Our Team

Sierra Ventures has mastered the art of starting and scaling technology companies. Each of our Managing Directors and Partners has years of experience growing businesses of all sizes not just as investors, but as entrepreneurs and operational executives in charge of engineering, finance, marketing and operations. These experiences give Sierra a unique perspective that will help companies like yours navigate the rough waters of entrepreneurship and growth. We’re always available. Ready to collaborate as you hit bumps in the road. And committed to partnering with you to succeed.

Mark Fernandes
Managing Director

Mark Fernandes

Managing Director

“My first VC investment was in an open source (long before it was popular) security company. It was an absolute thrill to help build Sourcefire from a small team of developers in Maryland, to its IPO and then a $2.7B acquisition by Cisco. As an investor I have to play many roles and adapt with the entrepreneurs to the many ups-and-downs, but the theme stays the same – let’s do what it takes to build a great company together.”

Mark began his career as part of the founding team of a display company, followed by product roles at Seagate and Cisco. After his MBA, he then spent four years as a research analyst covering the software sector at Robertson Stephens and Merrill Lynch. He joined Sierra in 2002 and focuses primarily on software. Some of his prior investments include Sourcefire (IPO; M&A - Cisco $2.7B), Frontbridge and Opalis (M&A - Microsoft) and DynamicOps (M&A - VMware). Mark holds a BS from Mangalore University (India), a MS from UC Berkeley, and a MBA from Harvard University.

 

Investment Focus

  • Cloud Software
  • Mobile Infrastructure
  • Security Software
  • DevOps Platforms

Contact

Mark Fernandes

LinkedIn

Administrative Assistant: Sarah Recinos

Current Investments

Boomtrain
ElasticBox
Kinnek
Runnable
Sikka Software
Spotzer Media Group
Zimperium

Past Investments

DynamicOps (acquired by VMware, Inc.)
Opalis Software (acquired by Microsoft)
Sourcefire (NASDAQ:FIRE)
Ooyala (acquired by Telstra)
Permeo (acquired by Blue Coat Systems)
Frontbridge Technologies (acquired by Microsoft)
Net6 (acquired by Citrix Systems)
Nexgate (acquired by Proofpoint)

Tim Guleri
Managing Director

Tim Guleri

Managing Director

“It takes blood, sweat and tears to build a company...it is a journey I have been on personally as an entrepreneur. At a very visceral level I feel fortunate and humbled to support the visionary entrepreneurs I meet every day. I relish being a resource for my CEOs—the ‘doctor on call’ as they go through the ups and downs of building a successful company. I'm 24x7, like my entrepreneurs.”

A serial entrepreneur, Tim built two software infrastructure companies: Scopus Technology, which went public in 1995, and Octane Software, where he was Founder/CEO which he sold to Epiphany for $3.2 billion in 2000. In 2002 he became a Managing Director at Sierra. At Sierra, he's taken two companies public, Sourcefire (FIRE) and MakeMyTrip (MMYT), and has been responsible for several M&As. Tim holds a BA in Electrical Engineering from India and an MS in IEOR/Robotics from Virginia Tech. His passion (outside of his family and companies) is soccer.

Investment Focus

  • Marketplaces
  • SaaS (Marketing, CRM, HRMS)
  • Analytics / Big Data
  • Security Infrastructure
  • Enterprise Datacenter Infrastructure
  • Cloud Infrastructure

Contact

Tim Guleri

LinkedIn

Administrative Assistant: Dora Prado

Current Investments

Alpine Data
Hired.com
LeadGenius
Nexenta Systems
Phenom People
Treasure Data
Shape Security

Past Investments

Bina Technologies (acquired by Roche)
Appcelerator (acquired by Axway)
Sourcefire (IPO NASDAQ:FIRE)
MakeMyTrip.com (NASDAQ: MMYT)
Greenplum (acquired by EMC)
Runa (acquired by Staples)
Makara (acquired by Red Hat)
Net6 (acquired by Citrix Systems)
Approva (acquired by Lawson Software, an Infor Affiliate)
Everest Software (acquired by Trilogy)
Red Aril (acquired by Hearst Corp)
Octane Software (acquired by Epiphany)

Ben Yu
Managing Director

Ben Yu

Managing Director

“Throughout my career, I've been fascinated by unique technologies. As an investor, my passion is to help entrepreneurs turn these great technologies into successful products that the world has not seen before, creating new categories—and new market leaders. I am very fortunate to have been involved in countless "world first" products from my portfolio companies, generating hundreds of millions of dollars in sales. My job is to pass on this experience to entrepreneurs, and help them build companies that will become the next market leader.”

Ben joined Sierra in 2000 from 3Com where he served as a Senior Systems Architect and Project Manager. Prior to joining 3Com, while completing his Ph.D. at Princeton University, Ben worked as a Research Assistant at Princeton's Lightwave Communication Research Lab. Prior to beginning his studies at Princeton, Ben held a variety of engineering consulting roles at Metz in Australia. Ben holds both a Ph. D. and Masters of Arts from Princeton and a Bachelor of Engineering with 1st class honors from the University of Western Australia.

Investment Focus

  • Semiconductors & Component Technologies
  • Mobile Communications
  • IT & Cloud Computing
  • Cleantech
  • China Practice

Contact

Ben Yu

LinkedIn

Administrative Assistant: Dora Prado

Current Investments

800App
Applied Microstructures
CNEX Labs
InvenSense (NYSE: INVN)
K4Connect
NextInput
Qeexo
SliverTV
VeriSilicon

Past Investments

AuthenTec (NASDAQ: AUTH)
Digital Media Group (acquired by VisionChina Media)
MicroPower (acquired by Weston Presidio)
Multigig (acquired by Analog Devices)
Novariant (acquired by AgJunction, Inc.)
ParAcer (acquired by Stratos Lightwave)
SemEquip (acquired by Ceradyne, Inc.)
Social Touch (acquired by Legend Holdings)
Sychip (acquired by Murata Manufacturing)
Tempo AI (acquired by Salesforce.com)
Valere Power (acquired by Eltek ASA)
Ximalaya

Aaron Tong
Venture Partner

Aaron Tong

Venture Partner

Aaron Tong joined Sierra Ventures as a Partner in 2012. Prior to joining Sierra, Aaron was at TCL Capital where he served as a Vice President and Board Member. In his three years at TCL Capital, he closed investments in five companies with one IPO in 2011 and two companies currently in the IPO registration process. Before TCL Capital, Aaron held leadership roles at TCL Corporation, Midea Corporation and Motorola, and was an Assistant Professor at National University of Singapore's School of Business. Aaron holds both a Ph.D. Management and Organization from The George Washington University and a Bachelor of Science, Acoustics from Nanjing University, China.

Investment Focus

  • Technology, Media, Telecommunications
  • Mobile Internet in China.

Jim Doehrman
Operating Partner

Jim Doehrman

Operating Partner

Jim Doehrman has joined Sierra Ventures as its first Operating Partner to lead the Firm’s Finance, Investor Relations, HR, and Marketing initiatives and will assist portfolio companies with back office infrastructure. Our CFO, Martha Clarke Adamson, and her team will work with Jim.

Jim is no stranger to Sierra as he was Managing Director Tim Guleri's CFO at Octane Software, just prior to Tim joining Sierra, and helped engineer what was then the largest sale of a private software company ($3.2B). Since then, Jim has had COO, CAO and CFO roles at public and private technology companies and most recently, led explosive growth at two venture capital backed private software companies (digital media pioneer Gracenote -- sold to Sony for $265M and Automotive SaaS company Xtime, -- sold to Cox (AutoTrader) for $325M).

Prior to joining Octane, Jim had his operational and finance training in the public accounting, retail and media industries, including International assignments in London and Mexico City and led the initial IPO of the publisher of "the Dummies" books (eg. "DOS For Dummies"). During his career, Jim has led scores of M&A, debt and equity financing deals valued at over $4Bn.

Area of Expertise

  • Investor Relations
  • Corporate Finance and Accounting Practices
  • Process Improvement
  • Mergers and Acquisitions
  • Contract Negotiation and Strategic Planning
  • International Operations
  • Change Management

Contact

Jim Doehrman

Administrative Assistant: Sarah Recinos

LinkedIn

Martha A. Clarke Adamson
Chief Financial Officer

Martha A. Clarke Adamson

Chief Financial Officer

Martha Clarke Adamson is Sierra Ventures’ Chief Financial Officer. Martha is responsible for the Firm’s finance, human resource, information systems, operation and administrative functions. Prior to joining Sierra in 1996, Martha served as the Chief Financial Officer for MFS Intelenet, the $300 million successor company to Centex Telemanagement, a Sierra Ventures II portfolio company. Prior to her eight year tenure at MFS/Centex, Martha held a variety of financial managerial positions at Amfac, Inc. Martha holds a BS in Business Administration from the University of Florida and a MBA from St. Mary’s College in California.

Contact

Martha A. Clarke Adamson

Administrative Assistant: Sarah Recinos

Ayden Ye
Principal

Ayden Ye

Principal

Ayden joined Sierra in 2012 after finishing his Master in Computer Science from UC Berkeley. During his graduate study, Ayden founded and led Association of Chinese Entrepreneurs (ACE). Prior to Berkeley, Ayden gained entrepreneurial and product management experience in consumer web and mobile through his experience at a number of incubators and startups in both US and China. Ayden also founded Sparkle Inc., in 2010. In college, he led SIFE (Student In Free Enterprise) as Chairman to initiate several social enterprise projects and also served as President of the largest student association at Shanghai Jiao Tong University. Ayden holds a BS from Shanghai Jiao Tong University in Electrical Engineering and an M.Eng in Computer Science from University of California, Berkeley.

Investment Focus

  • Mobile
  • Consumer Web
  • China Investment

Contact

Ayden Ye

Facebook
LinkedIn

Weibo

Vignesh Ravikumar
Associate

Vignesh Ravikumar

Associate

Vignesh joined Sierra in 2013 after the completion of an internship at AGC Partners, a Boston-based investment bank. Prior to that, he graduated from UC San Diego in August 2012. During his time there, Vignesh was involved in a number of organizations including the Undergraduate Investment Society and the UCSD Student Foundation Endowment Fund. He also participated in academic competitions such as the CFA Research Challenge. Outside of UCSD, Vignesh completed internships at Wipro Technologies, a large, publicly traded IT firm and at Kotak Mahindra, one of the largest private banks in India. Vignesh holds a B.S. in Management Science (cum laude) and a Minor in Math.

Contact

Vignesh Ravikumar

LinkedIn

 

Tim Stanley
Strategic Advisor

Tim Stanley

Strategic Advisor

As a Strategic Advisor, Tim will focus on identifying investment opportunities thru his contact network and in his local geographies (primarily Southern California and Nevada). In addition, Tim will work with the Sierra team in ongoing support of its CXO Network and Advisory Board.

Prior to Tim’s current role, Tim was a Partner whose focus at the Firm was on Business Development, Marketing, Strategic Partnerships and Programs, including management and growth of the Sierra Ventures CXO Advisory Board, execution of Sierra’s Annual CXO Summit and the development and scaling of Sierra partnerships with entrepreneurs, angel investors and the broader technology ecosystem.

Prior to joining Sierra, Tim founded and was President & CEO of Tekexecs, a technology focused advisory services company. Before Tekexecs, Tim was SVP of Strategy, Innovation and Industry Solutions at Salesforce.com where he led global growth, innovation and transformation efforts within the company, and for new and existing customers across a broad range of products, industries, solutions and services. Prior to Salesforce, Tim was the CIO & SVP for Innovation and Gaming at Harrah's Entertainment, Inc., now known as Caesars Entertainment Corporation, and CIO and VP of Information Technology at National Airlines. He began his career as an Officer in the US Air Force.

Tim has also been an Adjunct Professor at the Merage School of Business at University of California Irvine. Tim holds a Masters in Business Administration in International Management from Thunderbird School of Global Management, now part of Arizona State University, and a Bachelor of Science degree in Engineering from University of Washington.

Industry Focus

  • Analytics
  • Big Data
  • Business Intelligence
  • Cloud
  • Consumer Web
  • CRM / Loyalty
  • eCommerce
  • Enterprise Systems
  • Hospitality and Entertainment
  • IT
  • Innovation
  • Internet of Things
  • Mobile

Contact

Tim Stanley

LinkedIn

David Schwab
Managing Director

David Schwab

Managing Director

Dave joined Sierra in 1996. Prior to joining the venture capital community, Dave's professional career began at Lockheed Corporation in the software engineering department. Following his tenure there, he joined Sun Microsystems in sales and sales management. In 1991 Schwab co-founded Scopus Technology with a fellow Sun sales manager and two other executives. While at Scopus, he served as Vice President of Sales and Marketing. Scopus was taken public and subsequently acquired by Siebel Systems. Dave holds a Masters in aerospace engineering from Stanford University and an MBA from Harvard University.

Investment Focus

  • Enterprise Software
  • Infrastructure Software

Contact

David Schwab

LinkedIn

Administrative Assistant: Dora Prado

Current Investments

Corrigo
CSS Corp
Parature
Prelert
Revionics Inc.
Trivantis
Zebra Imaging
Zoom Systems

Past Investments

Accruent (acquired by Vista Equity Partners)
360Commerce, Inc. (acquired by Oracle)
CrossLogix (acquired by BEA Systems, Inc.)
Interact Commerce Corp. (NASDAQ:IACT)
Knova (Merger of Kanisa and ServiceWare)
Micromuse (acquired by IBM)
Onlink Technologies (acquired by Siebel Systems)

Peter Wendell
Managing Director

Peter Wendell

Managing Director

Peter Wendell founded Sierra Ventures after ten years in sales and marketing at IBM, growing the firm from a single California-based partner to over a dozen investing professionals, nine funds, and $1.5 billion in committed capital. Peter co-teaches Stanford University's Graduate School of Business, "Entrepreneurship and Venture Capital" with Google CEO, Eric Schmidt. Peter holds a BA from Princeton University and an MBA from Harvard. In addition to his venture capital activities at Sierra Ventures, Peter serves on the board of directors of Merck & Co., Inc. (NYSE:MRK), as one of the three officers of Princeton University's 40-member board of trustees, and recently completed an extended term as a member of the board of the Princeton University Investment Company (PRINCO), including six years as chairman during which time PRINCO's professional managers doubled the University's endowment. In recognition of his work at Stanford and Princeton, Peter was awarded the National Venture Capital Association's American Spirit Award.

Investment Focus

  • Software
  • Technology / Enabled Services

Contact

Peter Wendell

Administrative Assistant: Sarah Recinos

Past Investments

Intuit (NASDAQ:INTU)
Teradata (NYSE:TDC)
OnAssignment (NASDAQ:ASGN)
Fatbrain (acquired by Barnes & Noble)
Centex Telemanagement (purchased by MCI)
Amerigroup (NYSE:AGP)
Healtheon (merged with WebMD)
Intensiva Healthcare (acquired by Select Medical)
NovaMed (acquired by Surgery Partners)

Steven Williams
Managing Director

Steven Williams

Managing Director

Steve joined Sierra in 2000 after helping three companies get up and running: InterCAD, where he was Vice President and General Manager (later sold to Bishop Graphics); Tivoli Systems (NASDAQ:TIVS), as Vice President, Western US; and Marimba (MRBA), Vice President, World Wide Sales and COO. Having spent his career in sales management and operations, Steve applies his strong operating background to the companies in which he invests. Steve holds a BS in Electrical Engineering from Cal Poly, San Luis Obispo.

Investment Focus

  • Enterprise Software, SaaS
  • Internet Infrastructure
  • Content Management
  • Web Analytics

Contact

Steven Williams

LinkedIn

Administrative Assistant: Sarah Recinos

Current Investments

Touch Commerce

Past Investments

Accruent (acquired by Vista Equity Partners)
Adometry (acquired by Google)
Axentis (acquired by Wolters Kluwer)
CrossLogix (acquired by BEA Systems, Inc.)
DynamicOps (acquired by VMware, Inc.)
Marathon Technologies (acquired by Stratus Technologies Inc.)
Permeo (acquired by Blue Coat Systems)
SenSage (acquired by KEYW)
TriActive (acquired by Versata Enterprises)
WebCollage (acquired by Answers.com)