List of companies in region Irkutsk Oblast/
- Irkutsk (5172 companies )
- Bratsk (385 companies )
- Angarsk (436 companies )
- Zima (3 companies )
- Ust'-Ilimsk (22 companies )
- Ust'-Kut (35 companies )
- Tulun (15 companies )
- Baykal'sk (2 companies )
- Bodaybo (29 companies )
- Vikhorevka (2 companies )
- Zheleznogorsk-Ilimskiy (7 companies )
- Zima (2 companies )
- Kirensk (3 companies )
- Nizhneudinsk (6 companies )
- Sayansk (14 companies )
- Svirsk (1 companies )
- Slyudyanka (1 companies )
- Tayshet (6 companies )
- Usol'ye-Sibirskoye (25 companies )
- Cheremkhovo (5 companies )
- Shelekhov (31 companies )
- Alekseyevskaya (0 companies )
- Alzamay (0 companies )
- (0 companies )
- (2 companies )
- Lake Baikal (1 companies )
- Balagansk (0 companies )
- Bayanday (0 companies )
- Biryusinsk (0 companies )
- Bol’shaya Rechka (0 companies )
- Bol’shoy Lug (1 companies )
- Bokhan (0 companies )
- Vidim (1 companies )
- Vitimskiy (0 companies )
- Yelantsy (0 companies )
- Yerbogachen Airport (0 companies )
- Zhigalovo (0 companies )
- Zabituy (0 companies )
- Zalari (1 companies )
- Zvëzdnyy (0 companies )
- (0 companies )
- Kachug (0 companies )
- Kvitok (0 companies )
- Kuytun (0 companies )
- Kultuk (2 companies )
- Kutulik (0 companies )
- Mama (0 companies )
- Osa (1 companies )
- Slyudyanka (0 companies )
- (27 companies )
- Ust'-Ordynskiy (0 companies )
- Ust'-Uda (0 companies )
- Chunskiy (1 companies )