{"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:4883","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":7,"plottedEdgeCount":11,"plottedNodeCount":7,"hiddenNodeCount":0,"directNeighborCount":6},"focusNode":{"id":"industry:4883","kind":"industry","label":"Support activities for water transportation","shortLabel":"4883 Support activitie...","description":"2022 Economic Census employer-firm concentration screen for NAICS 4883.","href":"/industries/4883","metricLabel":"Revenue HHI","metricValue":"173.5","detail":"2K firms / 22.7B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"4883 support activities for water transportation 48","connectionCount":6},"nodes":[{"id":"industry:4883","kind":"industry","label":"Support activities for water transportation","shortLabel":"4883 Support activitie...","description":"2022 Economic Census employer-firm concentration screen for NAICS 4883.","href":"/industries/4883","metricLabel":"Revenue HHI","metricValue":"173.5","detail":"2K firms / 22.7B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"4883 support activities for water transportation 48","connectionCount":6,"distance":0,"labelVisible":true,"radius":20,"x":450,"y":260},{"id":"industry:488","kind":"industry","label":"Support activities for transportation","shortLabel":"488 Support activities...","description":"2022 Economic Census employer-firm concentration screen for NAICS 488.","href":"/industries/488","metricLabel":"Revenue HHI","metricValue":"19.3","detail":"37.9K firms / 223.9B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"488 support activities for transportation 48","connectionCount":8,"x":450,"y":112,"distance":1,"radius":11,"labelVisible":true},{"id":"industry:48832","kind":"industry","label":"Marine cargo handling","shortLabel":"48832 Marine cargo han...","description":"2022 Economic Census employer-firm concentration screen for NAICS 48832.","href":"/industries/48832","metricLabel":"Revenue HHI","metricValue":"592.9","detail":"270 firms / 10.6B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"48832 marine cargo handling 48","connectionCount":3,"x":578.172,"y":186,"distance":1,"radius":11,"labelVisible":true},{"id":"industry:48833","kind":"industry","label":"Navigational services to shipping","shortLabel":"48833 Navigational ser...","description":"2022 Economic Census employer-firm concentration screen for NAICS 48833.","href":"/industries/48833","metricLabel":"Revenue HHI","metricValue":"163.5","detail":"936 firms / 5B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"48833 navigational services to shipping 48","connectionCount":3,"x":578.172,"y":334,"distance":1,"radius":11,"labelVisible":true},{"id":"industry:48839","kind":"industry","label":"Other support activities for water transportation","shortLabel":"48839 Other support ac...","description":"2022 Economic Census employer-firm concentration screen for NAICS 48839.","href":"/industries/48839","metricLabel":"Revenue HHI","metricValue":"251","detail":"617 firms / 2.6B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"48839 other support activities for water transportation 48","connectionCount":3,"x":450,"y":408,"distance":1,"radius":11,"labelVisible":true},{"id":"industry:48831","kind":"industry","label":"Port and harbor operations","shortLabel":"48831 Port and harbor...","description":"2022 Economic Census employer-firm concentration screen for NAICS 48831.","href":"/industries/48831","metricLabel":"Revenue HHI","metricValue":"600.8","detail":"263 firms / 4.4B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"48831 port and harbor operations 48","connectionCount":3,"x":321.828,"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":186,"distance":1,"radius":11,"labelVisible":true}],"rows":[{"id":"industry-hierarchy:4883:488","layer":"measurement","relationshipType":"industry_hierarchy","relationshipLabel":"NAICS parent classification","fromId":"industry:4883","fromKind":"industry","fromLabel":"Support activities for water transportation","fromHref":"/industries/4883","toId":"industry:488","toKind":"industry","toLabel":"Support activities for transportation","toHref":"/industries/488","evidenceLabel":"2022 NAICS hierarchy","evidenceDetail":"Support activities for water transportation (NAICS 4883) is classified under Support activities for transportation (NAICS 488) 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:48831:4883","layer":"measurement","relationshipType":"industry_hierarchy","relationshipLabel":"NAICS parent classification","fromId":"industry:48831","fromKind":"industry","fromLabel":"Port and harbor operations","fromHref":"/industries/48831","toId":"industry:4883","toKind":"industry","toLabel":"Support activities for water transportation","toHref":"/industries/4883","evidenceLabel":"2022 NAICS hierarchy","evidenceDetail":"Port and harbor operations (NAICS 48831) is classified under Support activities for water transportation (NAICS 4883) 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:48832:4883","layer":"measurement","relationshipType":"industry_hierarchy","relationshipLabel":"NAICS parent classification","fromId":"industry:48832","fromKind":"industry","fromLabel":"Marine cargo handling","fromHref":"/industries/48832","toId":"industry:4883","toKind":"industry","toLabel":"Support activities for water transportation","toHref":"/industries/4883","evidenceLabel":"2022 NAICS hierarchy","evidenceDetail":"Marine cargo handling (NAICS 48832) is classified under Support activities for water transportation (NAICS 4883) 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:48833:4883","layer":"measurement","relationshipType":"industry_hierarchy","relationshipLabel":"NAICS parent classification","fromId":"industry:48833","fromKind":"industry","fromLabel":"Navigational services to shipping","fromHref":"/industries/48833","toId":"industry:4883","toKind":"industry","toLabel":"Support activities for water transportation","toHref":"/industries/4883","evidenceLabel":"2022 NAICS hierarchy","evidenceDetail":"Navigational services to shipping (NAICS 48833) is classified under Support activities for water transportation (NAICS 4883) 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:48839:4883","layer":"measurement","relationshipType":"industry_hierarchy","relationshipLabel":"NAICS parent classification","fromId":"industry:48839","fromKind":"industry","fromLabel":"Other support activities for water transportation","fromHref":"/industries/48839","toId":"industry:4883","toKind":"industry","toLabel":"Support activities for water transportation","toHref":"/industries/4883","evidenceLabel":"2022 NAICS hierarchy","evidenceDetail":"Other support activities for water transportation (NAICS 48839) is classified under Support activities for water transportation (NAICS 4883) 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:488:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:488","fromKind":"industry","fromLabel":"Support activities for transportation","fromHref":"/industries/488","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 488.","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:4883:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:4883","fromKind":"industry","fromLabel":"Support activities for water transportation","fromHref":"/industries/4883","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 4883.","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:48831:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:48831","fromKind":"industry","fromLabel":"Port and harbor operations","fromHref":"/industries/48831","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 48831.","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:48832:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:48832","fromKind":"industry","fromLabel":"Marine cargo handling","fromHref":"/industries/48832","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 48832.","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:48833:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:48833","fromKind":"industry","fromLabel":"Navigational services to shipping","fromHref":"/industries/48833","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 48833.","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:48839:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:48839","fromKind":"industry","fromLabel":"Other support activities for water transportation","fromHref":"/industries/48839","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 48839.","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."}]}