Methodology
The Soulscale Index ranks the world's mostvaluable brands not by what they're worth,but by whether they kept their soul intactat scale. Here's exactly how we do this.The index is built with Interbrand's100 most valuable brands of 2025.
Every brand is evaluated across three dimensions — Conviction, Craft, and Character — that together determine its position on the Soulscale Index. Each one answers a different question about whether a brand stayed human as it scaled.
The Mind — What it believes.
Does the brand think for itself with an unborrowed point of view, or does it succumb to category conformity and consensus drift? Conviction is the independence of a brand's mind — the beliefs it would hold even if no one were watching.
Loss of Conviction: drift and category conformity. The brand stops thinking for itself and starts mirroring the market.
The Hands — What it makes.
Does the brand maintain uncompromised tactile quality, detail, and care at scale, or has it been value-engineered down to spreadsheet margins? Craft is the obsession with the product or service — the evidence of the hand still in the work.
Loss of Craft: value-engineering and diluted standards. The product is optimized for margins, not for the person holding it.
The Heart — How it acts when tested.
Does the brand hold firm when doing the right thing costs real profit, margin, or convenience? Character is the brand's backbone — what it does under pressure, when no one would know if it cut a corner and it chooses not to.
Loss of Character: compromise under commercial pressure. When it costs money to do right, the brand blinks.
Each brand is scored 0–100 across the three dimensions above. The overall Soulscale score is the equal average of Conviction, Craft, and Character. Then three deeper checks — described below — can pull those scores down when they find real evidence of drift between what a brand says and what it does.
Scores are not based on revenue, valuation, or market share. The revenue scale is derived from publicly available information about the brand's approximate revenue range. It's descriptive, not evaluative, and is not an input into any of the three dimension scores.
Scores are based on integrity; the gap between what a brand says and does. Hypocrisy is penalized. Consistency is rewarded.
Brands scoring 65 and above are Soulful — a soul that holds under real scale. Scores from 50 to 64 are Soulstrained — intact in places, fraying in others. Below 50 is Soulless — the gap between conviction and practice has won.
All scores are based on publicly available research: B-Corp certifications, impact reports, supply chain documentation, founder mission statements, and third-party verifications where available. Verification depth varies by brand; some are fully transparent, others have limited public disclosure. We prioritize evidence over narrative.
The scores in the index were AI-generated, using a general-purpose large language model with a structured research prompt, at the time each brand was added, using publicly available data as its source material.
Beyond the three dimensions, every brand goes through three independent analyses. Each looks for a different kind of drift — and when it finds it, the relevant dimension scores come down.
We look at the mission the brand was founded to serve, then look at whether it still honors that mission in practice — in its products, craft, decisions, and the experience it actually delivers. Not who owns or runs it: a founder-run company can betray a mission, and a professionally-run one can uphold it. When the practice has drifted from the founding mission, Conviction and Character scores come down. Brands that still live their mission keep their scores.
We trace the brand from founding to today, marking the moments it stayed true, the moments it drifted, and the moments it came back. A brand that held onto its identity through every stage of growth scores high. One that slowly lost its soul along the way scores lower. This shapes its Conviction and Craft scores too.
We collect what the brand says about itself, then collect what its customers and the wider public actually say about it — from Reddit, Trustpilot, the BBB, and Google reviews. Then we measure the gap. If a brand talks about quality but customers report falling-apart products, that gap lowers its Craft and Character scores. A small gap changes little; a big gap pulls scores down hard.
None of these checks can raise a score above where it started — they can only lower it when they find real evidence of drift. Where more than one check touches the same dimension, we average their effects rather than stack them, so a brand isn't penalized twice for the same drift. The final score reflects both what the brand claims and whether the evidence agrees.