Medical device supplier Cook has put the finishing touches on a multimillion-dollar expansion of its Bloomington, Ind., headquarters complex, which now has one million square feet of space for scientists, executives, office workers and factory workers.

In Spencer, Ind., Cook has also built a $70 million plant to grow cell cultures for small biotech companies, which the company is preparing to enlarge and technologically upgrade.

Also, Cook is preparing to double the size of a manufacturing plant in Spencer, Ind., which the supplier said will increase in size by about 50,000 square feet to meet demands for its urology and women's health products.