How reachable are these buyers
Reachability is 30% of the BUILD rubric and the single largest dimension in it. It is three separate facts: how geographically concentrated the operators are, whether a public register already names them, and whether an institutional buyer exists. Add ?licensed=1 for industries whose buyers appear in a state register — that is not a proxy for reachability, it IS reachability.
REACHABLE IS NOT THE SAME AS RECEPTIVE. A concentrated, licensed, federally-purchasing population can still refuse to buy. This measures whether you can get in front of them, which is what D3 asks, and nothing about whether they will say yes — that is what the pre-registered demand test is for, and no dataset substitutes for it.
Shortlist
| Industry | #Operators | #Counties | #In top 10 counties | The work | Public directory | #Federal spend |
|---|---|---|---|---|---|---|
| Cut and Sew Apparel Contractors | 1,717 | 80 | 78.2% | — | no public directory | $1,393m |
| Teleproduction and Other Postproduction | 2,817 | 142 | 65.7% | — | no public directory | $21m |
| Jewelry, Watch, Precious Stone, and Prec | 6,440 | 254 | 59.0% | — | no public directory | $672m |
| Agents and Managers for Artists, Athlete | 4,632 | 194 | 58.8% | — | no public directory | $1m |
| Independent Artists, Writers, and Perfor | 37,712 | 732 | 58.2% | — | no public directory | $238m |
| Piece Goods, Notions, and Other Dry Good | 2,407 | 160 | 55.0% | — | no public directory | $0m |
| Sound Recording Studios | 1,806 | 139 | 51.0% | — | no public directory | $3m |
| Motion Picture and Video Production | 16,705 | 458 | 50.3% | — | no public directory | $297m |
| HMO Medical Centers | 1,929 | 85 | 50.2% | — | no public directory | $1m |
| Taxi and Ridesharing Services | 2,854 | 212 | 49.4% | — | no public directory | $16m |
| Other Specialized Design Services | 3,064 | 209 | 47.6% | — | no public directory | $26m |
| Jewelry and Silverware Manufacturing | 1,427 | 142 | 44.9% | Jewelers and Precious Ston | no public directory | $16m |
| Transportation Equipment and Supplies (e | 1,822 | 183 | 44.3% | — | no public directory | $92m |
| Finfish Fishing | 1,238 | 98 | 44.2% | — | no public directory | $11m |
| Parking Lots and Garages | 11,799 | 269 | 43.2% | — | no public directory | $290m |
| Toy and Hobby Goods and Supplies Merchan | 1,531 | 148 | 41.6% | — | no public directory | $0m |
| Research and Development in Biotechnolog | 5,211 | 240 | 41.2% | — | no public directory | $16,129m |
| Wineries | 3,676 | 301 | 40.0% | — | no public directory | $0m |
| Household Appliances, Electric Houseware | 2,051 | 154 | 39.8% | — | no public directory | $22m |
| Other Financial Vehicles | 1,282 | 125 | 39.5% | — | no public directory | $6m |
| Theater Companies and Dinner Theaters | 2,817 | 249 | 39.5% | Actors | no public directory | $2m |
| Other Similar Organizations (except Busi | 17,290 | 620 | 39.4% | — | no public directory | $37m |
| Musical Groups and Artists | 5,114 | 336 | 39.2% | — | no public directory | $16m |
| Language Schools | 1,307 | 111 | 37.3% | — | no public directory | $433m |
| Limousine Service | 3,888 | 236 | 36.6% | — | no public directory | $51m |
| Industrial Design Services | 1,203 | 126 | 36.2% | — | no public directory | $61m |
| Public Relations Agencies | 8,132 | 325 | 36.2% | — | no public directory | $960m |
| Crude Petroleum Extraction | 3,370 | 289 | 35.2% | — | no public directory | $15m |
| Meat and Meat Product Merchant Wholesale | 1,673 | 167 | 34.9% | — | no public directory | $5m |
| Fresh Fruit and Vegetable Merchant Whole | 4,344 | 275 | 34.8% | — | no public directory | $10m |
| Political Organizations | 1,802 | 177 | 34.6% | — | no public directory | $0m |
| Fish and Seafood Merchant Wholesalers | 1,686 | 167 | 34.2% | — | no public directory | $1m |
| Packaged Frozen Food Merchant Wholesaler | 2,323 | 224 | 33.2% | — | no public directory | $1m |
| Electroplating, Plating, Polishing, Anod | 1,511 | 169 | 33.0% | — | no public directory | $37m |
| Other Miscellaneous Nondurable Goods Mer | 9,503 | 487 | 32.9% | — | no public directory | $3m |
| Pharmaceutical Preparation Manufacturing | 1,081 | 145 | 32.4% | — | no public directory | $83,789m |
Ranked on GEOGRAPHIC CONCENTRATION — the share of operators sitting in the ten densest counties. It separates hard: cut-and-sew apparel contractors put 78.2% of operators in 80 counties, while restaurants spread 13.9% across 2,858. A population you can reach by targeting ten places is a different proposition from one you cannot.
MARGIN READS "not published" FOR MOST SERVICE INDUSTRIES, and that is a coverage fact rather than a low margin. The Economic Census collects a cost structure for construction, manufacturing and wholesale and collects none for retail, transport, professional services, food service or personal services. Filtering on a minimum margin therefore removes every industry Census does not measure — which is a real narrowing and worth knowing you have done.
Take this shortlist away → One self-contained file with the criteria stated above the result, a content hash anyone can check at /verify, and what it does not tell you. A shortlist without its criteria is a list of industries with no account of why those — and the criteria being inside the hash is how a recipient can tell they were chosen before the result rather than after it.
What the licence gate bands mean
| Band | Median 10-year growth of industries in it |
|---|---|
| none | -4.2% median 10-year growth — no barrier means no protection from the next entrant |
| marginal (1-9) | +11.4% — the strongest bucket in all three backtested windows |
| moderate (10-39) | +8.5% |
| high (40+) | +4.9% — a gate so high it also deters the operator |
166 industries, three independent windows. Industries with no licence gate shrank in every one; every gated bucket beat them. The peak is a MARGINAL gate, not a high one — which contradicts what our own rubric asserts, and the contradiction is recorded next to the rubric rather than quietly resolved.