| SIA "Ludzas medicīnas centrs" | 40003258973 | Human health activities |
| SIA "LNS pakalpojumi" | 42403015020 | Water collection, treatment and supply |
| SIA "ARIOLS" | 40002013387 | Manufacture of food products |
| SIA "LUDZAS MAIZNĪCA" | 46803000065 | Retail trade |
| SIA "Salenieku dolomīts" | 40003794625 | Other mining and quarrying |
| SIA "CPA" | 52403024951 | Retail trade |
| SIA "Lūsēni" | 56801005341 | Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials |
| SIA "RAISO" | 42403046069 | Land transport and transport via pipelines |
| SIA "NATAN" | 42103110769 | Retail trade |
| SIA "MAURIŅI 57" | 42403034835 | Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials |
| SIA "Ambro" | 40003835919 | Wholesale trade |
| SIA "Peat Export LLC" | 40003365143 | Wholesale trade |
| SIA "Kārsavas slimnīca" | 40003257732 | Residential care activities |
| SIA "POVI" | 40203294483 | Food and beverage service activities |
| SIA "RT Būve" | 40103363098 | Other mining and quarrying |
| SIA "BF GROUP" | 40003779842 | Other professional, scientific and technical activities |
| SIA Limbaži wood | 40203045128 | Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials |
| SIA "RĒZEKNES MEŽS" | 42403037719 | Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials |
| SIA "RASA L" | 42402006321 | Retail trade |
| SIA "ANDI 3" | 40203282963 | Forestry and logging |
| SIA "CERTRĀRIJA" | 46802001006 | Retail trade |
| SIA "Zilupes sociālās aprūpes centrs" | 40003257677 | Residential care activities |
| SIA komercfirma "GAIŠEZERS" | 46802001896 | Retail trade |
| SIA "Baltic Pallet Manufacture" | 42403034036 | Land transport and transport via pipelines |
| SIA "VK Logistika" | 42403037827 | Warehousing, storage and support activities for transportation |
| SIA "DS4V" | 51503083331 | Specialised construction activities |
| SIA "EAST TERMINAL GROUPS" | 52403040301 | Warehousing, storage and support activities for transportation |
| SIA "ACUK" | 42403024216 | Construction of residential and non-residential buildings |
| SIA "Smart Trans" | 42403026700 | Land transport and transport via pipelines |
| SIA "Latgales dārzeņu loģistika" | 52403021211 | Crop and animal production, hunting and related service activities |
| SIA "Čīkuri A" | 42403044481 | Forestry and logging |
| LAT COSMETICS SIA | 52403020771 | Retail trade |
| SIA "TRANZIT SERVISS" | 42403042141 | Warehousing, storage and support activities for transportation |
| SIA "JE ENERĢIJA" | 40003872949 | Architectural and engineering activities; technical testing and analysis |
| SIA "VESTA S" | 46803000493 | Retail trade |
| SIA "LUDZAS AUTOOSTA" | 42403024343 | Warehousing, storage and support activities for transportation |
| SIA "JAVISI" | 42403032410 | Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials |
| DC Electronics SIA | 50203229771 | Telecommunication |
| SIA "LUDZAS TIRDZNIECĪBAS CENTRS" | 42403018084 | Real estate activities |
| SIA "VELS" | 42403004101 | Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles |
| SIA "AL & LO" | 42401015384 | Retail trade |
| SIA "LAPEGLES 2" | 46801000785 | Forestry and logging |
| SIA "AUSEKLIS" | 46803000169 | Retail trade |
| SIA "Austrumu mērnieks" | 42403037206 | Architectural and engineering activities; technical testing and analysis |
| SIA "Run-tec.lv" | 40203113814 | Specialised construction activities |
| SIA "TEHSERV" | 42403039071 | Repair, maintenance and installation of machinery and equipment |
| SIA "LUCIA" | 42403030585 | Accommodation |
| SIA "Transports JZ" | 42403045025 | Land transport and transport via pipelines |
| SIA "APAVI-L.V." | 46802001311 | Retail trade |
| SIA "SoLo & Partneri" | 42403024752 | Retail trade |
| SIA "SAULE 5" | 42403007220 | Accommodation |
| SIA "Ludzas AGRO" | 40103407212 | Crop and animal production, hunting and related service activities |
| SIA "SINTIJA G" | 42403015904 | Retail trade |
| SIA "PASSIM" | 46803002333 | Retail trade |
| SIA "RIK & KO" | 46803003362 | Food and beverage service activities |
| SIA "Velasco" | 40203232892 | Civil engineering |
| SIA "LIOveta" | 42403016045 | Veterinary activities |
| SIA "Auto SL" | 42403011546 | Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles |
| SIA "8R" | 42403040009 | Food and beverage service activities |
| SIA Auto TSR 2 | 42403044852 | Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles |
| SIA "DRMED" | 40203448683 | Human health activities |
| SIA "GKIF1" | 42403047952 | Activities of head offices and management consultancy |
| SIA "JOHANSONE UN PARTNERI" | 40003473014 | Legal and accounting activities |
| SIA "ALISA" | 46803001925 | Retail trade |
| SIA "INTOLIA" | 42403038358 | Retail trade |
| SIA "GeoProf" | 40103358542 | Architectural and engineering activities; technical testing and analysis |
| SIA JANAFOREST | 42403045716 | Forestry and logging |
| IK "AAA" | 46802001947 | Education |
| SIA "LEAN" | 42403014913 | Food and beverage service activities |
| SIA "LUDZAS ZEME" | 46803003451 | Publishing activities |
| SIA "Gramex" | 40103279581 | Legal and accounting activities |
| SIA "ELFERI" | 52401020141 | Crop and animal production, hunting and related service activities |
| SIA "EPI-Customs service" | 40203367486 | Computing infrastructure, data processing, hosting and other information service activities |
| SIA "Anel Plus" | 42403045839 | Retail trade |
| SIA ARSIV | 40203444802 | Forestry and logging |
| SIA "Kingfisher plus" | 42403022874 | Other mining and quarrying |
| SIA "FOVEOL" | 42403024127 | Retail trade |
| SIA "SĀKUMS A" | 42403009749 | Retail trade |
| SIA "Octo B" | 40103204765 | Real estate activities |
| SIA "MK GRANDE" | 42403038201 | Manufacture of fabricated metal products, except machinery and equipment |
| SIA "DAMOUR A" | 40103374053 | Land transport and transport via pipelines |
| SIA "INSAITS A" | 42403012255 | Human health activities |
| Nik Navarskij Media SIA | 40203270803 | Motion picture, video and television programme production, sound recording and music publishing activities |
| SIA "3MD" | 42403031881 | Architectural and engineering activities; technical testing and analysis |
| SIA RN Transporto | 40203315412 | Land transport and transport via pipelines |
| SIA "MERKŪRIJS LA" | 46801005513 | Accommodation |
| SIA "ErAus" | 42403037761 | Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials |
| SIA "SKN Šuškova" | 40203339603 | Forestry and logging |
| SIA "AGROĶĪMIJA" | 56803002301 | Retail trade |
| SIA "BL Invest" | 40003846753 | Forestry and logging |
| SIA "MZ SKATS" | 42403041752 | Architectural and engineering activities; technical testing and analysis |
| SIA "Rēzeknes auto" | 40203404000 | Retail trade |
| SIA "GREEN DAY" | 42403036484 | Wholesale trade |
| SIA "Nerzas pienotava" | 42403041254 | Retail trade |
| SIA LABOR LD | 40203476244 | Construction of residential and non-residential buildings |
| IK "PUĶU PARADĪZE" | 42402017503 | Retail trade |
| SIA "Latgalessmakovka.lv" | 42403030602 | Manufacture of beverages |
| SIA "SAMS & KO" | 46803001234 | Forestry and logging |
| SIA "Venta G" | 52403034841 | Land transport and transport via pipelines |
| SIA "AGROĶĪMIJA PLUS" | 52403047511 | Real estate activities |