uSamp, an Encino, Calif.-based provider of technology and survey respondents for market research, has raised $15 million in Series D funding from OpenView Venture Partners and DuPont Capital Management. www.usamp.com
HyTrust Inc., a Mountain View, Calif.-based provider of policy management and access control for virtualization and cloud infrastructure, has raised $12.5 million in Series C funding. In-Q-Tel andVMware Inc. were joined by return backers Cisco Systems, Epic Ventures, Granite Ventures and Trident Capital. www.hytrust.com
AirTight Networks Inc., a Mountain View, Calif.-based provider of cloud-managed Wi-Fi solutions, has raised $10 million in Series D funding co-led by return backers CMEA Capital and Trident Capital.www.airtightnetworks.com
TrustRadius, an Austin, Texas-based online platform for user reviews of enterprise software, has raised $5 million in Series A funding from Mayfield Fund. www.trustradius.com
Judo Payments, a London-based provider of mobile payment solutions for UK merchants, has raised $5 million in seed funding from undisclosed investors. www.judopay.com
PathoQuest, a Paris-based molecular diagnostics company for infectious disease, has raised €3.8 million in new VC funding. Idinvest and Aurinvest were joined by return backer Kurma Life Science Partners. www.pathoquest.com
Drip Drop Inc., a San Francisco–based developer of medical-grade oral hydration products, has raised $2.3 million in new VC funding led by Pacific Advantage Capital. www.dripdrop.com
The Royalty Exchange, a Raleigh, N.C.-based online platform for the valuation and sale of music royalties, has raised $2.1 million in Series A funding from Grotech Ventures.www.theroyaltyexchange.com
Taxibeat, a Greek e-hail app maker that has expanded into Latin America, has raised $2 million in new VC funding from undisclosed backers. www.taxibeat.com
Mark43 (f.k.a. Nucleik), a Boston-based provider of law enforcement information management software, has raised $1.95 million in seed funding from Spark Capital, General Catalyst, Lowercase Capital, SV Angel, Launchpad LA, Rough Draft Ventures, and HBS professor Tom Eisenmann www.nucleikapp.com
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