To get a warm intro to an investor, find the people already one step from that investor, ask one of them for a specific introduction, and hand them a forwardable note plus proof the investor can check. The strongest connectors are usually loose acquaintances and founders the investor has already backed.
Most venture money moves through people the investor already trusts, and only about one deal in ten arrives from a founder reaching in cold. So the question is rarely where to find investors. It is how to reach them through someone they listen to, starting from whatever network you have today.
What a warm introduction actually does
When a third party connects you to an investor, they are putting their name on you: this person is worth your time. That borrowed credibility is the entire value of the introduction.
The sourcing data explains why this dominates. A 2020 study in the Journal of Financial Economics, "How Do Venture Capitalists Make Decisions?" by Paul Gompers and colleagues, surveyed nearly 900 institutional venture capitalists at 681 firms about where their deals come from. Over 30% were generated through professional networks. Another 20% were referred by other investors. 8% were referred by existing portfolio companies. Only 10% came inbound from company management. Those same investors reported spending about 15 hours a week sourcing deals and another 7 hours networking. For most funds, deal flow is a relationship business, and the average firm screens about 200 companies to make four investments in a year.
Why a cold deck struggles on its own
Picture the other side of the inbox. A seed investor opens dozens of decks from strangers, each claiming a large market and real traction, with no way to know which claims hold up. So they spend very little time deciding.
DocSend, which tracks how investors interact with pitch decks, reports that investors spend under three minutes on a first look. A cold deck fights for those few minutes against a wall of noise, with nobody vouching that any of it is real.
Attention is scarcer than it used to be. The Q4 2025 PitchBook-NVCA Venture Monitor reported that AI and machine-learning companies captured 65.6% of US venture deal value in 2025, $222 billion of $339 billion, up from 47.2% a year earlier. That is share of dollars, concentrated in a few very large rounds, so it overstates how many companies benefit. Still, a founder outside that category gets even fewer minutes.
A warm introduction changes the starting conditions. The same deck, forwarded by a trusted connector, arrives pre-screened and gets read with goodwill rather than suspicion. That goodwill is what you are asking the connector to lend you.
Who can actually introduce you
Founders often freeze here, picturing warm intros as something only the well-connected get. Map who already sits one step from the investors you want. Most founders have more of these people than they think:
People already around you. Ex-colleagues, former managers, classmates, friends. The most overlooked source, and the one every founder already has.
Founders an investor has already backed. A portfolio founder's introduction carries unusual weight, because the investor chose to work with them. This is the 8% channel from the Gompers data, and it is the one most founders never work deliberately.
Angels and earlier-stage investors who know the funds you are targeting. A seed angel usually knows the Series A partners well.
Your own users and customers, if any are connected to investors. A customer vouching for the product is a powerful connector.
Operators and venture partners who work near deal flow, and co-investors who already share a cap table with the fund you want.
The surprising part: your most useful connectors are often your looser contacts. A landmark 1973 paper by Stanford sociologist Mark Granovetter, "The Strength of Weak Ties", found people tended to land jobs through casual acquaintances rather than close friends, because distant contacts reach into networks your inner circle cannot.
In 2022 researchers ran the largest test of that idea ever attempted: a five-year randomized experiment on LinkedIn covering roughly 20 million users, about 2 billion new connections, and 600,000 new jobs. The result held. Sinan Aral of MIT Sloan, who co-directed the study, put it plainly: "When we look at the experimental data, weak ties are better, on average, for job mobility than strong ties." The highest-yield connections were moderately weak ties, with the inflection point around ten mutual connections, and the effect was strongest in high-tech and digital industries, exactly where founders are raising.
The takeaway is direct. Your second-degree connections are statistically your best path to a new investor, usually someone two steps out who happens to know the partner you want.
The route most founders never work: the investor's own founders
The short version: the investor's own portfolio founders are the most reachable strong connectors you have, and almost no founder works that channel on purpose.
Look again at that 8%. It is smaller than the 30% flowing through professional networks, and that is the point. The 30% channel requires a network you either have or do not. The 8% channel runs through people you can identify in an afternoon: every fund publishes its portfolio, and every company in it has a founder who raised from the partner you want. Judge a channel by what it yields per attempt you can actually make, rather than by its share of a total that includes networks you were never inside.
Almost nobody works it deliberately, because doing it by hand is slow. You would have to map each portfolio, find the founders, work out who is approachable, write to each one, and track replies, all while building the company. So founders default to the connectors they already know.
The mechanic matters more than the tooling. You are asking a portfolio founder for one introduction to an investor they already have a relationship with, rather than for an endorsement of your numbers. That is a small favor with a short reply, which is why it converts better than a cold approach to the partner.
How to earn intros when you start from zero
If your map comes up empty, start with the weak ties you listed, then work the moves most founders skip.
Get one investor first. The fastest way to build an investor network is to land one backer and then use them. Raise a small first round from friends, family, and local angels. The money matters less than the allies: an investor who has written you a check has every reason to introduce you to the next one, and those introductions compound.
Lower your minimum check size. A high minimum quietly excludes most of the people who would back you. A smaller minimum widens the pool of believers, and each believer is a new set of doors. Pool the small checks into one vehicle so the cap table stays tidy.
Give before you ask, and start early. A warm network is built over months, not the week you decide to raise. Help other founders, be useful to the angels in your space, share what you are learning in public. By the time you need intros, the relationships exist.
Consider an accelerator as a network shortcut. A good program hands you a cohort, a mentor bench, and an alumni base at once. An analysis of accelerator returns compiled by Data Driven VC put Y Combinator's survival rate near 87%, with roughly 45% of its companies raising a Series A against about 33% for seed-stage companies generally. Selection explains part of that gap. The network is the part you are buying.
Be specific when you ask. A vague "can you introduce me to investors" pushes the work onto the connector and usually gets a soft no. Name the partner, name the fund, give one sentence on why they fit.
Timing is why this matters. Forum Ventures, drawing on 300-plus B2B SaaS deals and a survey of about 150 North American investors, found the gap between a seed round and a Series A stretched past two years in 2024, up from about 1.7 years in 2019, with 36% of investors doing more bridge rounds than the year before. Carta put the median wait between rounds at 696 days in Q2 2025, roughly 23 months. A slow raise compounds into a thinner runway.
First-time founders feel this most. Analysis covered by Crunchbase News puts the first-time founder success rate at about 18%, against roughly 30% for founders who have already built something successful. Part of that gap is the network a second-time founder carries into the raise, and that is the piece you can start building today.
Warm intro versus cold outreach
Dimension | Cold outreach | Warm introduction |
|---|---|---|
Attention you get | Seconds, if the message is opened at all | A real read, because someone vouched |
Who vouches for you | Nobody | A person the investor already trusts |
How your deck is read | Against a wall of similar decks | With goodwill, already pre-screened |
What it requires | A clean list and high volume | A relationship and a specific reason |
Does it scale? | Yes, to hundreds of investors | Traditionally no, you run out of connectors |
Best used for | Breadth, filling gaps, testing the message | The funds you most want to reach |
Cold outreach still earns its place, because nobody gets a personal introduction to every fund. Run both: warm intros for the investors you most want, cold outreach for reach. Our breakdown of how to find angel investors for your startup covers sourcing, our comparison of investor matching platforms looks at how founders map connections, and if you are raising in Europe, where to find pre-seed investors in Europe covers the regional networks.
How to write a forwardable intro email
When a connector agrees to help, do not make them write your pitch. Hand them a blurb they can forward in one click. This is the highest-leverage thing you can prepare.
The norm to follow is the double opt-in. The connector checks with the investor first, gets a yes, and only then forwards your details. It respects everyone's time and protects the connector's reputation.
A good forwardable blurb has four parts: what you do, one line of proof, why this investor specifically, and a clear close with your link. Here is the whole thing, ready to fill in:
Subject: [Company] intro, [one-line category]
[Company] helps [who] do [what], in plain words. [One line of proof: a real number, a named customer, a lead already committed, or relevant background.] We are raising a [stage] round of [amount].
I thought of [Investor first name] because [specific reason: thesis, a portfolio company, a public comment, stage and check size]. Happy to share more if useful. Everything is here: [your profile link].
Keep it to that length. The connector should be able to forward it without editing a word.
Make the proof line about the team and the traction. DocSend's Funding Divide 2024 report, which analyzed more than 400 pre-seed and seed startups, found investors spent 40% more time on seed-stage Team slides than the year before, prioritizing proven progress such as traction, product, and financials over market context. That is where the attention goes, so that is what your one line should carry.
Be ready for the terms question, because it lands early. Carta's State of Pre-Seed 2025 reports that the post-money SAFE with a valuation cap is the standard pre-seed instrument, about two-thirds of all SAFEs, with median caps near $10M for rounds of $250K to $1M. A founder who cannot explain their own cap sounds unready, however warm the introduction was.
One reminder that protects you: do not ask someone who barely knows you to vouch for you to someone they barely know. Social capital is a currency, and people spend years building their name. An introduction asks someone to put a piece of it behind you, so the ask works when the connector genuinely knows the investor and has enough of a read on you to feel comfortable.
That rule is about the strength of the two relationships, not about how well you personally know the connector. Approaching a founder you have never met is fine when they have a real relationship with the investor and the ask is small and specific. It stops being fine when you ask a near-stranger to vouch for numbers they cannot check.
The proof gap a warm intro leaves open
Here is the limit of a warm introduction. An intro gets your deck read with goodwill and gets you the call. It does not show that your numbers hold up, that your team is what you claim, or that the traction is real. The connector vouched on trust, so the investor still has to work out what is true, and that is where the repetition starts: the same questions, asked again, by every fund.
Investors have reason to dig. In CB Insights' analysis of 431 venture-backed companies that shut down since 2023, 43% cited poor product-market fit, while the 70% citing lack of capital is usually the final cause rather than the root problem. The checking is getting faster too: Affinity's 2026 report, surveying nearly 300 dealmakers, found 85% now use AI to automate daily tasks, up from 76% a year earlier. An introduction opens the door. What follows depends on how fast the investor can confirm the substance.
This is the problem SeedForge was built to solve, and it closes both halves of the gap.
The first half is the proof. One free 30-minute AI session turns into a Living Profile: a shareable web page laying out your team, traction, model, and the things investors push on, connected to your real data. Attach that link to the forwardable blurb, and the proof travels with the introduction. The investor arrives already knowing what is real, so the call starts one level deeper, and something concrete now sits behind the connector's vouch.
The second half is the channel most founders never work. SeedForge runs matched investor outreach on two tracks, from your own LinkedIn, with you approving every message before it sends. Track one goes to the matched investors themselves. Track two goes to founders who have already raised from those investors, asking them for a warm intro to the investor. That is the 8% channel run deliberately, which is what makes warm introductions scale past the connectors you happen to know.
The profile stays live as your numbers move, so your proof keeps working between rounds. The first 30 days of outreach are free. After that you pay only when an investor engages: $10 per call secured, $10 per warm intro offered. Build the proof once, get noticed continuously, stay focused on building. See one at seedforge.com.
Are warm intros unfair?
It is worth being straight about the downside, because pretending introductions are a pure meritocracy does founders a disservice. Warm-intro networks reflect who already has access, and access is unevenly distributed. In 2024, all-female founding teams received about 2.3% of venture dollars, roughly $6.7 billion of a $289 billion global total, according to data compiled by Founders Forum, while all-male teams took 83.6%. Separately, Crunchbase reported that Black founders in the US received about 0.4% of venture funding in 2024, down from 1.3% at the 2021 peak. Networks mirror the people already inside them, so a system running on introductions can quietly keep the same people out.
Some investors argue the mechanism should go entirely, since it promotes exclusion while narrowing the pool a fund sees. It is a real critique worth sitting with.
The practical response is twofold. Introductions can be earned, since founders who build real expertise accumulate connectors as a side effect of doing good work. And the more an out-of-network founder can show is real, the less the introduction has to carry. When your proof travels with you, a thinner intro still works. Proof is the great equalizer for founders the network was never built to include.
A warm-intro action plan
Build the map. List every investor-adjacent person within two steps of you, weighting loose connections over close ones.
Land one investor early, so you have a backer who can open doors to the next one.
Prepare your materials before you ask: a tight deck, a live profile link, and a clear plan for how to prove your traction.
Ask specifically, one named investor at a time, with the forwardable blurb ready to paste.
Work the portfolio-founder channel for the funds you most want, and run cold outreach in parallel for the ones you cannot reach warmly.
Compound it. Every time you land a check, ask that investor for three more introductions.
Warm intros are a system you can build from wherever your network is today. Treat them that way, and the door that felt permanently closed turns out to have a path leading up to it.
Frequently asked questions
Do you really need a warm intro to raise from VCs?
No, but the odds favor it heavily. In a survey of nearly 900 venture capitalists, only about 10% of deals came inbound from company management, while over 30% came through professional networks and 20% through other investors. Cold outreach still works at scale, so most founders run both channels together.
How do I get a warm intro if I have no network?
Start by raising a small first round from friends, family, and local angels, then use those backers to reach the next investors. In parallel, map your second-degree connections and approach founders already backed by the funds you want. Research on weak ties shows loose acquaintances are statistically your best path.
What is a double opt-in introduction?
It is the polite standard for introductions. The connector checks with the investor first and only forwards your details once the investor agrees. It protects the connector's time and reputation, and it means you never land in an investor's inbox unannounced. Always make your blurb easy to forward without edits.
How do I write a forwardable intro email?
Send the connector a short, self-contained blurb they can forward without editing. Include one plain-language line on what you do, one line of proof such as a real number or named customer, one line on why this specific investor fits, and your profile link. Keep it to a single short paragraph.
Can a portfolio founder introduce me to their investor?
Yes, and it is one of the strongest routes available. About 8% of venture deals come referred by existing portfolio companies, because the investor already chose to work with those founders. You are asking for one introduction rather than an endorsement of your numbers, which makes it a small favor to grant.
Are warm intros unfair to out-of-network founders?
They carry real bias, because networks mirror who already has access. In 2024, all-female teams received about 2.3% of venture dollars and Black founders about 0.4%. The counterweight is proof: the more a founder can show is real, the less work the introduction itself has to do.