| | Model No | Qty | Flow m³/hr | Carbon Kg/unit | Project name/Location | Contractor | Year |
| 01 | CVA-1000 | 2 | 1700 | 700 | Cultural Village | Metito Overseas | 2005 |
| 02 | OCU1800S | 4 | 5000 | 1500 | Civil Project 208/4 | Danway | 2005 |
| 03 | CVA-1000 | 1 | 1300 | 325 | Civil Project 208/4 | Danway | 2005 |
| 04 | OCU2600D | 2 | 35000 | 12000 | Civil Project 208/4 | Danway | 2005 |
| 05 | CVA-1500 | 1 | 600 | 500 | Qatar Gas | Metito Overseas | 2005 |
| 06 | OCU1800S | 1 | 3600 | 1600 | CP695-PS15 | AA Engineering | 2005 |
| 07 | CVA1000 | 1 | 600 | 450 | Qatargas 3&4 Onshore | Metito Overseas | 2006 |
| 08 | OCU1800S | 2 | 3500 | 1750 | W411 PS | Danway | 2006 |
| 09 | OCU2400S | 2 | 5720 | 2800 | CP505 Ind. Area Sewerage | AA Engineering | 2006 |
| 10 | CVA2000 | 1 | 1890 | 800 | Ras Gas RL3 | Metito Overseas | 2006 |
| 11 | Different | 8 | Different | 5200 | The Pearl | Metito Overseas | 2007 |
| 12 | Different | 6 | Different | 4000 | Al Khor | Metito Overseas | 2007 |
| 13 | OCU1800S | 1 | 2628 | 1200 | Shell GTL | Metito Overseas | 2007 |
| 14 | CVA2000S | 1 | 1909 | 850 | ERC small D3/C5 | AA Engineering | 2007 |
| 15 | 2x CVA-3000 | 2 | 2500 | 1100 | Doha Floculation table | Metito Overseas | 2007 |
| 16 | OCU3500S | 1 | 13546 | 6000 | ERC Big D3/C4 | AA Engineering | 2007 |
| 17 | 2x CVA500 | 1 | 500 | 225 | CP698 Ind. Area | Metito Overseas | 2007 |
| 18 | CVB81-500 | 1 | 501 | 225 | CP698 Ind. Area | AAEngineering | 2007 |
| 19 | CVA2000 | 1 | 1046 | 500 | PS34A | AAEngineering | 2008 |
| 20 | OCU3750D | 3 | 33.708 | 15.500 | Doha & Rayyan Sewage PS25 | AAEngineering | 2008 |
| 21 | Different | 10 | Different | 56.400 | Doha & Rayyan Sewage PS32 | Nasstech | 2008 |
| 22 | OCU800S | 1 | 622 | 275 | GPS | AAEngineering | 2009 |
| 23 | OCU1400S | 1 | 2000 | 1000 | 518009 | Metito Overseas | 2009 |
| 24 | OCU2400S | 1 | 6000 | 3600 | Seqayah | District Cool Serv. | 2010 |
| 25 | OCU1500S | 2 | 2000 | 9000 | Qatar University | GBEMC | 2010 |
| 26 | OCU800S | 2 | 490 | 250 | Katara | Metito Overseas | 2012 |
| 27 | OCU3000S | 2 | 8800 | 4600 | Lusail | Metito Overseas | 2011 |
| 28 | OCU2200D +scrubber | 2 | 8630 | 4700 | Ain Khalid PH2 | Metito Overseas | 2012 |
| 29 | OCU800S | 1 | 500 | 225 | Barwa 510029 | Metito Overseas | 2011 |
| 30 | OCU3200S | 2 | 12 700 | 5 600 | CP 725 Phase 7 – PS13 | Nass Group | 2012 |
| 31 | OUC3750D | 2 | 32 500 | 15 000 | CP 725 Phase 7 – PS34 | Nass Group | 2012 |
| 32 | OCU3750S | 2 | 14 600 | 6400 | CP 725 Phase 7 – PS50 | Nass Group | 2012 |
| 33 | OCU4000D | 2 | 33658 | 32400 | Doha West/Tanker Facility | Metito Overseas | 2013 |
| 34 | OCU1200S | 1 | 1406 | 720 | New Doha Int’l Airport | Metito Overseas | 2013 |
| 35 | OCU600S | 1 | 200 | 175 | Barwa/Al Khor | Metito Overseas | 2013 |
| 36 | OCU1000S | 2 | 640/1320 | 500 | CP725 / PS2 | Nass group | 2014 |
| 37 | OCU1500S | 2 | 1568/2352 | 1200 | CP725 / PS7 | Nass group | 2014 |
| 38 | OCU2400S | 2 | 3712/5568 | 1700 | CP725 / PS9 | Nass group | 2015 |
| 39 | OCU2400S | 2 | 3556/7333 | 3000 | CP725 / Labour city | Nass group | 2015 |
| 40 | OCU1800D | 1 | 36 475 | 13 000 | PS40 refurbisch | Petroserv | 2015 |
| 41 | OCU1000S | 2 | 414 | 600 | CP774 – Al Shamal | Metito | 2014 |
| 42 | OCU1500S | 2 | 1500 | 1800 | CP774 – Al Dhakira | Metito | 2014 |
| 43 | OCU1000S | 1 | 1200 | 600 | PWA/STC/007/2014-2015 | Metito | 2015 |
| 44 | OCU1000S | 2 | 750 | 450 | New Doha Port STP 1 | ACWA | 2015 |
| 45 | OCU1500S | 2 | 2000 | 1200 | New Doha Port STP 2 | ACWA | 2015 |
| 46 | OCU800S | 1 | 350 | 225 | CP755-Al Shamal STP | Waterleau | 2016 |
| 47 | OCU800S | 1 | 500 | 250 | CP755-Al Shamal STP | Waterleau | 2016 |
| 48 | SCR1100 | 1 | 3570 | – | CP755-Al Shamal STP | Waterleau | 2016 |
| 49 | OCU1200 S | 1 | 1098 | 750 | North of Al Wukair | AA Engineering | 2016 |
| 50 | OCU1500 S | 2 | 2088 | 2 x 1000 | Fish Market-UV | Metito | 2016 |
| 51 | OCU600S | 2 | 276 | 2 x 175 | Fish Market | Metito | 2016 |
| 52 | Passive units | 4 | various | 2300 | PS16N passive units | GEC-Nass | 2017 |
| 53 | Odour modelling study | – | – | – | Al Dhakira | GEC-Nass | 2017 |
| 54 | OCU2400D | 1 | 11030 | 4500 | Mawater | Metito | 2018 |
| 55 | OCU800S | 1 | 470 | 200 | Mawater | Metito | 2018 |
| 56 | OCU3000D | 2 | 18322 | 7500 | Jery Al Samur | Petroserv | 2018 |
| 57 | OCU2400D | 2 | 3600 | 5500 | PSW07 West of Al Meshaf | AA Engineering | 2018 |
| 58 | OCU1000S | 1 | 782 | 400 | CP770-PS15 | Petroserv | 2018 |
| 59 | OCU800S | 1 | 372 | 200 | CP770-PS20 | Petroserv | 2018 |
| 60 | OCU1200S | 1 | 1178 | 600 | CP770-PS21 | Petroserv | 2018 |
| 61 | OCU1500S | 1 | 1502 | 750 | CP770-PS32 | Petroserv | 2018 |
| 62 | OCU1200S | 1 | 972 | 500 | CP770-PS32GC | Petroserv | 2018 |
| 63 | OCU2200D | 1 | 9018 | 4475 | CP770-PS37 Wet Well | Petroserv | 2018 |
| 64 | OCU1500S | 1 | 1800 | 900 | CP770-PS40 | Petroserv | 2018 |
| 65 | OCU1200S | 1 | 1134 | 575 | CP770-PS40 GC | Petroserv | 2018 |
| 66 | OCU2000D | 2 | 6352 | 3100 | CP770-PS37ex | Petroserv | 2018 |
| 67 | OCU2800D | 1 | 11751 | 5800 | CP770-PS37 new screen | Petroserv | 2018 |
| 68 | OCU 800 S | 3 | 513 | 275 | Al Rayan Stadium | Metito | 2019 |
| 69 | OCU 1000 S | 1 | 900 | 400 | Al Haraj Souq | TRAGS | 2019 |
| 70 | OCU 2500 S | 1 | 4500 | 3250 | Um Al Houl QEZ3 (LS) | Metito | 2021 |
| 71 | OCU 1200 S | 1 | 1000 | 425 | Um Al Houl QEZ3 (STP) | Metito | 2021 |
| 72 | OCU 3200 D | 1 | 15700 | 7200 | C835 / Temporary Station | AA Engineering | 2021 |
| 73 | OCU 800 S | 3 | 492 | 200 | Entertainment City | Lead Cooling Contracting & Trading | 2021 |
| 74 | Dual stage scrubber + activated carbon | 2 | 28 150 | 2 x 6900 | Al Dhakira TPS | GEC | 2019 |
| 75 | Dual stage scrubber + activated carbon | 2 | 80 000 | 2 x 9750 | Al Dhakira STP-inlet | HRC | 2019 |
| 76 | Dual stage scrubber + activated carbon | 2 | 24 000 | 2 x 5800 | Al Dhakira STP-inlet | HRC | 2019 |
| 77 | Dual stage scrubber | 1 | 51 000 | – | IASTW | L&T | 2021 |
| 78 | OCU 800 S | 1 | 600 | 2x 205 | IASTW | L&T | 2021 |
| 79 | Passive Unit | 1 | Different | 50 | IASTW | L&T | 2021 |
| 80 | OCU 2500 S | 1 | 3000 | 2000 | Floresta Garden @ Pearl Qatar | Metito Qatar | 2021 |
| 81 | OCU 1800 S | 1 | 1140/1900 | 2100 | Lusail Palace PS1 | Trags | 2021 |
| 82 | OCU 1800 S | 1 | 960/1600 | 2100 | Lusail Palace PS2 | Trags | 2021 |
| 83 | OCU 1800 S | 1 | 1080/1800 | 2100 | Lusail Palace PS3 | Trags | 2021 |
| 84 | OCU 800 S | 1 | 380 | 150 | Falcon 3 Project | Petrocon ECC | 2021 |
| 85 | OCU 2500 S | 1 | 3313/5522 | 1800 | Qetaifan | TRAGS | 2021 |
| 86 | OCU 3200 D | 1 | 10 800/ 18 000 | 6000 | Qetaifan | TRAGS | 2021 |
| 87 | OCU 1500 P | 1 | Different | 1200 | Panda Enclosure | Petrocon ECC | 2022 |
| 88 | OCU 1000 S | 1 | 900 | 375 | Ras Abrouk Desert Retreat | Metito Qatar | 2022 |
| 89 | OCU 1000 S | 1 | 960 | 400 | Tenbek Hospital | Metito Qatar | 2022 |
| 90 | OCU 700 S | 2 | 335/202 | 150 | Doha Port Redevelopment | Metito Qatar | 2022 |