{"license":"https://creativecommons.org/licenses/by/4.0/","dataset":"atlas","updatedThrough":"2026-08-15","guardrail":"The atlas exposes only relationships declared in the current public data. A link or issue grouping does not make unlike measures comparable, establish ownership or control, define an antitrust market, assign liability, or show that a policy event caused an economic outcome.","filters":{"depth":1,"edgeType":"all","edgeTypeMatched":true,"focus":"industry:23721","focusMatched":true,"kind":"all","kindMatched":true,"layer":"all","layerMatched":true,"query":"","view":"network"},"summary":{"nodeCount":5478,"edgeCount":19193,"sourceCount":45,"profileCount":5433,"nodeKindCount":13,"layerCount":4,"eligibleEdgeCount":19193,"matchedNodeCount":4,"plottedEdgeCount":5,"plottedNodeCount":4,"hiddenNodeCount":0,"directNeighborCount":3},"focusNode":{"id":"industry:23721","kind":"industry","label":"Land subdivision","shortLabel":"23721 Land subdivision","description":"2022 Economic Census employer-firm concentration screen for NAICS 23721.","href":"/industries/23721","metricLabel":"Revenue HHI","metricValue":"D","detail":"4.1K firms / 17.8B revenue","status":"disclosure withheld","year":2022,"color":"#f59e0b","searchText":"23721 land subdivision 23","connectionCount":3},"nodes":[{"id":"industry:23721","kind":"industry","label":"Land subdivision","shortLabel":"23721 Land subdivision","description":"2022 Economic Census employer-firm concentration screen for NAICS 23721.","href":"/industries/23721","metricLabel":"Revenue HHI","metricValue":"D","detail":"4.1K firms / 17.8B revenue","status":"disclosure withheld","year":2022,"color":"#f59e0b","searchText":"23721 land subdivision 23","connectionCount":3,"distance":0,"labelVisible":true,"radius":20,"x":450,"y":260},{"id":"industry:2372","kind":"industry","label":"Land subdivision","shortLabel":"2372 Land subdivision","description":"2022 Economic Census employer-firm concentration screen for NAICS 2372.","href":"/industries/2372","metricLabel":"Revenue HHI","metricValue":"D","detail":"4.1K firms / 17.8B revenue","status":"disclosure withheld","year":2022,"color":"#f59e0b","searchText":"2372 land subdivision 23","connectionCount":3,"x":450,"y":112,"distance":1,"radius":11,"labelVisible":true},{"id":"industry:237210","kind":"industry","label":"Land subdivision","shortLabel":"237210 Land subdivision","description":"2022 Economic Census employer-firm concentration screen for NAICS 237210.","href":"/industries/237210","metricLabel":"Revenue HHI","metricValue":"D","detail":"4.1K firms / 17.8B revenue","status":"disclosure withheld","year":2022,"color":"#f59e0b","searchText":"237210 land subdivision 23","connectionCount":3,"x":578.172,"y":334,"distance":1,"radius":11,"labelVisible":true},{"id":"source:census-ecnsize-concentration-2022","kind":"source","label":"2022 Economic Census Concentration of Largest Firms","shortLabel":"U.S. Census Bureau","description":"Economy-wide national firm concentration statistics by 2022 NAICS industry including revenue-based HHI and largest-firm concentration ratios.","href":"/sources/census-ecnsize-concentration-2022","metricLabel":"Access date","metricValue":"2026-07-17","detail":"U.S. Census Bureau","status":"public dataset","year":2026,"color":"#64748b","searchText":"census-ecnsize-concentration-2022 2022 economic census concentration of largest firms u.s. census bureau economy-wide national firm concentration statistics by 2022 naics industry including revenue-based hhi and largest-firm concentration ratios. u.s. census bureau, 2022 economic census, ec2200sizeconcen: selected sectors - concentration of largest firms for the united states, released april 2025. public_dataset","connectionCount":1872,"x":321.828,"y":334,"distance":1,"radius":11,"labelVisible":true}],"rows":[{"id":"industry-hierarchy:23721:2372","layer":"measurement","relationshipType":"industry_hierarchy","relationshipLabel":"NAICS parent classification","fromId":"industry:23721","fromKind":"industry","fromLabel":"Land subdivision","fromHref":"/industries/23721","toId":"industry:2372","toKind":"industry","toLabel":"Land subdivision","toHref":"/industries/2372","evidenceLabel":"2022 NAICS hierarchy","evidenceDetail":"Land subdivision (NAICS 23721) is classified under Land subdivision (NAICS 2372) in the 2022 NAICS hierarchy.","sourceId":"census-ecnsize-concentration-2022","sourceUrl":"https://www2.census.gov/programs-surveys/economic-census/data/2022/sector00/EC2200SIZECONCEN.zip","confidenceLevel":"high","indicatorId":null,"entityCode":null,"observationCount":null,"firstYear":null,"latestYear":null,"preferredView":null,"sourceIds":null,"guardrail":"A NAICS parent-child link records Census classification ancestry; it does not establish product substitutability, a legal antitrust market, or competitive effects."},{"id":"industry-hierarchy:237210:23721","layer":"measurement","relationshipType":"industry_hierarchy","relationshipLabel":"NAICS parent classification","fromId":"industry:237210","fromKind":"industry","fromLabel":"Land subdivision","fromHref":"/industries/237210","toId":"industry:23721","toKind":"industry","toLabel":"Land subdivision","toHref":"/industries/23721","evidenceLabel":"2022 NAICS hierarchy","evidenceDetail":"Land subdivision (NAICS 237210) is classified under Land subdivision (NAICS 23721) in the 2022 NAICS hierarchy.","sourceId":"census-ecnsize-concentration-2022","sourceUrl":"https://www2.census.gov/programs-surveys/economic-census/data/2022/sector00/EC2200SIZECONCEN.zip","confidenceLevel":"high","indicatorId":null,"entityCode":null,"observationCount":null,"firstYear":null,"latestYear":null,"preferredView":null,"sourceIds":null,"guardrail":"A NAICS parent-child link records Census classification ancestry; it does not establish product substitutability, a legal antitrust market, or competitive effects."},{"id":"industry-source:2372:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:2372","fromKind":"industry","fromLabel":"Land subdivision","fromHref":"/industries/2372","toId":"source:census-ecnsize-concentration-2022","toKind":"source","toLabel":"2022 Economic Census Concentration of Largest Firms","toHref":"/sources/census-ecnsize-concentration-2022","evidenceLabel":"U.S. Census Bureau","evidenceDetail":"2022 Economic Census Concentration of Largest Firms supplies the 2022 employer-firm concentration screen for NAICS 2372.","sourceId":"census-ecnsize-concentration-2022","sourceUrl":"https://www2.census.gov/programs-surveys/economic-census/data/2022/sector00/EC2200SIZECONCEN.zip","confidenceLevel":"high","indicatorId":null,"entityCode":null,"observationCount":null,"firstYear":null,"latestYear":null,"preferredView":null,"sourceIds":null,"guardrail":"The Census source supports an industry screening row, not a legal antitrust market finding."},{"id":"industry-source:23721:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:23721","fromKind":"industry","fromLabel":"Land subdivision","fromHref":"/industries/23721","toId":"source:census-ecnsize-concentration-2022","toKind":"source","toLabel":"2022 Economic Census Concentration of Largest Firms","toHref":"/sources/census-ecnsize-concentration-2022","evidenceLabel":"U.S. Census Bureau","evidenceDetail":"2022 Economic Census Concentration of Largest Firms supplies the 2022 employer-firm concentration screen for NAICS 23721.","sourceId":"census-ecnsize-concentration-2022","sourceUrl":"https://www2.census.gov/programs-surveys/economic-census/data/2022/sector00/EC2200SIZECONCEN.zip","confidenceLevel":"high","indicatorId":null,"entityCode":null,"observationCount":null,"firstYear":null,"latestYear":null,"preferredView":null,"sourceIds":null,"guardrail":"The Census source supports an industry screening row, not a legal antitrust market finding."},{"id":"industry-source:237210:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:237210","fromKind":"industry","fromLabel":"Land subdivision","fromHref":"/industries/237210","toId":"source:census-ecnsize-concentration-2022","toKind":"source","toLabel":"2022 Economic Census Concentration of Largest Firms","toHref":"/sources/census-ecnsize-concentration-2022","evidenceLabel":"U.S. Census Bureau","evidenceDetail":"2022 Economic Census Concentration of Largest Firms supplies the 2022 employer-firm concentration screen for NAICS 237210.","sourceId":"census-ecnsize-concentration-2022","sourceUrl":"https://www2.census.gov/programs-surveys/economic-census/data/2022/sector00/EC2200SIZECONCEN.zip","confidenceLevel":"high","indicatorId":null,"entityCode":null,"observationCount":null,"firstYear":null,"latestYear":null,"preferredView":null,"sourceIds":null,"guardrail":"The Census source supports an industry screening row, not a legal antitrust market finding."}]}