Sierra Ventures is an early-stage venture firm centered on B2B companies, with strongest conviction in Seed and Series A enterprise software and infrastructure investing. The firm backs founders globally, often as the first institutional check, and combines stage-specialist investing with hands-on support and a CXO advisory network designed to accelerate enterprise customer access.
Evaluation weights
How much weight this firm places on each dimension. Totals 100%.
Revenue, growth, and unit economics
Size, timing, and competitive landscape
Founder experience and execution ability
Differentiation and technical quality
- Bias toward B2B over pure consumer
- Bias toward first-check opportunities with strong founder-market fit
- Bias toward capital-efficient scaling over growth-at-all-costs
- Bias toward enterprise validation through customer access and advisory feedback
Pitch difficulty
How hard it is to get a meeting and close funding from this firm.
- Funded / yr
- 13Deals closed in a typical year.
- Led / yr
- 5Rounds led in the last 12 months.
- Pitches / yr
- ~4420Decks reviewed in a typical year.
- Acceptance rate
- 0.3%Share of pitches that get funded.
Estimated — public data is not fully disclosed.
Why it's hard
- Concentrated focus on B2B enterprise categories rather than broad generalist investing
- High scrutiny on retention, payback, and ICP clarity even at early stages
- Preference for domain-expert founders with credible enterprise buyer access
- Diligence often includes real market validation through the CXO Advisory Board
Sierra is accessible to strong early-stage founders and regularly writes first institutional checks, but its focus is narrow: enterprise-oriented B2B companies with clear ICP, strong retention potential, and efficient go-to-market signals. Its sector specialization and hands-on diligence, including customer validation through its CXO network, raise the bar meaningfully.
Green flags
What drives a yes for this firm.
- Strong founder-domain fit with credible insight into the problem
- Sticky early product usage shown by high gross and net retention
- Clear ICP and evidence of repeatable enterprise demand
- Efficient go-to-market motion with disciplined CAC payback
- Customer validation reinforced by design partners or advisory-board buyer feedback
Red flags
What kills deals and gets a fast no.
- Ambiguous customer segmentation or unclear enterprise buyer
- Weak customer pull or pilots that do not convert to paid usage
- Retention or engagement data that suggests the product is not sticky
- Inefficient go-to-market economics without a believable path to improvement
- Consumer-first positioning without a strong enterprise or infrastructure angle
How to win
Patterns that lead to successful pitches.
- Show sharp ICP definition and why the product wins for that buyer
- Demonstrate sticky early usage, retention, and expansion indicators
- Frame the company as a capital-efficient enterprise growth story
- Use customer references, design partners, and ROI evidence to validate demand
- Position the product within Sierra's core themes like AI, security, infrastructure, health, or deep tech
Fund strategy & identity
Who they are and how they operate.
- Lead or co-lead Pre-Seed, Seed, and Series A rounds with first-check conviction
- Reserve meaningful follow-on capital through later rounds
- Focus on enterprise software, infrastructure, security, data/AI, digital health, and deep tech
- Use a stage-sized fund model to avoid overcapitalizing companies
- Leverage CXO Advisory Board for diligence, customer validation, and enterprise introductions
Firm identity
Investment focus
Industries, themes, and typical ARR expectations.
Industries
Investment themes
Typical check by stage
Typical ARR by stage
Investment thesis
Core beliefs and strategy behind their investing approach.
Sierra Ventures is an early‑stage B2B‑focused venture firm that concentrates on Seed and Series A companies building enterprise software, infrastructure, security, data/AI, digital health and adjacent deep‑tech/robotics categories. The firm explicitly targets generative‑AI as a horizontal enabler and seeks opportunities where enterprise‑grade technology can unlock new industry verticals. Geography is globally inclusive – the firm states “We invest everywhere” and notes that roughly half of its founders are outside Silicon Valley. Sierra does not publish a hard exclusion list, but its public portfolio and messaging make it clear that pure consumer‑only plays are deprioritized unless they have a clear enterprise or infrastructure component. The core belief driving value creation is a stage‑specialist model combined with hands‑on operational support and a CX‑O advisory board that connects founders to Fortune‑1000 buyers. By being the first institutional check and staying involved through later rounds, Sierra aims to build fundamentally capital‑efficient businesses that can scale with disciplined growth.
Decision patterns
How they evaluate and make investment decisions.
Sierra looks for B2B SaaS businesses that demonstrate a sticky product (gross retention 90‑95% and net retention 120‑140%), efficient go‑to‑market (CAC payback <12 months), and a clearly defined ICP. Founders with deep domain expertise and early design‑partner traction are heavily weighted. The CXO Advisory Board provides early customer insight, validates market need and can open enterprise buying doors, making it a core part of the diligence process. Deal‑breakers include weak customer pull, ambiguous ICP, poor retention metrics, or inefficient payback periods. While the firm will back exceptional teams anywhere on the planet as the first institutional check, it expects repeatable GTM dynamics before committing larger Series A capital.
Risk appetite
Sierra Ventures adopts a conviction‑driven but disciplined risk posture. It regularly leads Pre‑Seed, Seed and Series A rounds, often being the first institutional check, and follows on when the thesis validates. The firm balances early‑stage product/market risk with a bias toward capital‑efficient scaling, keeping fund sizes in the $200‑$250 million range to avoid over‑capitalization. This results in an aggressive lead stance on high‑conviction deals while remaining conservative on fund deployment, favouring steady, hands‑on partnership over rapid, vanity‑driven growth.
Notable investments
Key portfolio companies and why they fit the thesis.
- Treasure DataLeadEnterprise data and AI infrastructure platform that matches Sierra’s focus on cloud data and AI for large organizations.
- ZimperiumLeadMobile cybersecurity solution for enterprises, fitting Sierra’s security and infrastructure thesis.
- Spectro CloudLeadKubernetes management for hybrid‑cloud enterprises, aligning with Sierra’s DevOps and cloud infrastructure focus.
- KrispLeadAI‑powered noise‑suppression tool that improves enterprise productivity, fitting the AI/ML thesis.
- RunnableLeadDeveloper‑centric platform for building and deploying applications, matching Sierra’s enterprise software focus.
- SpeedscaleLeadTesting and performance tooling for microservices/Kubernetes, supporting Sierra’s cloud/infrastructure agenda.
- CimulateLeadAI‑native commerce/search technology that applies AI to enterprise commerce, consistent with Sierra’s AI thesis.
Co-invested with
Other firms in this catalog who've backed the same companies.
No catalog overlap found yet. Co-investors are derived from each firm's notable investments — connections may surface as more firms are added.
Partners
Full firm roster — key partners, partners, and the wider team.
Key partners
Mark Fernandes
Managing Partner
Sierra Ventures
Managing Partner at Sierra Ventures focused primarily on software, with experience as an engineer, product operator, research analyst, and venture investor.
Tim Guleri
Managing Partner
Sierra Ventures
Managing Partner at Sierra Ventures and former software infrastructure entrepreneur focused on big data, AI, enterprise software, infrastructure, and vertical SaaS.
Ben Yu
Managing Partner
Sierra Ventures
Managing Partner at Sierra Ventures focused on deep tech, industrial automation, AI/ML, semiconductors, big data, and cloud infrastructure.
Vignesh Ravikumar
Partner
Sierra Ventures
Partner at Sierra Ventures focused on Enterprise SaaS, Vertical SaaS, Digital Health/Healthcare IT, AI/ML, generative AI, marketplaces, and data-driven vertical applications.
Shomik Ghosh
Partner
Sierra Ventures
Partner at Sierra Ventures focused on applied AI, vertical AI, infrastructure, and frontier tech, with prior investing experience at Boldstart Ventures and Top Tier Capital Partners.
Partners
Team
Jing Liong
Investor and Head of Data
Sierra Ventures
Sierra investor focused on Enterprise SaaS, DeepTech, and data-led investment workflows.
Daniel Paredes
Investor
Sierra Ventures
Sierra investor focused on AI, enterprise software, cybersecurity and deep tech.
Anne Gherini
Chief Marketing Officer
Sierra Ventures
Sierra CMO and investor focused on platform, deal flow and GTM strategy.
Brendon Schmidt
Principal & Head of Business Development
Sierra Ventures
Sierra Principal leading BD, CXO engagement, sourcing and portfolio GTM support.
Public voice
Notable statements and public positions.
- "We are focused on seed and series A investments, and the check sizes are anywhere from up to $2 million for a seed investment to up to $6 million for a series A investment." — Mark Fernandes, Forbes interview 2019
- "We have positioned our funds so we’re not too big to do Seed investments, but not too small to provide substantial follow on capital… We’re the partners who invest the first dollar and stay with our Entrepreneurs all the way through IPO." — Sierra Ventures Fund XII blog
- "As we launch Fund 13 at $270 million… we will further our commitment to early‑stage B2B founders who are at the forefront of reshaping the landscape of enterprise software, infrastructure, and groundbreaking technologies, such as generative AI." — Tim Guleri, Fund XIII announcement
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