Construction companies in Santa Catarina, Brazil

There are 54,771 companies in construction (ISIC F) registered in Santa Catarina, Brazil: 54,771 active and 54,764 in the clean B2B universe. Santa Catarina ranks 4th of 27 states for the section and holds 8.6% of its national total (data as of 2026-10-10). The sector is over-represented here: section F is 7.9% of all records in Santa Catarina against 5.8% nationally, a location quotient of 1.35.

Joinville concentrates 9.8% of the active companies, followed by Florianopolis (4,548) and Blumenau (3,261); the three together hold 24.0%. The median active company is 5.1 years old; 12% were registered in the last year and 33% in the last three. In the 12 months to September 2026, 4,944 new construction businesses were registered in Santa Catarina, -3.6% on the previous 12 months (national section F: +7.4%). By ISIC division, 41 (construction of buildings) is 59.1% of the records and 43 (specialized construction activities) 36.7%. Size is known for 68% of the active companies; 78% of those are micro.

One of the largest sections in every registry and the noisiest: developers register a company per project (SPE/SPV), so division 41 overstates the number of operating builders. Division 43 (specialised trades) is where the actual contractors are. Construction-tech, building-materials distributors, equipment rental and fintech lenders use this section with a size or age filter.