WaveDivision Holdings has acquired Spectrum Networks to expand its broadband service offerings.

Seattle-based Spectrum provides commercial Internet services to business. The company’s subsidiary, CondoInternet, provides ethernet connections to condominiums and apartments in Seattle and Bellevue, Wash. Terms of the transaction were not disclosed.

Spectrum and CondoInternet will operate as two separate businesses under WaveDivision.

Kirkland, Wash.-based WaveDivision is a cable and broadband services company that provides cable, high-speed Internet and phone services to customers near Seattle, Portland, San Francisco and Sacramento.

In January, WaveDivision completed a $50 million deal to buy Black Rock Cable, which provides fiber-optic connectivity services in Washington. The company is backed by private equity firm Oak Hill Capital Partners, headquartered in New York. 

Oak Hill has also invested in Align Technology Inc., Security Networks LLC and Vantage Oncology. The firm has compelted more than 70 transactions.