Tonka Bay Equity Partners acquired Aero Systems Engineering, Inc., a world wide leader in wind tunnel and jet engine testing facilities.

Atritech, a developer a medical device to close the left atrial appendage in patients with atrial fibrillation, was sold Boston Scientific.

Automotive Cooling Products Inc., which grew to a seven location distributor of automotive heating and cooling products, was sold to 1-800-Radiator.

The Burchfield Group, a leader in pharmacy benefit consulting, auditing and health plan compliance services, was acquired by Aon, Inc.

Cirus Controls, a provider of controls and systems for the winter road maintenance industry was acquired by Certified Power, Inc.

Endocardial Solutions, a developer of a software mapping system used for the navigation and localization in atrial fibrillation ablation, sold to St. Jude.

Fair Isaac sold its bill review and medical cost containment technology to the workers compensation industry to Mitchell Corporation.

Gentra, a manufacturer of nucleic acid purification reagents and instruments for clinical and clinical research laboratories, was sold to Qiagen.

H2O Innovation acquired Itasca Systems Inc., a provider of specialized industrial process water treating solutions.

Livio, a provider of specialized services making house calls low-income and elderly patients covered by Medicaid and Medicare was acquire by BCBS of Minnesota

Medicode, a provider of claims adjudication software and databases for healthcare providers and insurance companies, was sold to UnitedHealthGroup.

Mednet, an SaaS-based eClinical software technology company, was recapitalized by Arrowroot and Cohesive Capital Partners.

Network Instruments grew to a uniquely effective network solution that integrates customer needs and feedback, while raising the benchmark on quality.

PowerObjects, a professional services firm providing service, support, education and add-ons for Microsoft Dynamics CRM was acquired by HCL Technologies.

Proximagen, a biotechnology company with a pipeline in various stages of development across a number of therapeutic, was acquired by Upshire Smith.

Sanovia Corporation, a provider of automated decision-making technology health plan pharmaceutical administration, was sold to Health Information Design.

St. Anthony Publishing, a provider of health information for the coding, reimbursement, and managed care industries, was acquired by UnitedHealth.

Synovis, a developer of medical devices used primarily in surgical procedures for soft tissue repair, was sold to Baxter International.

Top Tool Company, a manufacturer of complex precision stamped components primarily for medical devices, sold to Cirtec Medical LLC.

Trussbilt LLC, a manufacturer of steel hardware for the corrections market, has been acquired by the New York-based private equity firm, Sentinel Capital Partners.

Worldwide Clinical began as an investigational site before expanding to become a global Contract Research Organization and was sold to UnitedHealth.

Zepol, a provider of US import and export competitive intelligence, market research, lead generation, sourcing, and trade compliance, was sold to Datamyne.

Zyga, a developer and producer of minimally invasive medical devices to treat conditions of the lumbar spine, was sold to RTI Surgical, Inc.