| Husum MillPulp millMetsä Board Oyj | Sweden | Mixed | Operating | 730 000 t/y pulp production |
| Hutter Sägewerk St. Michael im LungauSawmillHutter Sägewerk | Austria | - | Operating | 50 000 m3/y sawn timberestimated from 100 000 m3/y log intake |
| Hvalsø SavværkSawmillHvalsø Savværk A/S | Denmark | Mixed | Operating | No data yet |
| Hylte Paper MillPulp millSweden Timber | Sweden | Softwood | Operating | 245 000 t/y pulp production |
| Hyne Timber Tuan MillSawmillHyne Timber | Australia | - | Operating | No data yet |
| Hyne Timber TumbarumbaSawmillHyne Timber | Australia | - | Operating | 310 000 m3/y sawn timberestimated from 620 000 m3/y log intake |
| I.B.H. Sägewerk HarperscheidSawmillI.B.H. Sägewerk | Germany | Softwood | Operating | 150 000 m3/y sawn timberestimated from 300 000 m3/y log intake |
| IBV & Cie (Vielsalm)SawmillIBV & Cie (Industrie du Bois Vielsalm) | Belgium | - | Operating | 400 000 m3/y sawn timberestimated from 800 000 m3/y log intake |
| Idaho Forest Group ChilcoSawmillIdaho Forest Group | United States | - | Operating | 475 382 m3/y sawn timber |
| Idaho Forest Group GrangevilleSawmillIdaho Forest Group | United States | Softwood | Operating | 424 448 m3/y sawn timber |
| Idaho Forest Group LacledeSawmillIdaho Forest Group | United States | Softwood | Operating | 407 470 m3/y sawn timber |
| Idaho Forest Group LewistonSawmillIdaho Forest Group | United States | Softwood | Operating | No data yet |
| Idaho Forest Group Moyie SpringsSawmillIdaho Forest Group | United States | Softwood | Operating | No data yet |
| Iggesund Paperboard MillPulp millHolmen AB | Sweden | Mixed | Operating | 330 000 t/y pulp production |
| Iggesund sågverkSawmillHolmen Trävaror | Sweden | Softwood | Operating | 450 000 m3/y sawn timber |
| Iisalmen Sahat (IPO Wood)SawmillIisalmen Sahat Oy | Finland | Softwood | Operating | 200 000 m3/y sawn timber |
| IKEA Industry Stalowa WolaSawmillIKEA Industry Poland Sp. z o.o. | Poland | Softwood | Operating | 200 000 m3/y sawn timberestimated from 400 000 m3/y log intake |
| IKEA Industry WielbarkSawmillIKEA Industry Poland Sp. z o.o. | Poland | Softwood | Operating | 125 000 m3/y sawn timberestimated from 250 000 m3/y log intake |
| Ilim Nordic Timber WismarSawmillIlim Nordic Timber GmbH & Co. KG | Germany | - | Operating | 850 000 m3/y sawn timberestimated from 1 700 000 m3/y log intake |
| Ilim Timber Bavaria LandsbergSawmillIlim Timber Bavaria GmbH | Germany | - | Operating | 425 000 m3/y sawn timberestimated from 850 000 m3/y log intake |
| Ilim Timber Bratsk (Bratsk Saw and Wood Processing Mill)SawmillIlim Timber, Bratsk branch | Russia | Softwood | Operating | No data yet |
| Ilim Timber Ust-Ilimsk (Ust-Ilimsk Timber Processing Plant)SawmillIlim Timber, Ust-Ilimsk branch | Russia | - | Operating | 600 000 m3/y sawn timber |
| Imatra MillsPulp millStora Enso | Finland | Mixed | Operating | 1 300 000 t/y pulp production |
| Imperatriz MillPulp millSuzano S.A. | Brazil | Hardwood | Operating | 1 650 000 t/y pulp production |
| InduforestSawmillInduforest S.L. | Spain | - | Operating | No data yet |
| InnTre Kjeldstad (Steinkjer)SawmillInnTre Kjeldstad AS | Norway | - | Operating | 100 000 m3/y |
| InnTre Kjeldstad LevangerSawmillInnTre Kjeldstad AS | Norway | Softwood | Operating | No data yet |
| InnTre Kjeldstad SelbuSawmillInnTre Kjeldstad AS | Norway | - | Operating | No data yet |
| InnTre Kjeldstad StørenSawmillInnTre Kjeldstad AS | Norway | - | Operating | No data yet |
| InnTre Kjeldstad VerdalSawmillInnTre Kjeldstad AS | Norway | - | Operating | No data yet |
| Intercontinental Pulp MillPulp millCanfor Pulp | Canada | Softwood | Operating | 320 000 t/y pulp production |
| Interfor Adams LakeSawmillInterfor Corporation | Canada | - | Operating | 592 530 m3/y sawn timber |
| Interfor BaxleySawmillInterfor U.S. | United States | Softwood | Operating | No data yet |
| Interfor Bay SpringsSawmillInterfor U.S. | United States | - | Operating | No data yet |
| Interfor CastlegarSawmillInterfor Corporation | Canada | - | Operating | 390 492 m3/y sawn timber |
| Interfor DeQuincySawmillInterfor U.S. | United States | - | Operating | 339 559 m3/y sawn timber |
| Interfor Ear Falls (ex-EACOM)SawmillInterfor Corporation | Canada | Softwood | Operating | No data yet |
| Interfor EatontonSawmillInterfor U.S. | United States | - | Operating | No data yet |
| Interfor Elk Lake (ex-EACOM)SawmillInterfor Corporation | Canada | Softwood | Operating | No data yet |
| Interfor FayetteSawmillInterfor U.S. | United States | - | Operating | No data yet |
| Interfor GeorgetownSawmillInterfor U.S. | United States | - | Operating | No data yet |
| Interfor GogamaSawmillInterfor Corporation | Canada | - | Idled | No data yet |
| Interfor Grand ForksSawmillInterfor Corporation | Canada | - | Operating | 285 229 m3/y sawn timber |
| Interfor LongviewSawmillInterfor US | United States | Softwood | Operating | No data yet |
| Interfor Matagami (ex-EACOM)SawmillChantiers Chibougamau (f.d. Interfor) | Canada | - | Operating | No data yet |
| Interfor MolallaSawmillInterfor US | United States | - | Operating | No data yet |
| Interfor MonticelloSawmillInterfor U.S. | United States | Softwood | Operating | No data yet |
| Interfor Nairn Centre (ex-EACOM)SawmillInterfor Corporation | Canada | - | Closed | No data yet |
| Interfor PerrySawmillInterfor U.S. | United States | - | Operating | No data yet |
| Interfor PhilomathSawmillInterfor US | United States | - | Operating | 373 514 m3/y sawn timber |