{"license":"https://creativecommons.org/licenses/by/4.0/","dataset":"atlas","mode":"comparison","updatedThrough":"2026-08-15","guardrail":"A bilateral atlas route preserves a sequence of declared edges for navigation and audit. A direct edge, common neighbor, or multi-hop path does not make the endpoints equivalent, establish ownership or control, assign liability, define an antitrust market, make unlike measures comparable, or show causation.","filters":{"layer":"all","layerMatched":true,"left":"industry:23799","leftMatched":true,"right":"source:census-ecnsize-concentration-2022","rightMatched":true,"view":"paths"},"summary":{"nodeCount":5478,"edgeCount":19193,"sourceCount":1,"profileCount":5433,"nodeKindCount":13,"layerCount":4,"directEdgeCount":1,"disconnected":false,"eligibleEdgeCount":19193,"ledgerEdgeCount":5,"leftNeighborCount":3,"pathLimitReached":false,"rightNeighborCount":1872,"sharedNeighborCount":2,"shortestHopCount":1,"shortestPathCount":1},"endpoints":{"left":{"id":"industry:23799","kind":"industry","label":"Other heavy and civil engineering construction","shortLabel":"23799 Other heavy and...","description":"2022 Economic Census employer-firm concentration screen for NAICS 23799.","href":"/industries/23799","metricLabel":"Revenue HHI","metricValue":"139.4","detail":"4.4K firms / 34B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"23799 other heavy and civil engineering construction 23","connectionCount":3},"right":{"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}},"shortestPaths":[{"id":"path:industry-source:23799:census-ecnsize-concentration-2022","edges":[{"id":"industry-source:23799:census-ecnsize-concentration-2022","type":"industry_source","layer":"measurement","from":"industry:23799","to":"source:census-ecnsize-concentration-2022","label":"Economic Census source","detail":"2022 Economic Census Concentration of Largest Firms supplies the 2022 employer-firm concentration screen for NAICS 23799.","evidenceLabel":"U.S. Census Bureau","sourceId":"census-ecnsize-concentration-2022","sourceUrl":"https://www2.census.gov/programs-surveys/economic-census/data/2022/sector00/EC2200SIZECONCEN.zip","confidenceLevel":"high","guardrail":"The Census source supports an industry screening row, not a legal antitrust market finding."}],"hopCount":1,"nodes":[{"id":"industry:23799","kind":"industry","label":"Other heavy and civil engineering construction","shortLabel":"23799 Other heavy and...","description":"2022 Economic Census employer-firm concentration screen for NAICS 23799.","href":"/industries/23799","metricLabel":"Revenue HHI","metricValue":"139.4","detail":"4.4K firms / 34B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"23799 other heavy and civil engineering construction 23","connectionCount":3},{"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}]}],"sharedNeighbors":[{"leftEdges":[{"id":"industry-hierarchy:23799:2379","type":"industry_hierarchy","layer":"measurement","from":"industry:23799","to":"industry:2379","label":"NAICS parent classification","detail":"Other heavy and civil engineering construction (NAICS 23799) is classified under Other heavy and civil engineering construction (NAICS 2379) in the 2022 NAICS hierarchy.","evidenceLabel":"2022 NAICS hierarchy","sourceId":"census-ecnsize-concentration-2022","sourceUrl":"https://www2.census.gov/programs-surveys/economic-census/data/2022/sector00/EC2200SIZECONCEN.zip","confidenceLevel":"high","guardrail":"A NAICS parent-child link records Census classification ancestry; it does not establish product substitutability, a legal antitrust market, or competitive effects."}],"node":{"id":"industry:2379","kind":"industry","label":"Other heavy and civil engineering construction","shortLabel":"2379 Other heavy and c...","description":"2022 Economic Census employer-firm concentration screen for NAICS 2379.","href":"/industries/2379","metricLabel":"Revenue HHI","metricValue":"139.4","detail":"4.4K firms / 34B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"2379 other heavy and civil engineering construction 23","connectionCount":3},"rightEdges":[{"id":"industry-source:2379:census-ecnsize-concentration-2022","type":"industry_source","layer":"measurement","from":"industry:2379","to":"source:census-ecnsize-concentration-2022","label":"Economic Census source","detail":"2022 Economic Census Concentration of Largest Firms supplies the 2022 employer-firm concentration screen for NAICS 2379.","evidenceLabel":"U.S. Census Bureau","sourceId":"census-ecnsize-concentration-2022","sourceUrl":"https://www2.census.gov/programs-surveys/economic-census/data/2022/sector00/EC2200SIZECONCEN.zip","confidenceLevel":"high","guardrail":"The Census source supports an industry screening row, not a legal antitrust market finding."}]},{"leftEdges":[{"id":"industry-hierarchy:237990:23799","type":"industry_hierarchy","layer":"measurement","from":"industry:237990","to":"industry:23799","label":"NAICS parent classification","detail":"Other heavy and civil engineering construction (NAICS 237990) is classified under Other heavy and civil engineering construction (NAICS 23799) in the 2022 NAICS hierarchy.","evidenceLabel":"2022 NAICS hierarchy","sourceId":"census-ecnsize-concentration-2022","sourceUrl":"https://www2.census.gov/programs-surveys/economic-census/data/2022/sector00/EC2200SIZECONCEN.zip","confidenceLevel":"high","guardrail":"A NAICS parent-child link records Census classification ancestry; it does not establish product substitutability, a legal antitrust market, or competitive effects."}],"node":{"id":"industry:237990","kind":"industry","label":"Other heavy and civil engineering construction","shortLabel":"237990 Other heavy and...","description":"2022 Economic Census employer-firm concentration screen for NAICS 237990.","href":"/industries/237990","metricLabel":"Revenue HHI","metricValue":"139.4","detail":"4.4K firms / 34B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"237990 other heavy and civil engineering construction 23","connectionCount":4},"rightEdges":[{"id":"industry-source:237990:census-ecnsize-concentration-2022","type":"industry_source","layer":"measurement","from":"industry:237990","to":"source:census-ecnsize-concentration-2022","label":"Economic Census source","detail":"2022 Economic Census Concentration of Largest Firms supplies the 2022 employer-firm concentration screen for NAICS 237990.","evidenceLabel":"U.S. Census Bureau","sourceId":"census-ecnsize-concentration-2022","sourceUrl":"https://www2.census.gov/programs-surveys/economic-census/data/2022/sector00/EC2200SIZECONCEN.zip","confidenceLevel":"high","guardrail":"The Census source supports an industry screening row, not a legal antitrust market finding."}]}],"nodes":[{"id":"industry:2379","kind":"industry","label":"Other heavy and civil engineering construction","shortLabel":"2379 Other heavy and c...","description":"2022 Economic Census employer-firm concentration screen for NAICS 2379.","href":"/industries/2379","metricLabel":"Revenue HHI","metricValue":"139.4","detail":"4.4K firms / 34B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"2379 other heavy and civil engineering construction 23","connectionCount":3},{"id":"industry:23799","kind":"industry","label":"Other heavy and civil engineering construction","shortLabel":"23799 Other heavy and...","description":"2022 Economic Census employer-firm concentration screen for NAICS 23799.","href":"/industries/23799","metricLabel":"Revenue HHI","metricValue":"139.4","detail":"4.4K firms / 34B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"23799 other heavy and civil engineering construction 23","connectionCount":3},{"id":"industry:237990","kind":"industry","label":"Other heavy and civil engineering construction","shortLabel":"237990 Other heavy and...","description":"2022 Economic Census employer-firm concentration screen for NAICS 237990.","href":"/industries/237990","metricLabel":"Revenue HHI","metricValue":"139.4","detail":"4.4K firms / 34B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"237990 other heavy and civil engineering construction 23","connectionCount":4},{"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}],"rows":[{"id":"industry-hierarchy:23799:2379","layer":"measurement","relationshipType":"industry_hierarchy","relationshipLabel":"NAICS parent classification","fromId":"industry:23799","fromKind":"industry","fromLabel":"Other heavy and civil engineering construction","fromHref":"/industries/23799","toId":"industry:2379","toKind":"industry","toLabel":"Other heavy and civil engineering construction","toHref":"/industries/2379","evidenceLabel":"2022 NAICS hierarchy","evidenceDetail":"Other heavy and civil engineering construction (NAICS 23799) is classified under Other heavy and civil engineering construction (NAICS 2379) 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:237990:23799","layer":"measurement","relationshipType":"industry_hierarchy","relationshipLabel":"NAICS parent classification","fromId":"industry:237990","fromKind":"industry","fromLabel":"Other heavy and civil engineering construction","fromHref":"/industries/237990","toId":"industry:23799","toKind":"industry","toLabel":"Other heavy and civil engineering construction","toHref":"/industries/23799","evidenceLabel":"2022 NAICS hierarchy","evidenceDetail":"Other heavy and civil engineering construction (NAICS 237990) is classified under Other heavy and civil engineering construction (NAICS 23799) 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:2379:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:2379","fromKind":"industry","fromLabel":"Other heavy and civil engineering construction","fromHref":"/industries/2379","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 2379.","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:23799:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:23799","fromKind":"industry","fromLabel":"Other heavy and civil engineering construction","fromHref":"/industries/23799","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 23799.","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:237990:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:237990","fromKind":"industry","fromLabel":"Other heavy and civil engineering construction","fromHref":"/industries/237990","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 237990.","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."}]}