ANDOVER, Sept. 5, Sentillion, Inc. announced that it has completed a successful Series C funding round led by Merrill Lynch Ventures, raising $18 million. New investors Dresdner Kleinwort Capital and Universal Health Services, one of the largest hospital management companies in the United States, and all of Sentillion's Series A and Series B investors, including First Consulting Group, Intersouth Partners, Newbury Ventures, Polaris Venture Partners and St. Paul Venture Capital, participated in the round.

ANDOVER, Sept. 5, Tropic Networks Inc., a company developing Optical Packet Networking systems to eliminate the constraints of delivering high bandwidth IP and Ethernet-based services in metropolitan area networks (MANs), announced it has secured $10 million in capital financing. The financing follows Tropic's second venture capital round of $60 million raised earlier this year. Silicon Valley Bank, GATX/MM Venture Finance Partnership and Transamerica Commercial Finance Corporation provided the financing. Based in Ottawa, ON, and Andover, MA, Tropic was formed in May 2000.

BOSTON, Sept. 10, GeoTrust, a developer of products and services for Internet security infrastructure, closed a Series C round of funding totaling $11.1 million. Previous investor St. Paul Venture Capital led the round, which included other former investors Castile Ventures and CB Capital. Founded in 1998, GeoTrust combined business authentication and on-line database technology to create its True Credentials product, an XML-based business identity and information profile.

DEDHAM, Sept. 13, CORTEK, Inc., a developer of spinal implants for the treatment of degenerative disc disease, announced that it has completed a fourth-round of private financing for $10 million. Galen Partners and The Kaufman Group were the largest participants in this round of financing. All major previous investors also supported this round.