Open data · Coverage ledger
Every source, measured by snapshot.
Each source reports its dated processing snapshot. Coverage percentages appear only when an authoritative denominator is recorded; source-size estimates are never treated as denominators.
| Source | Approval | Content | Estimated source records | Latest authoritative coverage |
|---|---|---|---|---|
Ikoma City designated sewer-drainage equipment contractors japan-ikoma-city-sewer-drainage-contractors | approved_candidate | companies, certifications | 96 | no snapshot |
Nobeoka City designated water-supply equipment contractors japan-nobeoka-city-water-supply-contractors | approved_candidate | companies, certifications | 93 | no snapshot |
Toyota City designated water-supply and sewer-drainage contractors japan-toyota-city-water-sewer-contractors | approved_candidate | companies, certifications | 295 | no snapshot |
Kumamoto Prefecture registered septic-tank maintenance businesses japan-kumamoto-prefecture-septic-tank-maintenance-businesses | approved_candidate | companies, certifications | 90 | no snapshot |
Oita Prefecture registered septic-tank maintenance businesses japan-oita-prefecture-septic-tank-maintenance-businesses | approved_candidate | companies, certifications | 95 | no snapshot |
Moka City designated sewer-drainage equipment contractors japan-moka-city-sewer-drainage-contractors | approved_candidate | companies, certifications | 142 | no snapshot |
Oita City designated sewer-drainage equipment contractors japan-oita-city-sewer-drainage-contractors | approved_candidate | companies, certifications | 177 | no snapshot |
Moka City designated water-supply contractors japan-moka-city-water-supply-contractors | approved_candidate | companies, certifications | 166 | no snapshot |
Shizuoka City septic-sludge collection and septic-tank cleaning permit holders japan-shizuoka-city-septic-sludge-cleaners | approved_candidate | companies, certifications | 13 | no snapshot |
Miyazaki City designated sewer-drainage equipment contractors japan-miyazaki-city-sewer-drainage-contractors | approved_candidate | companies, certifications | 142 | no snapshot |
Miyazaki City designated water-supply installation contractors japan-miyazaki-city-water-supply-installers | approved_candidate | companies, certifications | 4 | no snapshot |
Miyazaki City registered septic-tank maintenance businesses japan-miyazaki-city-septic-tank-maintenance-businesses | approved_candidate | companies, certifications | 27 | no snapshot |
Shizuoka City registered septic-tank maintenance businesses japan-shizuoka-city-septic-tank-maintenance-businesses | approved_candidate | companies, certifications | 41 | no snapshot |
Otsu City registered building water-service businesses japan-otsu-building-water-services | approved_candidate | companies, certifications | 14 | no snapshot |
Naha City registered drinking-water storage-tank cleaning offices japan-naha-drinking-water-tank-cleaners | approved_candidate | companies, certifications | 15 | no snapshot |
Shizuoka City registered building water-service businesses japan-shizuoka-city-building-water-services | approved_candidate | companies, certifications | 73 | no snapshot |
Kagawa Prefecture registered building water-service businesses japan-kagawa-building-water-services | approved_candidate | companies, certifications | 67 | no snapshot |
Fukuyama City registered building drain-pipe cleaning businesses japan-fukuyama-building-drain-pipe-cleaners | approved_candidate | companies, certifications | 2 | no snapshot |
Fukuyama City registered building drinking-water quality-testing laboratories japan-fukuyama-drinking-water-quality-laboratories | approved_candidate | companies, certifications | 3 | no snapshot |
Fukuyama City registered drinking-water storage-tank cleaning businesses japan-fukuyama-drinking-water-tank-cleaners | approved_candidate | companies, certifications | 29 | no snapshot |
Taipei City drinking-water testing laboratories taiwan-taipei-drinking-water-laboratories | approved_candidate | companies, certifications | 3 | no snapshot |
Yilan County septage haulers permitted to use the treatment plant taiwan-yilan-septage-haulers | approved_candidate | companies, certifications | 1 | no snapshot |
Philippines PCAB water-infrastructure contractors philippines-pcab-water-infrastructure-contractors | blocked | companies, certifications | — | no snapshot |
Taiwan WRA national water-pipe contractor register taiwan-wra-national-water-pipe-contractors | blocked | companies, certifications | 4,180 | no snapshot |
Singapore BCA ME12 plumbing and sanitary works contractors singapore-bca-me12-plumbing-sanitary-contractors | approved_candidate | companies, certifications | 397 | no snapshot |
Tainan City private water-tanker operators taiwan-tainan-private-water-tanker-operators | approved_candidate | companies | 5 | no snapshot |
Taichung City qualified water-tank and reservoir cleaners taiwan-taichung-qualified-tank-cleaners | approved_candidate | companies, certifications | 1 | no snapshot |
Taiwan Water Corporation qualified water-tank and reservoir cleaners taiwan-water-corporation-qualified-tank-cleaners | approved_candidate | companies, certifications | 9 | no snapshot |
Japan MLIT registered simplified dedicated water-supply inspection institutions japan-mlit-simplified-dedicated-water-supply-inspection-institutions | approved_candidate | companies, certifications | 53 | no snapshot |
Japan MLIT registered sewage-treatment-facility maintenance contractors japan-mlit-sewage-treatment-maintenance-contractors | approved_candidate | companies, certifications | 556 | no snapshot |
Hsinchu City licensed water-pipe installation contractors taiwan-hsinchu-water-pipe-contractors | approved_candidate | companies, certifications | 82 | no snapshot |
Kaohsiung City licensed water-pipe installation contractors taiwan-kaohsiung-water-pipe-contractors | approved_candidate | companies, certifications | 380 | no snapshot |
Tainan City licensed water-pipe installation contractors taiwan-tainan-water-pipe-contractors | approved_candidate | companies, certifications | 237 | no snapshot |
Taipei City licensed water-pipe installation contractors taiwan-taipei-water-pipe-contractors | approved_candidate | companies, certifications | 453 | no snapshot |
Wikidata water-sector frontier wikidata-water | approved_publish | companies, utilities, products, facilities | — | no snapshot |
EPA WaterSense Product Search epa-watersense | approved_publish | companies, products, certifications | — | no snapshot |
EPA WaterSense Manufacturer Lookup epa-watersense-manufacturers | approved_publish | companies, certifications | 522 | no snapshot |
EPA ENERGY STAR Water Product Datasets epa-energy-star-water-products | approved_publish | companies, products, certifications | 2,641 | no snapshot |
EPA SDWIS Community Public Water Systems epa-sdwis-community-water-systems | approved_publish | utilities, facilities | 44,615 | no snapshot |
Korea nationwide water-supply construction contractor registry korea-water-supply-construction-agencies | approved_publish | companies | 1,698 | no snapshot |
Korea Energy Agency water-treatment facility certified products korea-energy-agency-water-treatment-products | approved_publish | companies, products, certifications | 148 | no snapshot |
Korea Environmental Label direct water-product certifications korea-environmental-label-water-products | approved_publish | companies, products, certifications | 5,495 | no snapshot |
K-water nationwide water-industry company status kwater-water-industry-companies | approved_publish | companies, products | 17,580 | no snapshot |
Korea PPS direct water-industry supplier-item registrations korea-pps-water-suppliers | approved_publish | companies | 39,792 | no snapshot |
Korea PPS Venture Nara direct-water product registrations korea-pps-venture-nara-water-products | approved_publish | companies, products, certifications | 322 | no snapshot |
Korea KIAT direct-water materials and components reliability certifications korea-kiat-water-reliability-certifications | approved_publish | companies, products, certifications | 104 | no snapshot |
Korea KEITI water-technology applicant companies korea-keiti-water-technology-applicants | approved_publish | companies | 110 | no snapshot |
Korea KEITI direct-water environmental-technology certifications korea-keiti-water-technology-certifications | approved_publish | companies, utilities, certifications | 230 | no snapshot |
Korea KEITI direct-water environmental-technology validity histories korea-keiti-water-technology-validity | approved_publish | companies, utilities, certifications | 224 | no snapshot |
Korea MSS Water Industry Excellent Product designations korea-mss-water-industry-product-certifications | approved_candidate | companies, certifications | 49 | no snapshot |