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21Ventures invests in clean technologies and entrepreneurs focused on solving the challenges of the 21st Century. Global Warming, urbanization, growing populations, and dwindling natural resources, all demand a significant transformation of current industries and practices. 21Ventures provides seed to early-stage capital to companies developing disruptive technology across several sectors, including solar, wind, water, energy storage, efficiency and agriculture.

Since 2004, 21Ventures has provided over 40 clean tech ventures with seed, bridge, and growth equity capital. With such strong depth across a wide range of sectors, 21Ventures has created an exceptional brain trust of technologists and leaders in the clean technology space, which provides tremendous leverage and synergy to its portfolio of companies. 21Ventures takes an active and collaborative approach to its investments, offering deep investment and operational expertise.

21Ventures. 21st Century Science, 21st Century Entrepreneurs
Industry First - GreenRay, Inc. AC Module Awarded Certification Backed by a 20 Year Warranty  >> More

ThermoEnergy Announces the Completion of a $5.0 Million Private Placement of Series B Convertible Preferred Stock   >> More

Relief at Hand for Troubled Jamaica Bay  >> More

Water, Water Everywhere; Wastewater Management For PV Cell Manufacturers  >> More

The Promise of Reliable Inverters for PV Systems: The Microinverter Solution  >> More

The New American Farmer: Who will feed the world in the future? Urbanites, according to AeroFarms’ Ed Hardwood  >> More

GreenRay Solar Appoints Mark Goodreau as VP of Sales & Business Development  >> More

Former professor creates new plant production technology  >> More

The GoingGreen East 50   >> More

Green Technology -Winds of Change Blow through Executive Leadership at Entech  >> More

3GSolar claims photovoltaic breakthrough  >> More

The Transition from Standard PV to AC Modules   >> More

Twitter, Shmitter: Cleantech PR Is Where It's at in 2010  >> More

Costello Tagliapietra: Fall 2010  >> More

Costello Tagliapietra Fall 2010 - Runway Review  >> More

Solar EnerTech Announces Fiscal Year 2010 First Quarter Financial Results  >> More

David Gelbaum, Clean Energy Investor, Remains Bullish Despite the Downturn  >> More

Solar pioneer Miles Russell – CEO GreenRay Solar  >> More

AeroFarms Raises $500,000 from Quercus, 21Ventures  >> More

Solar EnerTech Modules Get UL Certification  >> More

With CEO Role At Entech, Gelbaum Persists With Renewable Focus  >> More

A spark for clean-energy companies  >> More

10 Questions for Greentech Investor David Gelbaum  >> More

Q&A With David Gelbaum of Quercus: He Likes Solar  >> More

David Gelbaum Takes a Job—As CEO of Entech  >> More

Quiet Quercus Trust Chief Gelbaum Signs On as Solar CEO  >> More

Entech Solar Announces Change in Executive Leadership  >> More

Modular SunSine solar panels from GreenRay will generate AC power  >> More

20 Battery Startups Hitting the Road With Lithium-ion  >> More

Taking Stock of Stock House Plans  >> More

Agent Vi Reports 38% Revenue Growth in 2009, Expands to Retail Markets  >> More

USA Today: Debate begins about fuel ratings on electric cars  >> More

Filtration+Separation: Bioremediation, Wastewater treatment in small-scale installations  >> More

Agent Vi Expands Globally – Appoints Anixter as Worldwide Distributor  >> More

pipeline™ exclusive - DIY solar technology developer to raise Series B round for full commercialization  >> More

Salient Systems Partners With Agent Vi  >> More

Agent Vi Wins Major Contract to Provide Over 1,000 Video Analytics Channels to Key Asian Subway System  >> More

pipeline™ exclusive - Wind power voltage regulation solutions developer raises Series B  >> More

Bill Gates Wants a Green Agriculture Revolution: Here’s Tech That Can Drive It  >> More

Cleantech-Israel: BioPetroClean partners with Dow to market wastewater treatement technology  >> More

Agent Vi Announces the Launch of Vi-SearchTM - Cutting-Edge Video Search & Analysis Software  >> More

The Economist: Solar energy in Israel - Two novel approaches to making electricity from sunlight  >> More

Micrologic Demos in SpringSoft’s DAC Custom IC Design Automation Showcase  >> More

Entech Solar Unveils Next-Generation Products  >> More

Dow Launching BioPetroClean Water Treatment for Oil and Gas Industry  >> More

Israel21c: Harnessing the urban wind  >> More

Micrologic to Present at Cadence CDNLive! Israel 2009 Event  >> More

HBR: On the Horizon: Six Sources of Limitless Energy?  >> More

Entech Solar Announces Appointment of David A. Field to Board of Directors  >> More

VB Research - 'Pipeline' BioPetroClean Profile  >> More

Cognisafe Adds Chip Dumping Detection To Its Pitboss-AC Online Cheating Solution  >> More

Reuters: 3GSolars's coloured dyes offer cheap solar power  >> More

The National Green Energy Council (NGEC) Awards the "Ultimate in Environmental Wear" Endorsement to A Lot To Say Apparel Brand  >> More

Micrologic To Participate In DAC San Francisco 2009  >> More

New York Times on Colorep: Cutting Water Use in the Textile Industry  >> More

A New Approach to Energy and Resource Monitoring and Conservation  >> More

VoIP Logic Hits Financial and Corporate Milestones  >> More

Bionanomatrix Named 2009 Top Emerging Technology by MIT Technology Review  >> More

CogniSafe Announces Availability of Pitboss Online Cheating Solution  >> More

BioPetroClean finalist in the 2009 Dun & Bradstreet Israel and Luzzatto & Luzzatto Technology Innovation Award  >> More

Applied Solar Launches Solar Communities™ Program in San Diego County   >> More

Graphene Energy Covered in Chemical & Engineering News  >> More

Agent Video Intelligence and Vivotek Announce Integration of Video Analytics and IP Edge Devices  >> More

Sony Professional, Milestone and Agent Vi announced a complete solution for intelligent video analysis  >> More

ETV Motors, an Electric Vehicle Propulsion Start-Up, Announces $12M Series A Round  >> More

ETV Motors is chosen to showcase its technology to CICC Mission to Israel  >> More

Wireless Device Tracks Solar Energy Generated, Power Consumed  >> More

Open Energy Releases 48 W Version Of SolarSave Tile  >> More

Agent Vi boosts it analytics capabilities using the Mango IVS  >> More

Vesta announces a letter of intent with 3GSolar, Ltd.  >> More

Colorep Inc. Appoints David Anthony to Board of Directors  >> More

21Ventures announces investment in CogniSafe Ltd. - Anti-cheat software provider for online-games  >> More

JuiceCaster Announces 'Flutter' Picture Messaging Application Available on Apple App Store  >> More

Flutter, JuiceCaster help with iPhone 3G photos  >> More



21Ventures Newsletter Q2 2010  >> More

ThermoEnergy Corporation Signs Contract with City of New York to Help Improve Overall Ecology of Jamaica Bay  >> More

The Essential Re-Education of the Smartest People on Earth  >> More

Contrarian investors embrace early-stage technology risk  >> More

CASTion Selected by The Artemis Project™ as a Top 50 Water Company  >> More

An Open Letter to the President, Encourage Green Innovation Don’t Destroy It  >> More

NY Times: You’d Never Know He’s a Sun King  >> More

Biopetroclean's Solution for the Oil Spill in the Gulf of Mexico  >> More

21Ventures Newsletter Q1 2010  >> More

Tuning the energy innovation engine at MIT  >> More

5 Tips for Cleantech Companies to use PR to Gain Credibility in the Marketplace  >> More

Where Will Solar Power Plants Be Built—Deserts or Rooftops?  >> More

Venture Capital: Funding Business Ideas  >> More

21Ventures Newsletter Q4 2009  >> More

From Idea to IPO - Starts January 12 at The New York Academy of Science - Last Chance to Sign Up  >> More

Thinking of going solar? The sweet spot is now  >> More

10 Things to Be Thankful For in Greentech  >> More

When An Uncle Sam Connection Trumps Greentech Innovation  >> More

Israel's cleantech advantage  >> More

21Ventures Newsletter Q3 2009   >> More

Wall Street Journal covers 21Ventures  >> More

VB Research - 'Pipeline' 21Venture Profile  >> More

earth2tech: Greentech Investment Dollars About to Flow Again  >> More

The Philadelphia Inquirer: Green power revives defunct battery plant  >> More

Entech Solar to Host Second Quarter Conference Call on August 10, 2009  >> More

Reuters: 21Ventures set to wait for higher valuations  >> More

earth2tech: How to Win at Cleantech Investing  >> More

21Ventures Newsletter Q2 2009  >> More

21Ventures Newsletter Q1 2009  >> More

Entech Solar Announces Changes to the Board  >> More

WorldWater & Solar Technologies Changes Name to Entech Solar  >> More

21Ventures and the Quercus Trust Award $200,000 Grant to Support the Solar Energy Research of Professor David Cahen of the Weizmann Institute of Science  >> More

The Quercus Trust and 21Ventures Award $100K Grant to Engineers Without Borders - USA  >> More

Frost & Sullivan Lauds Agent Vi For Development Of Next Generation Enterprise-Grade Video Analytics Platform  >> More


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