4/8 Trustwave Holdings of Chicago has acquired Secureconnect, of Eden Prairie, a provider of telephone voice and data communications services.

4/9 Corwil Technology, a provider of contract integrated circuit assembly services, was acquired by Tonka Bay Equity Partners, along with Corwil’s management group and a private investor.

4/11 Redshift Systems, an infrared tunable filter technology provider, of Burlington, Mass. has received $3 million in venture capital funding from investors led by Bloomington-based Technology Venture Partners.

4/11 Polaris Industries has acquired Aix Les Bains, a French manufacturer of enclosed on-road quadricycles and light-duty commercial vehicles in Europe.