Top Contributors by Tenure

2026

2026 Annual Top Non-Government Contributors by Tenure

Rank
ContributorCategoryCountryTenure
icon 1
1
profileRicardo Energy & Environment(opens in new tab)CorporateUnited Kingdom7y 9m
icon 2
2
profileHeidelberg Materials CZ(opens in new tab)CorporateCzech Republic7y 7m
icon 3
3
profileEnvironmental Research Group - King's College London(opens in new tab)EducationUnited Kingdom7y 7m
4
profileImperial County Department of Toxic Substance and Comite Civico del Valle(opens in new tab)Non-profit
7y 7m
5
profileMetropolitan Washington Council of Governments (MWCOG) (opens in new tab)Non-profitUSA7y 7m
6
profileAnonymous(opens in new tab)CorporateIndia7y 7m
7
profileU.S. Embassy in Addis Ababa(opens in new tab)DiplomaticEthiopia7y 7m
8
profileU.S. Consulate General in Hyderabad(opens in new tab)DiplomaticIndia7y 7m
9
profileU.S. Embassy in Kathmandu(opens in new tab)DiplomaticNepal7y 7m
10
profileU.S. Embassy in New Delhi(opens in new tab)DiplomaticIndia7y 7m
11
profileTurun seudun verkko(opens in new tab)CorporateFinland7y 7m
12
profileGonggam Sensors Co., Ltd.(opens in new tab)CorporateSouth Korea7y 7m
13
profileU.S. Department of State Bosnia Herzegovina - Sarajevo(opens in new tab)DiplomaticBosnia Herzegovina7y 7m
14
profileAmerican Pacific International School(opens in new tab)EducationThailand7y 7m
15
profileShrewsbury International School(opens in new tab)EducationThailand7y 7m
16
profileMK(opens in new tab)Individual
7y 7m
17
profileIQAir Global(opens in new tab)Corporate
7y 7m
18
profileHamburger(opens in new tab)IndividualGermany7y 7m
19
profileBangkok Prep International School(opens in new tab)EducationThailand7y 7m
20
profileChiang Mai International School(opens in new tab)EducationThailand7y 7m
21
profileSt Andrews International School Bangkok(opens in new tab)EducationThailand7y 7m
22
profileWeather Busters Pakistan(opens in new tab)Non-profitPakistan7y 6m
23
profileWest Central Airshed Society(opens in new tab)Non-profitCanada7y 3m
24
profilePeace Airshed Zone Association (PAZA)(opens in new tab)Non-profitCanada7y 3m
25
profileGreenpeace Thailand(opens in new tab)Non-profitThailand7y 3m
26
profileCoalition for Clean Air (CCA)(opens in new tab)Non-profit
7y 2m
27
profileWood Buffalo Environmental Association(opens in new tab)Non-profitCanada7y 2m
28
profileLa Petite Ecole - International School(opens in new tab)EducationThailand7y 2m
29
profileLaboratory of Atmospheric Pollution and Environmental Physics (LAPEP)(opens in new tab)EducationGreece7y 2m
30
profileCleanAIRE NC(opens in new tab)Non-profitUSA7y 2m
31
profileMethow Valley Citizens Council (MVCC)(opens in new tab)Non-profitUSA7y 2m
32
profileNorðural (Century Aluminium)(opens in new tab)CorporateIceland7y 2m
33
profileSt. Andrews International School Samakee(opens in new tab)EducationThailand7y 2m
34
profileMontessori Academy Bangkok International School(opens in new tab)EducationThailand7y 2m
35
profileWeber State University (WSU)(opens in new tab)EducationUSA7y 2m
36
profilePortland State University (PSU)(opens in new tab)EducationUSA7y 2m
37
profilePender Harbour Community School(opens in new tab)EducationCanada7y 2m
38
profileMarc Diller(opens in new tab)IndividualUSA7y 2m
39
profileSt. Andrews International School Sukhumvit 107(opens in new tab)EducationThailand7y 2m
40
profileD-PREP International School(opens in new tab)EducationThailand7y 2m
41
profileShrewsbury City Campus(opens in new tab)EducationThailand7y 1m
42
profileClean Air Plan(opens in new tab)Non-profitCanada7y 1m
43
profileInternational Community School(opens in new tab)EducationThailand7y 1m
44
profileGood Time Foundation(opens in new tab)Non-profitThailand7y 1m
45
profileDevasom Resorts(opens in new tab)CorporateThailand7y 1m
46
profileChulalongkorn University Demonstration School(opens in new tab)EducationThailand7y 1m
47
profileBaan Siriporn Resort(opens in new tab)HospitalityThailand7y 1m
48
profileNopputta(opens in new tab)IndividualThailand7y 1m
49
profileChulalongkorn University Demonstration Elementary School(opens in new tab)EducationThailand7y 1m
50
profileUniversity of Northern British Columbia(opens in new tab)EducationCanada7y 1m
51
profileMichael Jones(opens in new tab)IndividualUSA7y 1m
52
profileUTOPIA Fiber(opens in new tab)CorporateUSA7y 1m
53
profileAire Baja California(opens in new tab)Non-profitMexico7y 1m
54
profilenontexan(opens in new tab)IndividualUSA7y 1m
55
profileUniversity of Patras(opens in new tab)EducationGreece7y 1m
56
profile ActiveSGV - Active San Gabriel Valley (opens in new tab)Non-profitUSA7y 1m
57
profileMillbrook Magnet Elementary School(opens in new tab)EducationUSA7y 1m
58
profileNational Air Pollution Surveillance Program(opens in new tab)Non-profitCanada7y 1m
59
profileUniversity of North Carolina at Charlotte (UNC Charlotte)(opens in new tab)EducationUSA7y 1m
60
profileSurreyDan(opens in new tab)IndividualUnited Kingdom7y 1m
61
profileucweather(opens in new tab)IndividualUSA7y 1m
62
profileOKey(opens in new tab)IndividualUSA7y 1m
63
profileBrigham Young University(opens in new tab)EducationUSA7y 1m
64
profileThe University of The Bahamas(opens in new tab)EducationBahamas7y 1m
65
profileBrighton College Bangkok Vibhavadi(opens in new tab)EducationThailand7y 1m
66
profileAnglo Singapore International School(opens in new tab)EducationThailand7y 1m
67
profileThe American School of Bangkok (ASB)(opens in new tab)EducationThailand7y 1m
68
profileSupachot Wangchinda(opens in new tab)IndividualThailand7y 1m
69
profileLuis Alberto Pérez García(opens in new tab)IndividualDenmark7y 1m
70
profileBerkeley International School(opens in new tab)EducationThailand7y 0m
71
profileGWF Air Detective Volunteer(opens in new tab)Non-profitThailand7y 0m
72
profileOutdoor School Bangkok (OSB)(opens in new tab)EducationThailand7y 0m
73
profileIntronics co.ltd.(opens in new tab)CorporateThailand7y 0m
74
profilePhol Dhanya PCL(opens in new tab)CorporateThailand7y 0m
75
profilePan-Asia International School(opens in new tab)EducationThailand7y 0m
76
profilepatiora(opens in new tab)IndividualThailand7y 0m
77
profileYip In Tsoi Group(opens in new tab)CorporateThailand7y 0m
78
profileHeathfield International School(opens in new tab)EducationThailand7y 0m
79
profileFort Air Partnership(opens in new tab)Non-profitCanada7y 0m
80
profileMB(opens in new tab)IndividualSwitzerland7y 0m
81
profileSomdul Bee Sanctuary(opens in new tab)Non-profitThailand7y 0m
82
profileThana(opens in new tab)IndividualThailand7y 0m
83
profileHua Hin International School(opens in new tab)EducationThailand6y 11m
84
profileHappy & Healthy Bike Lane(opens in new tab)CorporateThailand6y 11m
85
profileHans G.(opens in new tab)IndividualThailand6y 11m
86
profileLetiste Praha, a.s(opens in new tab)CorporateCzech Republic6y 11m
87
profileLinkTree(opens in new tab)IndividualIsrael6y 11m
88
profileBONEVET Kacanik(opens in new tab)Non-profitKosovo6y 11m
89
profileUtah State University (USU)(opens in new tab)EducationUSA6y 11m
90
profileSISB School(opens in new tab)EducationThailand6y 11m
91
profileAires Nuevos(opens in new tab)Non-profit
6y 11m
92
profileIPKO Telecommunications L.L.C(opens in new tab)CorporateKosovo6y 11m
93
profileCat Motors(opens in new tab)CorporateThailand6y 11m
94
profileTara Pattana International School(opens in new tab)EducationThailand6y 10m
95
profileIEEE Thailand Section SIGHT(opens in new tab)EducationThailand6y 10m
96
profileCharter International School(opens in new tab)EducationThailand6y 10m
97
profileMCRS [Mareeruk Chiang Rai School](opens in new tab)EducationThailand6y 9m
98
profileAISB Campus (Soi31)(opens in new tab)EducationThailand6y 9m
99
profileLakeland Industry & Community Association (LICA)(opens in new tab)Non-profitCanada6y 9m
100
profileBay Developments Ltd.(opens in new tab)CorporateBangladesh6y 8m
101
profileCurtis Hendricks(opens in new tab)IndividualUSA6y 8m
102
profileSansiri(opens in new tab)CorporateThailand6y 8m
103
profileFranca Hoppe(opens in new tab)IndividualGermany6y 7m
104
profileAssegaf Hamzah & Partners(opens in new tab)CorporateIndonesia6y 6m
105
profileCM Mediclinic(opens in new tab)HealthcareThailand6y 6m
106
profileLumi Clinic(opens in new tab)HealthcareIndonesia6y 6m
107
profileLMJ.my.id(opens in new tab)EducationIndonesia6y 6m
108
profilearstose(opens in new tab)IndividualPoland6y 6m
109
profileLang Hong Goldsmith(opens in new tab)CorporateThailand6y 6m
110
profileLadawan Kaset-Nawamin(opens in new tab)IndividualThailand6y 6m
111
profileUniversity of Nicosia (opens in new tab)EducationCyprus6y 6m
112
profileUnited Nations in Lao PDR(opens in new tab)Non-profitLaos6y 5m
113
profilePANACEA(opens in new tab)EducationGreece6y 5m
114
profileU.S. Consulate in Dubai(opens in new tab)DiplomaticUnited Arab Emirates6y 5m
115
profileidsMED(opens in new tab)CorporateIndonesia6y 5m
116
profileSiam Hospital Supply Co., Ltd.(opens in new tab)CorporateThailand6y 4m
117
profileNhà Thông minh ThangYen.Net(opens in new tab)IndividualVietnam6y 4m
118
profileChristophe(opens in new tab)IndividualBelgium6y 4m
119
profilejinkjunk(opens in new tab)IndividualThailand6y 3m
120
profileAnonymous(opens in new tab)IndividualPakistan6y 3m
121
profileหมอจิรรุจน์(opens in new tab)HospitalityThailand6y 3m

Community Overview

Contributors

20183

Stations

34265

Countries

143

Cities

11474

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