weren't visible. The fix, every time, was the same architecture: a causal model linking financial outcomes to the capability factors that govern them, with explicit causal chains, confidence-qualified contribution ratios, and a feedback loop that compounded learning rather than resetting it.
The work produced results — but it produced them once, person-dependent, project-bounded. The discipline left when the engagement ended. The depth left with it. Zero Fog exists because that pattern had to stop. Twenty-five-plus implementations later, the methodology was clear enough to codify, the discipline repeatable enough to practice as a firm, and the architecture mature enough to productize as software.
The firm and the substrate were built together as peers in a deliberate partnership: Rejoyce productizes Strategic Execution Intelligence as software; Zero Fog practices it as a firm. The two operate against the same methodology — Execution Physics — with the same intellectual lineage, refined across the same engagements. The firm doesn't end when the engagement ends. The substrate doesn't either.
Founded by Jayven M. Rappa — Founder. Executive, operator, and MBB-trained strategy and execution practitioner. Twenty-plus years of work across operating, advisory, and PE-backed contexts. · LinkedIn →
Small by design.
Zero Fog is founder-led and senior-only. There is no leverage model. Every engagement is led by a senior practitioner with direct accountability for the work — the partner does the work, not just the review.
Most consulting firms cannot operate this way. The economics depend on rotating teams of associates assembling the analytical infrastructure during the engagement — the financial framework, the capability assessment, the benchmark comparisons, the causal logic — because the firm itself does not own that infrastructure between projects. The substrate is rebuilt from scratch each time, with people, at scale.
Zero Fog carries the substrate as a permanent asset. The financial framework, the 110-sub-dimension capability framework, the sector benchmark distributions, the causal architecture, the situational diagnostic lenses — all of it exists before the engagement begins and persists after it ends. What the engagement requires is senior judgment to calibrate the substrate to the customer's specific situation and to interpret what it surfaces.
The consequence is a firm that takes a small number of engagements per year, by deliberate choice. If your situation needs a fifty-person consulting team running parallel workstreams, Zero Fog is not the firm. If your situation needs senior judgment, a pre-built analytical infrastructure, and a partner who personally owns the work, we are.
Zero Fog and Rejoyce: peers, not parent and subsidiary.
Strategic Execution Intelligence — the sub-category of Decision Intelligence both firms founded — required two delivery surfaces from the beginning: one productized, one practiced. Rejoyce is the software company. It builds the SEI substrate as a platform: the Mirror, the Capability Framework, Joyce, the Flywheel. Customers who want SEI as infrastructure they own and operate go through Rejoyce.
Zero Fog is the practice. It applies the substrate to the moments where leadership teams need senior practitioners alongside the analytical infrastructure — boards navigating sharper diligence, PE operating partners pre-exit, transformation programs pre-design, AI initiatives pre-commit. Customers who want SEI as a practiced discipline with senior partners doing the work go through Zero Fog.
The two firms share intellectual lineage, share IP, and operate as architectural peers in the same sub-category. One isn't the consulting arm of the other. They are two surfaces of the same methodology, deployed against the same thesis, designed to compound each other.
Verify the work, or talk to the founder.
Thirty minutes with the founder to discuss your situation directly. Senior practitioner on the call. No deck. The primary path for prospects in one of the six canonical situations.
Request fit call → For situations that are readyA self-guided session with our analytical substrate running on your own profile, with the situational diagnosis matched to your decision context. The path for prospects who want to experience the substrate before committing to a conversation.
Access the experience → For situations being scopedWe hire senior operators with structured-execution depth. Founder-led firm, senior-only delivery, substrate-as-leverage model.
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