Susa Ventures Review: The Seed-Stage Fund That Backs Founders Through Exits

Susa Ventures is a San Francisco-based seed-stage venture firm that has been backing founders since 2013. In that time, they have partnered with over 100 startups and achieved approximately a 10% unicorn rate — a track record that places them among the most consistent early-stage funds of their vintage. Understanding treasury management and cash flow is valuable for any founder.

The firm is perhaps best known for their founder-friendly stance: they explicitly do not take board seats and state that founders should never be removed. This philosophy permeates everything from their deal structure to their portfolio support. They invest across AI, consumer, fintech, healthcare, B2B software, and supply chain — with notable exits including Robinhood (IPO), Casetext (acquired by Thomson Reuters for $650M), and Expanse (acquired by Palo Alto Networks for $800M).

Susa Ventures operates two fund types: their core seed funds (Fund IV is $125M) write $1M-$2M checks at pre-seed and seed, while their Opportunity Funds (Opportunities II is $250M) reserved for follow-on through Series B and C in winning portfolio companies.

This guide covers the firm's actual investment thesis, real portfolio companies, check sizes, and practical advice for getting in front of the team. Whether you're building an AI infrastructure company or a vertical SaaS tool, understanding how Susa thinks about markets and founders will determine whether they're the right fit for your raise.

Susa Ventures describes their core thesis as partnering with "spiky founders" — entrepreneurs with a rare, specific insight into a problem that others have overlooked or misunderstood. Rather than backing generalist operators with broad market thinking, Susa looks for founders who have a disproportionate understanding of their domain, often because they've lived through the problem personally. Understanding net revenue retention benchmarks is valuable for any founder.

The firm invests exclusively at pre-seed and seed stages through their core fund (Fund IV, $125M), writing checks of $1M to $2M. They then use their Opportunity Fund ($250M, Series B/C) to double and triple down on winners from the seed portfolio. This two-tier structure means Susa can be highly selective at entry while maintaining meaningful ownership in companies that break out.

Susa does not take board seats. This is a deliberate policy tied to their belief that founders should retain full control of their companies. In practice, this means your investor relationship with Susa is lighter touch than with most seed funds — you'll get access to their network, frameworks, and lived experience, but not a board observer seat pushing for quarterly updates.

The firm invests across AI, consumer, fintech, healthcare, B2B software, and supply chain/logistics. Their portfolio skews toward companies that become infrastructure — tools and platforms that other businesses and developers rely on rather than pure end-user applications.

Susa evaluates opportunities based on founder insight quality, the size and structure of the market opportunity, and whether the company is building something defensible. They are comfortable with technical, developer-focused products and have a long track record of backing deep tech at the earliest possible stage, often before product-market fit is established.

The firm prefers to lead or co-lead rounds but will participate in rounds where they have conviction and the lead is a trusted partner. Their check size is designed to be meaningful without requiring board involvement — they want to be a partner founders enjoy working with, not a governance obligation.

Susa Ventures deployed Fund IV ($125M) into pre-seed and seed investments over roughly a three-year deployment window, making roughly 40-50 new investments at the $1M-$2M range. The firm has maintained a consistent pace aligned with their fund structure, neither rushing nor slowing meaningfully with market cycles. Understanding NRR and why top quartile exceeds 120% is valuable for any founder.

The Opportunity Fund (Opportunities II, $250M) is reserved entirely for follow-on investment in existing portfolio companies at Series B and C stages. This gives Susa a significant advantage over seed-only funds: they can write larger checks in winning companies without forcing those companies to find new lead investors. For founders, this means Susa can be a stable, predictable investor through multiple financing rounds.

Susa has continued to invest across their core sectors, with notable recent activity in AI infrastructure, vertical AI applications, and healthcare automation. The firm's 2025 AI-focused deployment reflects a deliberate bet on AI-native infrastructure companies building on top of foundation model capabilities rather than competing with them.

In a more selective market environment, Susa has maintained their investment pace without dramatically changing their criteria. The firm remains committed to their founder-first approach and has not introduced additional governance rights or protective terms despite market uncertainty.

Susa's portfolio companies that reached Series B/C in recent years include Together AI (raised from seed to Series B with Susa following), Mashgin (autonomous checkout, unicorn status), and Cluely (AI assistant for sales calls). The firm has demonstrated willingness to lead rounds even in competitive AI infrastructure deals.

Susa Ventures's portfolio includes over 100 companies spanning AI, consumer, fintech, healthcare, B2B software, and supply chain. Their track record includes 11 unicorns, 4 strategic acquisitions, and 1 IPO.

In AI, the firm backed Casetext (acquired by Thomson Reuters for $650M), Expanse (acquired by Palo Alto Networks for $800M), Together AI (platform for developing and training GenAI models, unicorn), Mashgin (autonomous checkout kiosks, unicorn), and Cluely (AI assistant for virtual meetings and sales calls).

On the consumer side, Robinhood (IPO under ticker HOOD) remains one of the most well-known outcomes, alongside Catholic prayer and meditation app Hallow and modern veterinary clinic Modern Animal.

In fintech, Susa's portfolio includes Human Interest (401(k)s for small businesses, unicorn), Newfront Insurance (modern commercial insurance brokerage, acquired for $1.3B), Ascend (financial rails for commercial insurance), and Float (business finance platform).

Healthcare investments include Viz (AI-powered care coordination and disease detection, unicorn), Chapter (Medicare navigation, unicorn), Nourish (virtual nutrition care, unicorn), Regard (AI-powered clinical insights), Medallion (automating medical licensing), and Superpower (digital concierge clinic).

B2B software holdings include Mux (video streaming APIs, unicorn), BetterStack (observability tools for developers), Periscope Data (acquired by Sisense), Rillet (modern ERP for high-growth companies), and Scalyr (high-speed logging, acquired by SentinelOne).

Supply chain investments include Flexport (digital freight forwarding, unicorn), Stord (cloud supply chain for brands, unicorn), Loop (transportation cost management), and Nuvo (trade credit management).

Susa's portfolio approach is concentrated but broad — they invest heavily in the sectors they understand (deep tech, vertical SaaS, AI infrastructure) while remaining open to consumer and fintech opportunities when the founder and insight are exceptional.

Susa Ventures's primary screening criterion is founder "spikiness" — the quality of the founder's insight into the problem they're solving. They look for entrepreneurs who understand a problem at a level that cannot be replicated by someone who hasn't lived it. This typically means technical founders who've personally felt the pain point and built a solution for themselves before turning it into a product.

Market opportunity must be large and structurally interesting. Susa prefers markets that are in early innings of a structural shift rather than mature, consolidated categories. They are attracted to category-creation opportunities where being early matters significantly.

Product depth matters more than polished metrics at the seed stage. Susa wants to see that founders have built something real and that real users — even if small in number — are getting significant value. Early traction through user love, not just revenue, is a positive signal.

Susa evaluates whether a company has a defensible position. This can come from proprietary technology, network effects, deep integration with customer workflows, or simply being first in a category. They are skeptical of companies with no clear moat beyond team execution.

The firm's no-board-seat policy means they care deeply about founder motivation and integrity. They are investing based on trust in the founder rather than governance rights that would let them intervene if things go wrong. This makes character and communication quality even more important.

Fit with Susa's specific expertise matters. The firm has deep experience in AI infrastructure, developer tools, vertical SaaS, and fintech. Companies in these spaces benefit most from Susa's network and operational frameworks. Companies in consumer hardware or hardware-focused deep tech are less natural fits.

Susa prefers companies with capital-efficient business models, particularly those that can reach meaningful revenue without massive burn. While they invest in companies at pre-seed before product-market fit, they expect founders to have a credible plan for how the business becomes self-sustaining.

The most effective way to reach Susa Ventures is through a warm introduction from a portfolio founder, another investor Susa trusts, or a member of the broader San Francisco startup ecosystem. Susa's relationship-driven approach means they are far more likely to take a meeting when a trusted peer vouches for a founder.

Susa accepts cold submissions through their website, susaventures.com, but the response rate for cold inbound is lower than for warm-referred deals. If pursuing a cold outreach approach, the message should lead with the specific founder insight and why it is spiky — not generic positioning language.

When reaching out, focus immediately on the problem and the founder's unique angle on solving it. Susa has seen thousands of pitches and can detect templated messaging instantly. The outreach should convey that the founder has a perspective on the market that is genuinely different from what Susa has seen before.

Founders should be prepared to discuss their company at any stage of the conversation — Susa often engages substantively in early emails if the insight is compelling. The firm moves quickly when conviction forms, sometimes making decisions within days of an initial meeting.

After an initial meeting, follow-up cadence should be regular but not pushy. Susa prefers founders who are heads-down building rather than constantly fundraising. Updates on product milestones, customer wins, and key hires are more compelling than fundraising-focused communications.

Building a long-term relationship with Susa is valuable even if your current round doesn't result in an investment. The firm is active in the ecosystem and can provide introductions to other investors, potential customers, and hiring connections. They are known for being good ecosystem citizens who help founders even when not invested.

Do not approach Susa with a generic pitch deck. Instead, lead with a specific observation about a market opportunity — one that demonstrates you see something others don't. If you cannot articulate your unique insight in the first paragraph of an email, Susa will not respond.

While Susa Ventures invests at the earliest stages, they expect founders to have a command of their business mechanics. This includes realistic burn rate projections, path to revenue, and how capital is deployed over the runway period. Founders who cannot explain their SaaS unit economics in plain language will struggle in any Susa conversation.

Early-stage financial preparedness means having clear assumptions about customer acquisition cost, lifetime value, and the timeline to meaningful revenue. Even if these numbers are nascent at the pre-seed stage, having a coherent model for how the business scales financially is a positive signal.

Working with a fractional CFO can sharpen your pitch and due diligence readiness considerably. Professional financial guidance helps founders build grounded projections, prepare for the scrutiny Susa applies to business model assumptions, and maintain clean financial infrastructure as the company grows.

Financial projections should reflect realistic downside and upside scenarios. Susa evaluates whether founders have genuinely stress-tested their plans rather than presenting optimistic "hockey stick" projections that ignore market risk.

KPI fluency is important. Susa will probe founders on which metrics matter most to their specific business and why. The ability to explain not just what the numbers are, but why they are the right metrics to track, is a meaningful differentiator in conversations with the firm.

For founders raising from Susa or any top-tier seed fund, investor-ready financials and clear articulation of the capital plan set you apart from the majority of pitch conversations. The seed market is competitive; founders who demonstrate financial maturity are far more likely to advance in Susa's process.

Whether you are preparing to pitch Susa Ventures or navigating an early-stage raise with other top investors, professional financials and clear thinking about your business model will set you apart. Our team has helped seed-stage companies present compelling financial narratives that resonate with investors like Susa.

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