{"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:33391","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":5,"plottedEdgeCount":7,"plottedNodeCount":5,"hiddenNodeCount":0,"directNeighborCount":4},"focusNode":{"id":"industry:33391","kind":"industry","label":"Pump and compressor manufacturing","shortLabel":"33391 Pump and compres...","description":"2022 Economic Census employer-firm concentration screen for NAICS 33391.","href":"/industries/33391","metricLabel":"Revenue HHI","metricValue":"191.6","detail":"676 firms / 26.8B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"33391 pump and compressor manufacturing 31","connectionCount":4},"nodes":[{"id":"industry:33391","kind":"industry","label":"Pump and compressor manufacturing","shortLabel":"33391 Pump and compres...","description":"2022 Economic Census employer-firm concentration screen for NAICS 33391.","href":"/industries/33391","metricLabel":"Revenue HHI","metricValue":"191.6","detail":"676 firms / 26.8B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"33391 pump and compressor manufacturing 31","connectionCount":4,"distance":0,"labelVisible":true,"radius":20,"x":450,"y":260},{"id":"industry:3339","kind":"industry","label":"Other general purpose machinery manufacturing","shortLabel":"3339 Other general pur...","description":"2022 Economic Census employer-firm concentration screen for NAICS 3339.","href":"/industries/3339","metricLabel":"Revenue HHI","metricValue":"39.4","detail":"5.3K firms / 124.7B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"3339 other general purpose machinery manufacturing 31","connectionCount":5,"x":450,"y":112,"distance":1,"radius":11,"labelVisible":true},{"id":"industry:333912","kind":"industry","label":"Air and gas compressor manufacturing","shortLabel":"333912 Air and gas com...","description":"2022 Economic Census employer-firm concentration screen for NAICS 333912.","href":"/industries/333912","metricLabel":"Revenue HHI","metricValue":"377.8","detail":"238 firms / 8.9B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"333912 air and gas compressor manufacturing 31","connectionCount":4,"x":598,"y":260,"distance":1,"radius":11,"labelVisible":true},{"id":"industry:333914","kind":"industry","label":"Measuring, dispensing, and other pumping equipment manufacturing","shortLabel":"333914 Measuring, disp...","description":"2022 Economic Census employer-firm concentration screen for NAICS 333914.","href":"/industries/333914","metricLabel":"Revenue HHI","metricValue":"294.7","detail":"446 firms / 17.9B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"333914 measuring, dispensing, and other pumping equipment manufacturing 31","connectionCount":4,"x":450,"y":408,"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":302,"y":260,"distance":1,"radius":11,"labelVisible":true}],"rows":[{"id":"industry-hierarchy:33391:3339","layer":"measurement","relationshipType":"industry_hierarchy","relationshipLabel":"NAICS parent classification","fromId":"industry:33391","fromKind":"industry","fromLabel":"Pump and compressor manufacturing","fromHref":"/industries/33391","toId":"industry:3339","toKind":"industry","toLabel":"Other general purpose machinery manufacturing","toHref":"/industries/3339","evidenceLabel":"2022 NAICS hierarchy","evidenceDetail":"Pump and compressor manufacturing (NAICS 33391) is classified under Other general purpose machinery manufacturing (NAICS 3339) 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:333912:33391","layer":"measurement","relationshipType":"industry_hierarchy","relationshipLabel":"NAICS parent classification","fromId":"industry:333912","fromKind":"industry","fromLabel":"Air and gas compressor manufacturing","fromHref":"/industries/333912","toId":"industry:33391","toKind":"industry","toLabel":"Pump and compressor manufacturing","toHref":"/industries/33391","evidenceLabel":"2022 NAICS hierarchy","evidenceDetail":"Air and gas compressor manufacturing (NAICS 333912) is classified under Pump and compressor manufacturing (NAICS 33391) 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:333914:33391","layer":"measurement","relationshipType":"industry_hierarchy","relationshipLabel":"NAICS parent classification","fromId":"industry:333914","fromKind":"industry","fromLabel":"Measuring, dispensing, and other pumping equipment manufacturing","fromHref":"/industries/333914","toId":"industry:33391","toKind":"industry","toLabel":"Pump and compressor manufacturing","toHref":"/industries/33391","evidenceLabel":"2022 NAICS hierarchy","evidenceDetail":"Measuring, dispensing, and other pumping equipment manufacturing (NAICS 333914) is classified under Pump and compressor manufacturing (NAICS 33391) 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:3339:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:3339","fromKind":"industry","fromLabel":"Other general purpose machinery manufacturing","fromHref":"/industries/3339","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 3339.","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:33391:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:33391","fromKind":"industry","fromLabel":"Pump and compressor manufacturing","fromHref":"/industries/33391","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 33391.","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:333912:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:333912","fromKind":"industry","fromLabel":"Air and gas compressor manufacturing","fromHref":"/industries/333912","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 333912.","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:333914:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:333914","fromKind":"industry","fromLabel":"Measuring, dispensing, and other pumping equipment manufacturing","fromHref":"/industries/333914","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 333914.","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."}]}