How gallery tier is assigned
Each gallery on Codex carries a tier label. It answers one question: how does this gallery sit in the contemporary art-world hierarchy? It is not a quality judgment, and it is not a measure of a gallery's program. A Mid-Level gallery may have the most interesting program in its city. A Blue-Chip gallery may be coasting on a roster signed twenty years ago.
What goes into the label
Tier is rule-based, not a percentile cut on a single score. We look at four things: who the gallery represents, how widely it operates, how much program activity we can observe, and what we know about its market presence.
Roster strength
Footprint & program
Multi-city counts distinct cities where the gallery operates a non-temporary space. Global program counts continents. Active program is exhibitions per location per year over the last twenty-four months. Market presence is a top sale at or above one million dollars, or at least one represented artist who has crossed that line.
Roster signal
Roster only counts living artists with an active represented relationship. We do not count past affiliations, deceased artists managed via estates, or artists who appear once in a group show. Counts are derived from the gallery's own representation listings, cross-referenced against artist career-stage labels.
- Iconic or Blue-Chip artist counts drive the top-tier signal. These are artists Codex has independently labeled at the top two career stages.
- Tier-classified counts cover Iconic through Mid-Career, dropping Emerging and Pre-Market. Used to distinguish a serious program from a gallery whose entire roster sits at the early-career edge.
- Total roster size matters at the lower end: a one-artist program is not the same as a ten-artist program, even if neither has crossed a tier yet.
The tiers
Tier assignment runs through these rules in order. The first one that matches wins.
Mega
A roster anchored by living iconic and blue-chip artists, a multi-city program in at least three cities and on at least three continents, and a deep market presence (ten or more artists who have sold for over a million dollars). The smallest, most-constrained tier. Six galleries match worldwide.
Blue-Chip
Three or more living iconic or blue-chip artists on the represented roster, plus at least one physical location or an active exhibition program. Galleries that anchor a city or region with top-tier representation.
Established
At least two living tier-classified artists on the roster, with either an active exhibition program or a presence in more than one city. Catches serious galleries that have not yet crossed the top-tier roster threshold.
Mid-Level
A working roster with one or more tier-classified artists, but without the top-tier anchor, multi-city footprint, or sustained program density of the higher tiers.
Emerging
At least one represented artist on the roster, but no tier-classified artists yet. New galleries or program-focused spaces still building their stable.
Unclassified
No represented-artist roster signal at all in our records. Often a gallery we have not yet crawled deeply or a secondary-market dealer that does not represent artists primarily. Unclassified is a valid output. We surface it deliberately rather than forcing a guess.
Mega is intentionally narrow. Three or four signals can land a gallery in Blue-Chip; clearing all four Mega gates simultaneously is rare. The current Mega set is six galleries worldwide. We expect that number to stay between five and eight for the foreseeable future.
Qualifiers
Some additional flags ride alongside the tier. They are not part of the label itself but they appear in the gallery's record.
- Global program
- Permanent locations on three or more continents.
- Multi-city
- Permanent locations in two or more cities. The flag distinguishes a satellite presence (two) from a true global footprint (three or more).
- Market presence
- The gallery has either a recorded top sale at or above one million dollars, or at least one represented artist who has crossed that line at auction.
- Active program
- Exhibitions per location per year average four or more across the last twenty-four months. Distinguishes a working program from a name-only space.
What this does not do
We do not rank galleries by score percentile. Tier is rule-based. A new gallery that signs three blue-chip artists is Blue-Chip on day one. A long-established gallery whose roster has shifted entirely to early-career artists drops out of the higher tiers, regardless of its history.
We do not count secondary-market dealers in this taxonomy. Galleries that operate primarily as secondary-market resellers, advisors, or auction-house specialists carry a separate "Secondary market" badge instead of a tier.
We do not lock historical assignments. Every quarter we recompute the tier set against current roster, location, exhibition, and market data, and we save the parameters as a snapshot. Any gallery's tier carries a reference to the snapshot it was assigned under, so we can always explain a past label.
We do not treat tier as a measure of program quality, exhibition curation, or critical importance. It describes scale and market position only.