Vancouver-based technology company Spexi has raised $11.5m in a series A funding round led by Blockchange Ventures.The funding will be used to build a scalable global network of drone pilots to deliver ultra-high-resolution imagery for various applications.Spexi's drone-based approach offers 900 times the detail of satellite imagery at a fraction of the cost.The company has already conducted over 50,000 drone missions, imaging 140+ cities and 1.2 million acres across four countries.