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Mark Leslie

North America, California, United States, Portola Valley

Description

Mark Leslie is a highly respected figure in the Silicon Valley ecosystem, known for his multifaceted career as a successful entrepreneur, venture capitalist, and academic. He served as the founding CEO of Veritas Software, leading the company from its inception to a multi-billion dollar enterprise before its acquisition by Symantec for approximately $13.5 billion in 2005. This deep operational background provides him with unique insights into building and scaling technology companies. Currently, Leslie is a Lecturer in Management at the Stanford Graduate School of Business, where he imparts his extensive knowledge in entrepreneurship and sales organization to future leaders.

As an investor, Mark Leslie operates primarily through Leslie Ventures, his private investment company, and previously as a Managing Director at August Capital, a prominent venture capital firm. His investment focus is predominantly on early-stage technology companies, particularly those in enterprise software, cloud infrastructure, and Software-as-a-Service (SaaS) sectors. Leslie is highly sought after not just for capital but also for his strategic guidance, especially in areas like sales strategy, go-to-market execution, and organizational scaling, which are critical for nascent companies. He often takes on board roles, actively mentoring leadership teams.

Leslie's portfolio includes several highly successful technology companies that have achieved significant market impact. Notable investments include early-stage participation in Zoom, the video conferencing giant, Pure Storage, a leading data storage company, and Nutanix, a pioneer in hyperconverged infrastructure. His involvement often begins at the seed or Series A stage, demonstrating a commitment to nurturing companies from their foundational phases. For instance, he was an early investor in Zoom, which went on to raise approximately $160 million in venture funding before its IPO, and he also supported Pure Storage through multiple early rounds. His typical first check size for these early-stage investments ranges from approximately $250,000 for seed rounds to $3,000,000 for more developed Series A opportunities, reflecting his capacity to provide substantial capital alongside invaluable strategic advice.

Investor Profile

Mark Leslie has backed more than 26 startups, with 0 new investments in the last 12 months alone. The firm has led 0 rounds, about 0% of its total and boasts 8 exits across its portfolio.

Investment Focus Highlights

  • Concentrates on Seed, Series A, Series B rounds (top funding stages).
  • Majority of deals are located in United States, Israel.
  • Strong thematic focus on Software, Artificial Intelligence (AI), SaaS.
  • Typical check size: $250K – $3M.

Stage Focus

  • Seed (35%)
  • Series A (31%)
  • Series B (23%)
  • Series C (8%)
  • Series E (4%)

Country Focus

  • United States (96%)
  • Israel (4%)

Industry Focus

  • Software
  • Artificial Intelligence (Ai)
  • Saas
  • Enterprise Software
  • Machine Learning
  • Internet
  • Hardware
  • Virtualization
  • Health Care
  • Fintech
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FAQ

Frequently Asked Questions

Learn who this investor regularly partners with—both firms and angels—and explore their latest activity.

Who does Mark Leslie frequently co-invest with?

Mohr Davidow Ventures
North America, California, United States, San Mateo
Co-Investments: 2
Cowboy Ventures
North America, California, United States, Palo Alto
Co-Investments: 2
Kleiner Perkins
North America, California, United States, Menlo Park
Co-Investments: 4
General Catalyst
North America, Massachusetts, United States, Cambridge
Co-Investments: 2
Index Ventures
North America, California, United States, San Francisco
Co-Investments: 3
Menlo Ventures
North America, California, United States, San Francisco
Co-Investments: 2
Andreessen Horowitz
North America, California, United States, Menlo Park
Co-Investments: 3
Lightspeed Venture Partners
North America, California, United States, Menlo Park
Co-Investments: 3
DCVC
North America, California, United States, San Francisco
Co-Investments: 2
Greylock
North America, California, United States, Menlo Park
Co-Investments: 3

Which angels does Mark Leslie often collaborate with?

AP
North America, California, United States, San Francisco
Shared Deals: 3
DS
North America, California, United States, San Francisco
Shared Deals: 2
JR
North America, California, United States, San Francisco
Shared Deals: 2
JS
North America, California, United States, San Francisco
Shared Deals: 2
PB
North America, California, United States, Mountain View
Shared Deals: 2
ED
North America, New York, United States, New York
Shared Deals: 2
LB
North America, California, United States, Sunnyvale
Shared Deals: 3
MH
North America, California, United States, San Francisco
Shared Deals: 2
JT
North America, California, United States, San Francisco
Shared Deals: 5
RS
North America, Minnesota, United States, Minnesota City
Shared Deals: 2

What are some of recent deals done by Mark Leslie?

Pano

San Francisco, California, United States

Pano uses deep learning AI and computer vision to automatically detect, verify and classify wildfire events in real time.

Artificial Intelligence (AI)HardwarePublic SafetySoftware
Series ASep 19, 2022
Amount Raised: $20,000,000
AI21 Labs

Tel Aviv, Tel Aviv, Israel

AI21 Labs specializes in developing AI systems with an unprecedented capacity to understand and generate natural language.

Artificial Intelligence (AI)Generative AIMachine LearningSoftware
Series BJul 12, 2022
Amount Raised: $64,000,000
Helm.ai

Menlo Park, California, United States

Helm.ai develops AI software for driver assistance systems, autonomous driving, and robotics.

Artificial Intelligence (AI)AutomotiveAutonomous VehiclesMachine LearningSoftware
Series BNov 16, 2021
Amount Raised: $26,000,000
Genesis Therapeutics

South San Francisco, California, United States

Genesis Therapeutics unifies AI and biotech to accelerate the discovery of new medicines.

Artificial Intelligence (AI)BiotechnologyInformation Technology
Series ADec 2, 2020
Amount Raised: $52,000,000
Cresta

Palo Alto, California, United States

Cresta leverages artificial intelligence to help sales and service agents improve the quality of their customer service.

Artificial Intelligence (AI)AutomotiveCustomer ServiceIntelligent SystemsMachine LearningNatural Language ProcessingRetailSoftwareTelecommunications
Series AFeb 3, 2020
Amount Raised: $15,000,000
Nines

Palo Alto, California, United States

Nines is the first-of-its-kind radiology practice. Radiologists + Data Scientists + Engineers. Trusted partner.

Artificial Intelligence (AI)Health CareHealth DiagnosticsLife ScienceMachine Learning
Series ANov 22, 2019
Amount Raised: $16,500,000
Clumio

Santa Clara, California, United States

Clumio delivers cloud-based data protection and backup services tailored to enterprise needs.

Cloud SecurityComputerSaaSSoftware
Series BAug 13, 2019
Amount Raised: $40,000,000
Alluxio

San Mateo, California, United States

Data Orchestration for AI and Analytics in the Cloud

AnalyticsArtificial Intelligence (AI)Open SourceSoftware
Series BJan 18, 2019
Amount Raised: $8,500,000
Mutiny

San Francisco, California, United States

Mutiny helps B2B companies generate pipeline and revenue from their target accounts through AI-powered personalized web experiences.

AdvertisingArtificial Intelligence (AI)B2BMachine LearningMarketingPersonalizationSaaS
SeedSep 15, 2018
Amount Raised: $3,000,000
AVA

Palo Alto, California, United States

AVA is a developer of a lightweight health device that monitors and filters pollutants.

Consumer ElectronicsHealth Care
Series AFeb 16, 2018