| 1 | SIA "Rīgas ūdens" | 36 Water collection, treatment and supply | Riga | 22.6 | 10.3 | 765 | +2.9% |
| 2 | SIA "Daugavpils ūdens" | 36 Water collection, treatment and supply | Daugavpils | 3.4 | 1.8 | 254 | +14.5% |
| 3 | SIA "Bauskas novada komunālserviss" | 36 Water collection, treatment and supply | Bauska Municipality | 2.9 | 1.7 | 214 | +217.6% |
| 4 | AS "OLAINES ŪDENS UN SILTUMS" | 36 Water collection, treatment and supply | Olaine Municipality | 2.6 | 1.5 | 189 | +29.5% |
| 5 | SIA "LIEPĀJAS ŪDENS" | 36 Water collection, treatment and supply | Liepāja | 2.2 | 1.3 | 132 | +2.0% |
| 6 | SIA "JELGAVAS ŪDENS" | 36 Water collection, treatment and supply | Jelgava | 1.9 | 1.1 | 95 | +12.4% |
| 7 | SIA "SALDUS KOMUNĀLSERVISS" | 36 Water collection, treatment and supply | Saldus Municipality | 1.4 | 0.8 | 94 | −0.3% |
| 8 | SIA "LNS pakalpojumi" | 36 Water collection, treatment and supply | Ludza Municipality | 1.3 | 0.8 | 157 | +23.1% |
| 9 | Pašvaldības SIA "ŪDEKA" | 36 Water collection, treatment and supply | Ventspils | 1.3 | 0.7 | 80 | +10.4% |
| 10 | SIA "RĒZEKNES ŪDENS" | 36 Water collection, treatment and supply | Rēzekne | 0.9 | 0.5 | 74 | +5.5% |
| 11 | Cēsu pilsētas sabiedrība ar ierobežotu atbildību "VINDA" | 36 Water collection, treatment and supply | Cēsis Municipality | 0.9 | 0.5 | 49 | +21.2% |
| 12 | Pašvaldības sabiedrība ar ierobežotu atbildību "Valgums-S" | 36 Water collection, treatment and supply | Salaspils Municipality | 0.8 | 0.5 | 37 | +15.0% |
| 13 | SIA "TALSU ŪDENS" | 36 Water collection, treatment and supply | Talsi Municipality | 0.8 | 0.4 | 52 | +36.6% |
| 14 | SIA "SALTAVOTS" | 36 Water collection, treatment and supply | Sigulda Municipality | 0.8 | 0.5 | 50 | +31.0% |
| 15 | SIA "Ūdensnesējs Serviss" | 36 Water collection, treatment and supply | Riga | 0.7 | 0.5 | 61 | +4.9% |
| 16 | SIA "DOBELES ŪDENS" | 36 Water collection, treatment and supply | Dobele Municipality | 0.7 | 0.4 | 47 | +10.7% |
| 17 | SIA "Tukuma ūdens" | 36 Water collection, treatment and supply | Tukums Municipality | 0.7 | 0.4 | 35 | +15.9% |
| 18 | SIA "BALOŽU KOMUNĀLĀ SAIMNIECĪBA" | 36 Water collection, treatment and supply | Ķekava Municipality | 0.6 | 0.4 | 56 | +43.0% |
| 19 | SIA "Madonas ūdens" | 36 Water collection, treatment and supply | Madona Municipality | 0.6 | 0.4 | 39 | +38.7% |
| 20 | SIA "Ādažu ūdens" | 36 Water collection, treatment and supply | Ādaži Municipality | 0.6 | 0.3 | 26 | +28.5% |
| 21 | SIA "KULDĪGAS ŪDENS" | 36 Water collection, treatment and supply | Kuldīga Municipality | 0.5 | 0.3 | 35 | +7.7% |
| 22 | SIA "Saulkrastu komunālserviss" | 36 Water collection, treatment and supply | Saulkrasti Municipality | 0.4 | 0.3 | 27 | +5.9% |
| 23 | SIA "LK Komunālie pakalpojumi" | 36 Water collection, treatment and supply | Aizkraukle Municipality | 0.4 | 0.2 | 40 | +16.9% |
| 24 | SIA "SKRUNDAS KOMUNĀLĀ SAIMNIECĪBA" | 36 Water collection, treatment and supply | Kuldīga Municipality | 0.4 | 0.2 | 40 | +19.3% |
| 25 | SIA "Kandavas komunālie pakalpojumi" | 36 Water collection, treatment and supply | Tukums Municipality | 0.3 | 0.1 | 29 | −2.4% |
| 26 | SIA WWTP Latvia | 36 Water collection, treatment and supply | Riga | 0.3 | 0.1 | 10 | +36.0% |
| 27 | SIA "RŪPE" | 36 Water collection, treatment and supply | Alūksne Municipality | 0.3 | 0.2 | 29 | +7.7% |
| 28 | SIA "KARME FILTRS" | 36 Water collection, treatment and supply | Riga | 0.3 | 0.1 | 22 | +30.3% |
| 29 | Aizkraukles novada sabiedrība ar ierobežotu atbildību "Aizkraukles ūdens" | 36 Water collection, treatment and supply | Aizkraukle Municipality | 0.3 | 0.1 | 18 | +3.7% |
| 30 | SIA "Komunālserviss TILDe" | 36 Water collection, treatment and supply | Tukums Municipality | 0.3 | 0.3 | 54 | −30.8% |
| 31 | SIA "KOCĒNU KOMUNĀLĀ SAIMNIECĪBA" | 36 Water collection, treatment and supply | Valmiera Municipality | 0.2 | 0.1 | 11 | +7.2% |
| 32 | SIA "BŪKS" | 36 Water collection, treatment and supply | Ķekava Municipality | 0.2 | 0.1 | 22 | −7.3% |
| 33 | SIA "Ūdens risinājumi" | 36 Water collection, treatment and supply | Riga | 0.2 | 0.1 | 19 | +8.6% |
| 34 | "ŪDENS BŪVE" SIA | 36 Water collection, treatment and supply | Riga | 0.2 | 0.1 | 10 | +55.8% |
| 35 | Pašvaldības SIA "Garkalnes inženiertīkli" | 36 Water collection, treatment and supply | Ropaži Municipality | 0.2 | 0.1 | 16 | +198.7% |
| 36 | SIA "Salacgrīvas ūdens" | 36 Water collection, treatment and supply | Limbaži Municipality | 0.2 | 0.1 | 8 | −2.4% |
| 37 | SIA "Water Filters Latvia" | 36 Water collection, treatment and supply | Jelgava | 0.1 | 0.1 | 8 | +4.8% |
| 38 | SIA "Aknīstes Pakalpojumi" | 36 Water collection, treatment and supply | Jēkabpils Municipality | 0.1 | 0.1 | 18 | +34.7% |
| 39 | SIA Ūdens Enerģija | 36 Water collection, treatment and supply | Ķekava Municipality | 0.1 | 0.0 | 5 | +32.2% |
| 40 | SIA "Līgatnes komunālserviss" | 36 Water collection, treatment and supply | Cēsis Municipality | 0.1 | 0.1 | 15 | −60.5% |
| 41 | SIA Baltic Water | 36 Water collection, treatment and supply | Riga | 0.1 | 0.0 | 5 | −62.4% |
| 42 | SIA "Rīgas Siltum Serviss" | 36 Water collection, treatment and supply | Riga | 0.1 | 0.0 | 4 | −14.2% |
| 43 | SIA "Janovskis & Co" | 36 Water collection, treatment and supply | Ogre Municipality | 0.0 | 0.1 | 11 | +51.8% |
| 44 | SIA "ĀNE EP" | 36 Water collection, treatment and supply | Jelgava Municipality | 0.0 | 0.0 | 6 | +1.5% |
| 45 | SIA "VIGO" | 36 Water collection, treatment and supply | Cēsis Municipality | 0.0 | 0.0 | 6 | +35.2% |
| 46 | SIA "Cesvaines komunālie pakalpojumi" | 36 Water collection, treatment and supply | Madona Municipality | 0.0 | 0.0 | 3 | −8.5% |
| 47 | SIA "ReWater" | 36 Water collection, treatment and supply | Limbaži Municipality | 0.0 | 0.0 | 4 | +39.7% |
| 48 | SIA "LK Baltics" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 5 | −42.0% |
| 49 | SIA "H2O Pluss" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 4 | −8.6% |
| 50 | SIA "SAN-TEH" | 36 Water collection, treatment and supply | Olaine Municipality | 0.0 | 0.0 | 3 | +146.7% |
| 51 | SIA "Akas serviss.lv" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 2 | +2,493.8% |
| 52 | SIA "TīrsŪdens.LV" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 2 | −36.7% |
| 53 | SIA "Domos serviss" | 36 Water collection, treatment and supply | Limbaži Municipality | 0.0 | 0.0 | 2 | +15.2% |
| 54 | SIA Water Works | 36 Water collection, treatment and supply | Jūrmala | 0.0 | 0.0 | 3 | +140.8% |
| 55 | SIA "TM33" | 36 Water collection, treatment and supply | Mārupe Municipality | 0.0 | 0.0 | 1 | – |
| 56 | SIA "Kurzemes Dziļurbums" | 36 Water collection, treatment and supply | South Kurzeme Municipality | 0.0 | 0.0 | 8 | −19.9% |
| 57 | SIA "AQUABALT" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 2 | −28.2% |
| 58 | SIA "ARTEZIJA" | 36 Water collection, treatment and supply | Jūrmala | 0.0 | 0.0 | 1 | +179.2% |
| 59 | SIA "SILVER VEIN" | 36 Water collection, treatment and supply | Valmiera Municipality | 0.0 | 0.0 | 5 | −49.8% |
| 60 | SIA Artesium Baltic Distribution | 36 Water collection, treatment and supply | Ķekava Municipality | 0.0 | 0.0 | 2 | +289.1% |
| 61 | SIA "Ūdens eksperts" | 36 Water collection, treatment and supply | Limbaži Municipality | 0.0 | 0.0 | 1 | +79.6% |
| 62 | SIA Filtru meistars | 36 Water collection, treatment and supply | Salaspils Municipality | 0.0 | 0.0 | 1 | −1.3% |
| 63 | SIA "FILTREX" | 36 Water collection, treatment and supply | Sigulda Municipality | 0.0 | 0.0 | 3 | +2.0% |
| 64 | SIA "Latvijas Pazemes Ūdeņi" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 1 | −5.4% |
| 65 | SIA "Vidzemes ūdens" | 36 Water collection, treatment and supply | Madona Municipality | 0.0 | 0.0 | 3 | – |
| 66 | SIA "Mītavas dziļurbums" | 36 Water collection, treatment and supply | Jelgava | 0.0 | 0.0 | 1 | +455.3% |
| 67 | SIA "ĢeoArt" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 1 | +779.8% |
| 68 | SIA "ŪDENSMEISTARS" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 2 | −11.3% |
| 69 | SIA "OBIS" | 36 Water collection, treatment and supply | Jelgava Municipality | 0.0 | 0.0 | 3 | +187.1% |
| 70 | SIA "Baltic Aqua" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 1 | +39.9% |
| 71 | SIA Posiitum | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 4 | – |
| 72 | SIA "AKVA CENTRS" | 36 Water collection, treatment and supply | Ropaži Municipality | 0.0 | 0.0 | 2 | −5.7% |
| 73 | SIA "Inkomserviss" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 1 | +49.6% |
| 74 | SIA "FREZI" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 2 | +135.9% |
| 75 | SIA "Ūdensapgāde un ģeoloģija" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 4 | – |
| 76 | SIA "RAINMEN" | 36 Water collection, treatment and supply | Bauska Municipality | 0.0 | 0.0 | 0 | +177.4% |
| 77 | SIA "EUROBALTIC WATER" | 36 Water collection, treatment and supply | Ķekava Municipality | 0.0 | 0.0 | 2 | +4,237.5% |
| 78 | SIA AQUA SISTEMA | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 2 | +19.7% |
| 79 | SIA "Flow Masters" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 1 | −10.2% |
| 80 | SIA "UVEX" | 36 Water collection, treatment and supply | Liepāja | 0.0 | 0.0 | 1 | −9.2% |
| 81 | SIA "Exim solutions" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 1 | +295.1% |
| 82 | SIA "VAVILAT" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 2 | −39.4% |
| 83 | SIA "AKVAFIX" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 1 | – |
| 84 | SIA A200 | 36 Water collection, treatment and supply | Jūrmala | 0.0 | 0.0 | 0 | −65.9% |
| 85 | SIA "INNVARI" | 36 Water collection, treatment and supply | Ventspils | 0.0 | 0.0 | 0 | +35.6% |
| 86 | SIA "RELTO" | 36 Water collection, treatment and supply | Mārupe Municipality | 0.0 | 0.0 | 1 | −15.7% |
| 87 | SIA Starptautiskais ūdens serviss | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 1 | −83.7% |
| 88 | SIA "MiViRa" | 36 Water collection, treatment and supply | Augšdaugava Municipality | 0.0 | 0.0 | 1 | −60.7% |
| 89 | SIA "TEO Motors" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 0 | −65.9% |
| 90 | SIA "KPG" | 36 Water collection, treatment and supply | Ķekava Municipality | 0.0 | 0.0 | 0 | −19.2% |
| 91 | SIA "ŪDENSAPGĀDE UN SERVISS" | 36 Water collection, treatment and supply | Salaspils Municipality | 0.0 | 0.0 | 1 | −66.1% |
| 92 | SIA "EiBerk" | 36 Water collection, treatment and supply | Ropaži Municipality | 0.0 | 0.0 | 1 | −29.4% |
| 93 | SIA "DELFĪNS UN KO" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 0 | −58.3% |
| 94 | SIA "VARIESI" | 36 Water collection, treatment and supply | Aizkraukle Municipality | 0.0 | 0.0 | 0 | 0.0% |
| 95 | SIA "FB Serviss" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 0 | −73.7% |
| 96 | SIA "ISMAR" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 0 | −58.3% |
| 97 | SIA "Cutting Edge Technologies" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 0 | −16.7% |
| 98 | SIA "AKVAMAR" | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 0 | 0.0% |
| 99 | Kanalizācijas centrs SIA | 36 Water collection, treatment and supply | Riga | 0.0 | 0.0 | 0 | – |
| 100 | SIA "AREPS" | 36 Water collection, treatment and supply | Limbaži Municipality | 0.0 | 0.0 | 0 | 0.0% |