Municipality in Flemish Brabant
Companies in Leuven
Active companies, associations and other legal entities with their registered office in Leuven (3000, 3001, 3010, 3012, 3018), by activity, the largest according to the annual accounts and the newest.
Activities
By activity companies in Leuven
70Activities of head offices and management consultancy85062Computer programming, consultancy and related activities83447Retail trade68156Food and beverage service activities62486Human health activities58868Real estate activities47469Legal and accounting activities37846Wholesale trade36771Architectural and engineering activities; technical testing and analysis34582Office administrative, office support and other business support activities29385Education23264Financial service activities, except insurance and pension funding22973Activities of advertising, market research and public relations22643Specialised construction activities22593Sports activities and amusement and recreation activities177
All 73 activities
94Activities of membership organisations16190Arts creation and performing arts activities15896Personal service activities14974Other professional, scientific and technical activities12063Computing infrastructure, data processing, hosting and other information service activities10659Motion picture, video and television programme production, sound recording and music publishing activities8488Social work activities without accommodation8341Construction of residential and non-residential buildings8366Activities auxiliary to financial services and insurance activities7972Scientific research and development7178Employment activities6910Manufacture of food products6749Land transport and transport via pipelines6381Services to buildings and landscape activities6058Publishing activities5555Accommodation4484Public administration and defence; compulsory social security4395Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles4277Rental and leasing activities3979Travel agency, tour operator and other reservation service and related activities3626Manufacture of computer, electronic and optical products3432Other manufacturing2987Residential care activities2818Printing and reproduction of recorded media2701Crop and animal production, hunting and related service activities2533Repair, maintenance and installation of machinery and equipment2135Electricity, gas, steam and air conditioning supply1852Warehousing, storage and support activities for transportation1825Manufacture of fabricated metal products, except machinery and equipment1728Manufacture of machinery and equipment n.e.c.1661Telecommunication1675Veterinary activities1560Programming, broadcasting, news agency and other content distribution activities1391Libraries, archives, museums and other cultural activities1220Manufacture of chemicals and chemical products1142Civil engineering1011Manufacture of beverages831Manufacture of furniture853Postal and courier activities821Manufacture of basic pharmaceutical products and pharmaceutical preparations722Manufacture of rubber and plastic products765Insurance, reinsurance and pension funding, except compulsory social security780Investigation and security activities716Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials623Manufacture of other non-metallic mineral products627Manufacture of electrical equipment614Manufacture of wearing apparel513Manufacture of textiles436Water collection, treatment and supply438Waste collection, recovery and disposal activities392Gambling and betting activities302Forestry and logging229Manufacture of motor vehicles, trailers and semi-trailers230Manufacture of other transport equipment237Sewerage251Air transport203Fishing and aquaculture117Manufacture of paper and paper products1
Annual accounts
Largest companies in Leuven
By revenue
- 1Interuniversitair Micro-Electronica CentrumResearch and experimental development on natural sciences and engineering€804.3m2025
- 2Terumo EuropeManufacture of medical and dental instruments and supplies€799.2m2026
- 3AveveWholesale of grain, unmanufactured tobacco, seeds and animal feeds€779.3m2025
- 4KBC AutoleaseFinancial leasing€505.3m2025
- 5Siemens Industry SoftwareEngineering activities and related technical consultancy€353.6m2025
- 6Donaldson EuropeActivities of head offices€320.8m2025
- 7Arvesta Animal NutritionManufacture of prepared feeds for farm animals€250.5m2025
- 8GC EuropeWholesale of pharmaceutical and medical goods€209m2026
- 9MaterialiseManufacture of medical and dental instruments and supplies€181m2025
- 10JSR MicroManufacture of other chemical products n.e.c.€174.6m2026
By staff
- 1Interuniversitair Micro-Electronica CentrumResearch and experimental development on natural sciences and engineering2,904 FTE2025
- 2EntirisOther social work activities without accommodation n.e.c.1,449 FTE2025
- 3Ferm ThuiszorgSocial work activities without accommodation for older persons or persons with disabilities1,359 FTE2025
- 4Ferm KinderopvangChild day-care activities1,189 FTE2025
- 5SUiTemporary employment agency activities and other human resource provisions1,063 FTE2025
- 6Ferm DienstenchequesProvision of domestic personal service activities975 FTE2025
- 7Z.org KU LeuvenHospital activities941 FTE2025
- 8IDEWE - Externe dienst voor Preventie en Bescherming op het werkGeneral medical practice activities807 FTE2025
- 9Terumo EuropeManufacture of medical and dental instruments and supplies721 FTE2026
- 10Ferm HuishoudhulpProvision of domestic personal service activities718 FTE2025
According to the latest filed annual accounts. Revenue only appears in the full format; small companies usually do not report it. Figures only, no judgement.
New businesses
New in Leuven
- 9 Nov 2026SmartSync
- 6 Nov 2026Sur
- 6 Nov 2026Saad W
- 6 Nov 2026Rootpulse Solutions
- 5 Nov 2026PitteStart
- 4 Nov 2026Trapezar
- 4 Nov 2026Ipcm Iii TSM
- 4 Nov 2026Duparo
Municipalities
Nearby
Source: CBE (registered office, establishments and main activity according to NACE-BEL 2025) and the filed annual accounts. Only active legal entities; we do not show sole proprietorships by name. Updated every night.
Other municipalities in Flemish Brabant: Flemish Brabant · All municipalities · All activities