{"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:2371","focusMatched":true,"kind":"all","kindMatched":true,"layer":"measurement","layerMatched":true,"query":"","view":"network"},"summary":{"nodeCount":5478,"edgeCount":19193,"sourceCount":45,"profileCount":5433,"nodeKindCount":13,"layerCount":4,"eligibleEdgeCount":18549,"matchedNodeCount":6,"plottedEdgeCount":9,"plottedNodeCount":6,"hiddenNodeCount":0,"directNeighborCount":5},"focusNode":{"id":"industry:2371","kind":"industry","label":"Utility system construction","shortLabel":"2371 Utility system co...","description":"2022 Economic Census employer-firm concentration screen for NAICS 2371.","href":"/industries/2371","metricLabel":"Revenue HHI","metricValue":"63.1","detail":"17.6K firms / 203.9B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"2371 utility system construction 23","connectionCount":5},"nodes":[{"id":"industry:2371","kind":"industry","label":"Utility system construction","shortLabel":"2371 Utility system co...","description":"2022 Economic Census employer-firm concentration screen for NAICS 2371.","href":"/industries/2371","metricLabel":"Revenue HHI","metricValue":"63.1","detail":"17.6K firms / 203.9B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"2371 utility system construction 23","connectionCount":5,"distance":0,"labelVisible":true,"radius":20,"x":450,"y":260},{"id":"industry:237","kind":"industry","label":"Heavy and civil engineering construction","shortLabel":"237 Heavy and civil en...","description":"2022 Economic Census employer-firm concentration screen for NAICS 237.","href":"/industries/237","metricLabel":"Revenue HHI","metricValue":"24.2","detail":"34.9K firms / 416.1B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"237 heavy and civil engineering construction 23","connectionCount":6,"x":450,"y":112,"distance":1,"radius":11,"labelVisible":true},{"id":"industry:23712","kind":"industry","label":"Oil and gas pipeline and related structures construction","shortLabel":"23712 Oil and gas pipe...","description":"2022 Economic Census employer-firm concentration screen for NAICS 23712.","href":"/industries/23712","metricLabel":"Revenue HHI","metricValue":"173.6","detail":"1.8K firms / 44.1B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"23712 oil and gas pipeline and related structures construction 23","connectionCount":3,"x":590.756,"y":214.265,"distance":1,"radius":11,"labelVisible":true},{"id":"industry:23713","kind":"industry","label":"Power and communication line and related structures construction","shortLabel":"23713 Power and commun...","description":"2022 Economic Census employer-firm concentration screen for NAICS 23713.","href":"/industries/23713","metricLabel":"Revenue HHI","metricValue":"156.2","detail":"5.5K firms / 102.9B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"23713 power and communication line and related structures construction 23","connectionCount":3,"x":536.992,"y":379.735,"distance":1,"radius":11,"labelVisible":true},{"id":"industry:23711","kind":"industry","label":"Water and sewer line and related structures construction","shortLabel":"23711 Water and sewer...","description":"2022 Economic Census employer-firm concentration screen for NAICS 23711.","href":"/industries/23711","metricLabel":"Revenue HHI","metricValue":"11.1","detail":"10.4K firms / 56.9B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"23711 water and sewer line and related structures construction 23","connectionCount":3,"x":363.008,"y":379.735,"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":309.244,"y":214.265,"distance":1,"radius":11,"labelVisible":true}],"rows":[{"id":"industry-hierarchy:2371:237","layer":"measurement","relationshipType":"industry_hierarchy","relationshipLabel":"NAICS parent classification","fromId":"industry:2371","fromKind":"industry","fromLabel":"Utility system construction","fromHref":"/industries/2371","toId":"industry:237","toKind":"industry","toLabel":"Heavy and civil engineering construction","toHref":"/industries/237","evidenceLabel":"2022 NAICS hierarchy","evidenceDetail":"Utility system construction (NAICS 2371) is classified under Heavy and civil engineering construction (NAICS 237) 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:23711:2371","layer":"measurement","relationshipType":"industry_hierarchy","relationshipLabel":"NAICS parent classification","fromId":"industry:23711","fromKind":"industry","fromLabel":"Water and sewer line and related structures construction","fromHref":"/industries/23711","toId":"industry:2371","toKind":"industry","toLabel":"Utility system construction","toHref":"/industries/2371","evidenceLabel":"2022 NAICS hierarchy","evidenceDetail":"Water and sewer line and related structures construction (NAICS 23711) is classified under Utility system construction (NAICS 2371) 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:23712:2371","layer":"measurement","relationshipType":"industry_hierarchy","relationshipLabel":"NAICS parent classification","fromId":"industry:23712","fromKind":"industry","fromLabel":"Oil and gas pipeline and related structures construction","fromHref":"/industries/23712","toId":"industry:2371","toKind":"industry","toLabel":"Utility system construction","toHref":"/industries/2371","evidenceLabel":"2022 NAICS hierarchy","evidenceDetail":"Oil and gas pipeline and related structures construction (NAICS 23712) is classified under Utility system construction (NAICS 2371) 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:23713:2371","layer":"measurement","relationshipType":"industry_hierarchy","relationshipLabel":"NAICS parent classification","fromId":"industry:23713","fromKind":"industry","fromLabel":"Power and communication line and related structures construction","fromHref":"/industries/23713","toId":"industry:2371","toKind":"industry","toLabel":"Utility system construction","toHref":"/industries/2371","evidenceLabel":"2022 NAICS hierarchy","evidenceDetail":"Power and communication line and related structures construction (NAICS 23713) is classified under Utility system construction (NAICS 2371) 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:237:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:237","fromKind":"industry","fromLabel":"Heavy and civil engineering construction","fromHref":"/industries/237","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 237.","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:2371:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:2371","fromKind":"industry","fromLabel":"Utility system construction","fromHref":"/industries/2371","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 2371.","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:23711:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:23711","fromKind":"industry","fromLabel":"Water and sewer line and related structures construction","fromHref":"/industries/23711","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 23711.","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:23712:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:23712","fromKind":"industry","fromLabel":"Oil and gas pipeline and related structures construction","fromHref":"/industries/23712","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 23712.","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:23713:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:23713","fromKind":"industry","fromLabel":"Power and communication line and related structures construction","fromHref":"/industries/23713","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 23713.","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."}]}