Taris Biomedical, a specialty pharmaceutical company developing therapies to treat bladder diseases, has raised a fresh $12.5 million in funding from its existing investors, Flagship Ventures, Flybridge Capital Partners, Polaris Partners, and Third Rock Ventures. With the new funding, Taris, based in Lexington, Mass., has raised $49.8 million altogether.

Sample6 Technologies, a Boston-based developer of a so-called bacterial monitoring platform, has appointed Tim Curran as CEO. Curran was previously CEO of Vela Systems, which sold to Autodesk last year; he was also CEO of Eleven Technologies, acquired by Trimble Navigation in 2006. Sample6 is backed by Flybridge Capital Partners, Chevron Tech Ventures, The Kraft Group, Founder Collective and Boston University, among others.

Plastiq, a Boston-based online payments company, has raised $6 million in financing. The round was led by Atlas Venture and Flybridge Capital Partners and also included investors in an earlier, $2.3 million financing sewn up last spring. Those other investors include NextView Ventures, Greenoaks Capital Management and individual investors such as Harvey Golub, the former chairman and CEO of American Express.

DataXu said it raised $27 million in a round of financing led by Thomvest Ventures and joined by existing investors Atlas Venture, Flybridge Capital Partners and Menlo Ventures. Thomvest Managing Director Stefan Clulow joins DataXu’s board.

Big data solution provider Crashlytics is merging with Twitter. The company is backed by Flybridge Capital Partners and Baseline Ventures and closed its most recent funding round in April.

peHUB guest contributor looks at this year’s fundraising numbers and wonders, ‘Has the fat lady sung already?’

Digital Lumens has closed a $10 million round of funding from existing investors including Black Coral Capital, Flybridge Capital Partners, and Stata Venture Partners. Digital Lumens is an LED lighting systems and service provider.

For years, David Aronoff has been trying to move from Boston back to his native New York. Three months ago, the venture capitalist, who has long focused on enterprise and infrastructure companies – first for Greylock Partners and, since 2005, for Flybridge Capital Partners – managed to do just that. He insists that it couldn’t be a better time to make the leap, too.

SimpleTuition, a provider of interactive tools that help students save on college-related expenses, has acquired ValoreBooks, an online textbook marketplace which offers discounts on new and used textbooks as well as rentals. SimpleTuition is headquartered in Boston, Mass, and is funded by Atlas Venture, Flybridge Capital Partners, and North Hill Ventures. PRESS RELEASE SimpleTuition, Inc., [...]

Flybridge Capital Partners has expanded its New York City offices with several new apointments. Matt Witheiler, a principal with the firm previously based in Boston, has moved to New York joining general partner David Aronoff who established the firm’s New York City office earlier this year. in additions, Caitlin Strandberg, who previously worked in business [...]