"As a couple of more experienced entrepreneurs, we were looking for depth and experience from our venture partners when we founded Argon Networks. Greylock really provided that. We got instant respect in the community and valuable insight in charting the direction and strategy of the company. You knew that the Greylock team had seen and done it before. We benefited from that experience."

"The Greylock team offers a strong combination of strategic insight and practical expertise in guiding rapid growth companies. Greylock was an active contributor and highly valued partner every step of the way."

"Greylock invested in Avid less than a year after I started the company. I was 32 years old and this was my first startup. The advice, energy, enthusiasm, confidence and connections that came as a result of our partnership with Greylock was crucial in helping me and the management team build a great company."

"Money is money, but the people behind the money make a significant difference. As board members and as advisors, the quality of Greylock's partners made a valuable difference for CheckFree in our most critical growth years."

"Greylock was a key contributor to CipherTrust’s growth and success. Their industry knowledge and network is amazing and they were available to us literally round the clock. Their judgment, advice and introductions played a key role in helping us expand our business rapidly and eventually take CipherTrust to a successful company exit."

"Greylock helped the Constant Contact team move beyond start-up and into sustained market leadership. They provided the seasoned experience and resources for our next stage of growth."

"Greylock offered strong board leadership, great business insights, and most importantly, a firm commitment to Copper Mountain’s long term success, from launch through IPO and subsequent sale."

"Greylock was a founding investor in Data Domain. They invested post 9/11, during the depths of the downturn in Silicon Valley. In fact, Data Domain was incubated at Greylock's San Mateo offices for the first year of existence. Data Domain has since gone public and expanded operations worldwide and Greylock continues as our partner. Greylock is more than capital, they are deeply involved from day one and they sign on for the whole load. In sum, a great partner for entrepreneurs and start up executives."

"I was fortunate to have many choices when signing a deal to fund my companies, Digg and Revision3. Greylock stood out as being committed to the entrepreneur and the vision, not just short term returns. Greylock is focused on investing in people, not just markets, and the result of this is a supportive and consultative relationship that is there when I call. I couldn't have built our businesses without Greylock. I intend to include them in my future ventures."

"Greylock provides more than just capital. They understand how to truly support entrepreneurs by engaging with and advising them on the right level and by focusing on the issues that really matter to a growing company. I've been fortunate to work with Greylock twice and I'd be glad to do so again."

"Greylock's visceral understanding of the entrepreneurial process is without compare. You don't learn this stuff overnight - it comes from having nurtured great companies over decades."

"Greylock's broad experience in the software market was incredibly valuable to Hyperion's long term success. We were fortunate to benefit from that expertise and support as a private company, through an IPO and with a long period of board membership and advice supporting Hyperion's growth as a public company."

"Greylock partnered with us closely in building iConclude. They rolled up their sleeves and provided valuable mentorship, guidance and resources. They understand what it takes to turn an initial concept into a significant business."

"Greylock has been the ideal partner for Internet Security Systems; truly committed to our success, focused on helping us to build the business and always willing to contribute their experience, know how and access to their robust network of influential business contacts. Greylock's track record of building successful companies is well known in the industry and their commitment to our success made them an invaluable partner to me in building a world class company."

"Great partners are most accurately revealed in challenging times. After launching our product into the IT spending nuclear winter of 2002, Greylock committed additional resources and encouragement in a way that recognized the need for the management team and employees to win in the end. Five years later, we all won."

"Greylock was a very strategic and trusted partner for PortAuthority. We started late in an emerging product category with several venture-backed companies already ahead of us in the market. Greylock’s conviction, broad experience, advice and extensive industry contacts helped us focus and leapfrog past others to rapidly build a category leader – which eventually resulted in one of the highest premium company exits in the sector."

"Greylock partnered with us from the start and has played an instrumental role in Red Hat's success. When I start my next company, Greylock will be my first phone call."

"For 8 years, Greylock has served on RightNow’s board, supporting the long-term vision and strategy of the RightNow executive team. Greylock’s participation has contributed to the RightNow’s ongoing success, as the company gained and today maintains its position as a global market leader."

"Seizing an opportunity and scaling fast are critical issues Greylock understands very well."

"Greylock has been a fundamental and invaluable partner for Third Rock Ventures as we sought to build one of the premier life sciences funds. They guided our fundraising, supported our unique business model and acted as a true venture advisor for our team."

"Greylock played a crucial role in helping Upromise emerge as a leader. They uniquely engaged with me, our board and our management. Simply stated, Greylock made a big difference in the success of our company."

"Greylock has just been a great partner from the time they first invested, before I joined Wily, right through the merger with CA. Their deep understanding of the market and our business; their strategic counsel, coupled with a good focus on development of the team and market that would allow us to succeed and scale; their calm measured approach; and their availability to me and my team, were invaluable."

"Greylock partnered with Zipcar at its critical growth point in transitioning to a disruptive force in urban transportation. Their insights, network and support have been essential to Zipcar’s continuing momentum and development."