Portfolio Companies

System & Components

		Aperto Networks, Inc. - Milpitas, California. Aperto Networks is a leading provider of new generation scalable broadband wireless access systems. Aperto's PacketWave® system provides a family of base stations, subscriber units, and associated radios and antennas in 2.5, 3.5 and 5.8 GHz frequency bands for global point-to-multipoint and point-to-point deployments.
Acquired by Nokia Siemens		Atrica, Inc. - Santa Clara, California. Atrica develops equipment that allows telecom- munications companies to provide Gigabit Ethernet service to their customers. Gigabit Ethernet is quickly becoming a significant growth product for telecommunications companies and Atrica's equipment is a carrier class solution. Atrica employs about 160 people, has a presence in three countries, and has products being beta tested by many of the major tele- communications companies. Atrica was acquired by Nokia Siemens Networks in January 2008.
Acquired by Nortel		CoreTek, Inc. - Burlington, Massachusetts. CoreTek designs, manufactures and markets a tunable laser used in DWDM (dense wavelength division multiplexing) networks. CoreTek's lasers are tunable over various frequency ranges, unlike more conventional lasers which are fixed over one frequency range. This development is key for advanced optical communications as well as for a wide variety of optical transmission and management functions. CoreTek was acquired by Nortel.
Acquired by Carrier Access Corporation		Paragon Networks International Inc. - Southbury, Connecticut. Paragon Networks International designs, manufactures and markets cost-effective network access multiplexer products for the wireless industry that enable carriers and corporate users to efficiently manage fractional and whole T1/E1 utilization. Acquired by Carrier Access Corporation in December 2003.
		Polatis, Inc. - Billerica, Massachusetts and Cambridge, United Kingdom.  Continuum Photonics, Inc. and Polatis, Ltd., makers of optical switch subsystems and module products, merged operations in September 2005. The companies will combine their technology, product lines and personnel to create a single business, dedicated to providing customers with a full range of optical switch component and system products for the telecommunications, data networking and defense industries.
		SiCortex, Inc. - Maynard, Massachusetts. SiCortex will develop and market Linux cluster systems tuned to the demanding needs of technical computing for users for solving large, complex industrial, commercial and scientific problems.
		TenXc, Inc. - Ottawa, Canada TenXc provides high performance antenna technology designed to help wireless network operators enhance their coverage and increase their capacity using existing cell sites.
Acquired by American Tower		UNIsite Inc. - Tampa, Florida. UNIsite is a leader in the emerging field of wireless communica- tions site sharing. The company was founded by former FCC Chairman, Mark Fowler. UNIsite was acquired by American Tower Corporation.