DataSage Inc said Wednesday that it has secured $23.5m in a mezzanine round of funding led by QuestMark Partners. The cash came from private investors, as well as original investors, including OneLiberty Ventures, Sigma Partners, Advanced Technology Ventures and El Dorado Ventures. The Reading, Massachusetts-based provider of internet marketing software said the deal brings the total raised capital of the company to just over $33m.

DataSage’s netCustomer software is billed as a complete package for e-marketers which enables them to track consumer activity, personalize their web sites in real time, and drive targeted email campaigns. The company’s customer list includes Amazon.com, Outpost.com, Tickets.com, Drugstore.com, and over 30 other e-commerce firms.

Meanwhile, e-commerce software house Kinzan.com Inc closed $15.5m in mezzanine funding led by Menlo Ventures. Joining existing investors Pulsar Venture Group and InveStar Capital in the round were newcomers Broadview Capital, Mitsubishi Corp, ARES International, Vital Processing and the founders of AboveNet Inc. Carlsbad, California-based Kinzan makes infrastructure software that enables customers to deploy and manage large networks of web sites.

The latest round brings the company’s total investments this year to over $21m and will be used to fund marketing, sales, product development and other operations requirements. As part of the funding arrangement, DuBose Montgomery of Menlo Ventures and Ken Tai, chairman of InveStar and a co-founder of Acer Inc, will join Kinzan.com’s board of directors.