{"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":"measurement","layerMatched":true,"left":"industry:334513","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":18549,"ledgerEdgeCount":7,"leftNeighborCount":4,"pathLimitReached":false,"rightNeighborCount":1868,"sharedNeighborCount":3,"shortestHopCount":1,"shortestPathCount":1},"endpoints":{"left":{"id":"industry:334513","kind":"industry","label":"Instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables","shortLabel":"334513 Instruments and...","description":"2022 Economic Census employer-firm concentration screen for NAICS 334513.","href":"/industries/334513","metricLabel":"Revenue HHI","metricValue":"297.1","detail":"841 firms / 14.2B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"334513 instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables 31","connectionCount":4},"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:334513:census-ecnsize-concentration-2022","edges":[{"id":"industry-source:334513:census-ecnsize-concentration-2022","type":"industry_source","layer":"measurement","from":"industry:334513","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 334513.","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:334513","kind":"industry","label":"Instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables","shortLabel":"334513 Instruments and...","description":"2022 Economic Census employer-firm concentration screen for NAICS 334513.","href":"/industries/334513","metricLabel":"Revenue HHI","metricValue":"297.1","detail":"841 firms / 14.2B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"334513 instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables 31","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}]}],"sharedNeighbors":[{"leftEdges":[{"id":"industry-hierarchy:334513:33451","type":"industry_hierarchy","layer":"measurement","from":"industry:334513","to":"industry:33451","label":"NAICS parent classification","detail":"Instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables (NAICS 334513) is classified under Navigational, measuring, electromedical, and control instruments manufacturing (NAICS 33451) 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:33451","kind":"industry","label":"Navigational, measuring, electromedical, and control instruments manufacturing","shortLabel":"33451 Navigational, me...","description":"2022 Economic Census employer-firm concentration screen for NAICS 33451.","href":"/industries/33451","metricLabel":"Revenue HHI","metricValue":"163.2","detail":"4.4K firms / 168.6B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"33451 navigational, measuring, electromedical, and control instruments manufacturing 31","connectionCount":11},"rightEdges":[{"id":"industry-source:33451:census-ecnsize-concentration-2022","type":"industry_source","layer":"measurement","from":"industry:33451","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 33451.","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":[{"analysis":{"entityCode":"334513","firstYear":2022,"indicatorId":"industry-cr4","latestObservationId":"industry-cr4:334513:2022","latestYear":2022,"observationCount":1,"preferredView":"ranking","sourceIds":["census-ecnsize-concentration-2022"]},"id":"profile-indicator:industry:334513:industry-cr4","type":"profile_indicator","layer":"measurement","from":"industry:334513","to":"indicator:industry-cr4","label":"Observed by indicator","detail":"Instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables has 1 exact Industry CR4 row spanning 2022-2022 across 1 registered source.","evidenceLabel":"Detailed industry CR4 registry","sourceId":"census-ecnsize-concentration-2022","sourceUrl":"https://www2.census.gov/programs-surveys/economic-census/data/2022/sector00/EC2200SIZECONCEN.zip","confidenceLevel":"bounded","guardrail":"A profile-indicator edge records exact rows in one documented indicator contract; it does not make unlike measures comparable, define an antitrust market, or establish a legal or causal conclusion."}],"node":{"id":"indicator:industry-cr4","kind":"indicator","label":"Detailed industry CR4","shortLabel":"Industry CR4","description":"Four-firm share of industry value for six-digit 2022 NAICS industries.","href":"/indicators/industry-cr4","metricLabel":"Observation rows","metricValue":"897","detail":"897 entities / 2022-2022","status":"industries","year":2022,"color":"#06b6d4","searchText":"industry-cr4 detailed industry cr4 industry cr4 four-firm share of industry value for six-digit 2022 naics industries. industries percent","connectionCount":898},"rightEdges":[{"id":"indicator-source:industry-cr4:census-ecnsize-concentration-2022","type":"indicator_source","layer":"measurement","from":"indicator:industry-cr4","to":"source:census-ecnsize-concentration-2022","label":"Indicator source custody","detail":"Published 2022 Economic Census share of industry value held by the four largest firms in a six-digit NAICS statistical industry.","evidenceLabel":"U.S. Census Bureau / 2022 Economic Census Concentration of Largest Firms","sourceId":"census-ecnsize-concentration-2022","sourceUrl":"https://www2.census.gov/programs-surveys/economic-census/data/2022/sector00/EC2200SIZECONCEN.zip","confidenceLevel":"high","guardrail":"A source link records indicator custody and does not extend the source beyond its stated universe, period, or unit."}]},{"leftEdges":[{"analysis":{"entityCode":"334513","firstYear":2022,"indicatorId":"industry-hhi","latestObservationId":"industry-hhi:334513:2022","latestYear":2022,"observationCount":1,"preferredView":"ranking","sourceIds":["census-ecnsize-concentration-2022"]},"id":"profile-indicator:industry:334513:industry-hhi","type":"profile_indicator","layer":"measurement","from":"industry:334513","to":"indicator:industry-hhi","label":"Observed by indicator","detail":"Instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables has 1 exact Industry HHI row spanning 2022-2022 across 1 registered source.","evidenceLabel":"Detailed industry HHI registry","sourceId":"census-ecnsize-concentration-2022","sourceUrl":"https://www2.census.gov/programs-surveys/economic-census/data/2022/sector00/EC2200SIZECONCEN.zip","confidenceLevel":"bounded","guardrail":"A profile-indicator edge records exact rows in one documented indicator contract; it does not make unlike measures comparable, define an antitrust market, or establish a legal or causal conclusion."}],"node":{"id":"indicator:industry-hhi","kind":"indicator","label":"Detailed industry HHI","shortLabel":"Industry HHI","description":"Published HHI for six-digit 2022 NAICS industries in the Economic Census.","href":"/indicators/industry-hhi","metricLabel":"Observation rows","metricValue":"679","detail":"679 entities / 2022-2022","status":"industries","year":2022,"color":"#06b6d4","searchText":"industry-hhi detailed industry hhi industry hhi published hhi for six-digit 2022 naics industries in the economic census. industries hhi (0-10,000)","connectionCount":698},"rightEdges":[{"id":"indicator-source:industry-hhi:census-ecnsize-concentration-2022","type":"indicator_source","layer":"measurement","from":"indicator:industry-hhi","to":"source:census-ecnsize-concentration-2022","label":"Indicator source custody","detail":"Published 2022 Economic Census HHI for a six-digit NAICS statistical industry.","evidenceLabel":"U.S. Census Bureau / 2022 Economic Census Concentration of Largest Firms","sourceId":"census-ecnsize-concentration-2022","sourceUrl":"https://www2.census.gov/programs-surveys/economic-census/data/2022/sector00/EC2200SIZECONCEN.zip","confidenceLevel":"high","guardrail":"A source link records indicator custody and does not extend the source beyond its stated universe, period, or unit."}]}],"nodes":[{"id":"indicator:industry-cr4","kind":"indicator","label":"Detailed industry CR4","shortLabel":"Industry CR4","description":"Four-firm share of industry value for six-digit 2022 NAICS industries.","href":"/indicators/industry-cr4","metricLabel":"Observation rows","metricValue":"897","detail":"897 entities / 2022-2022","status":"industries","year":2022,"color":"#06b6d4","searchText":"industry-cr4 detailed industry cr4 industry cr4 four-firm share of industry value for six-digit 2022 naics industries. industries percent","connectionCount":898},{"id":"indicator:industry-hhi","kind":"indicator","label":"Detailed industry HHI","shortLabel":"Industry HHI","description":"Published HHI for six-digit 2022 NAICS industries in the Economic Census.","href":"/indicators/industry-hhi","metricLabel":"Observation rows","metricValue":"679","detail":"679 entities / 2022-2022","status":"industries","year":2022,"color":"#06b6d4","searchText":"industry-hhi detailed industry hhi industry hhi published hhi for six-digit 2022 naics industries in the economic census. industries hhi (0-10,000)","connectionCount":698},{"id":"industry:334513","kind":"industry","label":"Instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables","shortLabel":"334513 Instruments and...","description":"2022 Economic Census employer-firm concentration screen for NAICS 334513.","href":"/industries/334513","metricLabel":"Revenue HHI","metricValue":"297.1","detail":"841 firms / 14.2B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"334513 instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables 31","connectionCount":4},{"id":"industry:33451","kind":"industry","label":"Navigational, measuring, electromedical, and control instruments manufacturing","shortLabel":"33451 Navigational, me...","description":"2022 Economic Census employer-firm concentration screen for NAICS 33451.","href":"/industries/33451","metricLabel":"Revenue HHI","metricValue":"163.2","detail":"4.4K firms / 168.6B revenue","status":"published","year":2022,"color":"#f59e0b","searchText":"33451 navigational, measuring, electromedical, and control instruments manufacturing 31","connectionCount":11},{"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":"indicator-source:industry-cr4:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"indicator_source","relationshipLabel":"Indicator source custody","fromId":"indicator:industry-cr4","fromKind":"indicator","fromLabel":"Detailed industry CR4","fromHref":"/indicators/industry-cr4","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 / 2022 Economic Census Concentration of Largest Firms","evidenceDetail":"Published 2022 Economic Census share of industry value held by the four largest firms in a six-digit NAICS statistical industry.","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 source link records indicator custody and does not extend the source beyond its stated universe, period, or unit."},{"id":"indicator-source:industry-hhi:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"indicator_source","relationshipLabel":"Indicator source custody","fromId":"indicator:industry-hhi","fromKind":"indicator","fromLabel":"Detailed industry HHI","fromHref":"/indicators/industry-hhi","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 / 2022 Economic Census Concentration of Largest Firms","evidenceDetail":"Published 2022 Economic Census HHI for a six-digit NAICS statistical industry.","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 source link records indicator custody and does not extend the source beyond its stated universe, period, or unit."},{"id":"industry-hierarchy:334513:33451","layer":"measurement","relationshipType":"industry_hierarchy","relationshipLabel":"NAICS parent classification","fromId":"industry:334513","fromKind":"industry","fromLabel":"Instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables","fromHref":"/industries/334513","toId":"industry:33451","toKind":"industry","toLabel":"Navigational, measuring, electromedical, and control instruments manufacturing","toHref":"/industries/33451","evidenceLabel":"2022 NAICS hierarchy","evidenceDetail":"Instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables (NAICS 334513) is classified under Navigational, measuring, electromedical, and control instruments manufacturing (NAICS 33451) 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:33451:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:33451","fromKind":"industry","fromLabel":"Navigational, measuring, electromedical, and control instruments manufacturing","fromHref":"/industries/33451","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 33451.","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:334513:census-ecnsize-concentration-2022","layer":"measurement","relationshipType":"industry_source","relationshipLabel":"Economic Census source","fromId":"industry:334513","fromKind":"industry","fromLabel":"Instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables","fromHref":"/industries/334513","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 334513.","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":"profile-indicator:industry:334513:industry-cr4","layer":"measurement","relationshipType":"profile_indicator","relationshipLabel":"Observed by indicator","fromId":"industry:334513","fromKind":"industry","fromLabel":"Instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables","fromHref":"/industries/334513","toId":"indicator:industry-cr4","toKind":"indicator","toLabel":"Detailed industry CR4","toHref":"/indicators/industry-cr4","evidenceLabel":"Detailed industry CR4 registry","evidenceDetail":"Instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables has 1 exact Industry CR4 row spanning 2022-2022 across 1 registered source.","sourceId":"census-ecnsize-concentration-2022","sourceUrl":"https://www2.census.gov/programs-surveys/economic-census/data/2022/sector00/EC2200SIZECONCEN.zip","confidenceLevel":"bounded","indicatorId":"industry-cr4","entityCode":"334513","observationCount":1,"firstYear":2022,"latestYear":2022,"preferredView":"ranking","sourceIds":"census-ecnsize-concentration-2022","guardrail":"A profile-indicator edge records exact rows in one documented indicator contract; it does not make unlike measures comparable, define an antitrust market, or establish a legal or causal conclusion."},{"id":"profile-indicator:industry:334513:industry-hhi","layer":"measurement","relationshipType":"profile_indicator","relationshipLabel":"Observed by indicator","fromId":"industry:334513","fromKind":"industry","fromLabel":"Instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables","fromHref":"/industries/334513","toId":"indicator:industry-hhi","toKind":"indicator","toLabel":"Detailed industry HHI","toHref":"/indicators/industry-hhi","evidenceLabel":"Detailed industry HHI registry","evidenceDetail":"Instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables has 1 exact Industry HHI row spanning 2022-2022 across 1 registered source.","sourceId":"census-ecnsize-concentration-2022","sourceUrl":"https://www2.census.gov/programs-surveys/economic-census/data/2022/sector00/EC2200SIZECONCEN.zip","confidenceLevel":"bounded","indicatorId":"industry-hhi","entityCode":"334513","observationCount":1,"firstYear":2022,"latestYear":2022,"preferredView":"ranking","sourceIds":"census-ecnsize-concentration-2022","guardrail":"A profile-indicator edge records exact rows in one documented indicator contract; it does not make unlike measures comparable, define an antitrust market, or establish a legal or causal conclusion."}]}