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Venture capital deal sourcing through relationships

By Shawn Gregoire, founder of Capstone Outreach · Updated October 2026 · For venture investors and platform teams

Venture capital deal sourcing is how investors find companies before the round is crowded, and the best source is still relationships: portfolio founders, co-investors, angels, scouts, and operators about to start something. Put those people in tiers, give each tier a contact cadence, give before you ask, and keep passed founders warm. Twenty to thirty minutes of follow-up a week compounds into proprietary deal flow.

Inbound decks and demo days show you the same companies every other fund sees. The deals you win on access usually arrive earlier, through a founder who trusts you, an angel who wrote the first check, or a former operator who calls you before she has a deck. That only happens if you've stayed in touch when there was nothing to invest in.

Granovetter (1973, American Journal of Sociology) argued that acquaintances you see less often carry information your close circle doesn't. In sourcing, that's the engineer leaving a breakout company, the seed fund in another city, or the founder you passed on two years ago. A sourcing plan keeps those weaker ties warm on purpose instead of hoping they remember you.

On this page
  1. Who to contact and how often
  2. The 12-month plan
  3. Messages to send
  4. The weekly routine
  5. Mistakes to avoid
  6. What to track
  7. Frequently asked questions

Who to contact and how often

TierWhoHow oftenChannelWhat to send
Portfolio founders and executivesFounders and senior team members at your portfolio companies, plus executives who left them.Regular board or update contact, plus a sourcing-specific conversation every quarter.In person, phone, short email.Real help first (hires, customers, follow-on investor intros), then a specific ask: which operators on their team or in their network might start a company in the next year or two.
Co-investors and upstream fundsPre-seed and seed funds that lead before you, multi-stage funds that follow you, and partners you've syndicated with.A call or coffee every quarter, and a shared deal or market note every month or two.Email, phone, dinners at conferences.Deals that fit their stage and thesis (with founder permission), your current thesis in a few lines, and fast, clear answers when they share something with you.
Angels, scouts, and referral sourcesActive angels, scouts, accelerator and university program leads, startup lawyers, and community organizers in your sectors.A personal note every 6 to 8 weeks, plus a thank-you and outcome update after every introduction.Email, LinkedIn, events.A crisp description of what you're looking for right now, feedback on every intro they sent, and invitations to small founder dinners.
Pre-founders and operatorsSenior engineers, product leads, and go-to-market people at fast-growing companies, researchers near commercialization, and repeat founders between companies.A light touch every quarter, more often when you hear they're leaving.Coffee, LinkedIn message, text once you know them.Introductions to founders they'd like to meet, useful notes on a market they care about, and an open offer to be a sounding board before they have a deck.
Tracked companies and passed foundersCompanies you met but passed on, companies too early for your fund, and founders whose next round you want to see.A check-in every 3 to 6 months, plus a note when they hit a milestone you named.Email and the founder's investor updates.A short reply to their investor update, a relevant intro, and an honest restatement of what you'd want to see to lead or join the next round.

The 12-month plan

WhenFocusActions
Q1 (January to March)Refresh the thesis and the mapWrite your current thesis in five lines and send it to co-investors and referral sources. Rebuild your list of tracked companies. Ask each portfolio founder for two operators worth meeting this year.
Q2 (April to June)Events and new tiesPick two conferences or demo days in your sectors and book coffees around them. Host one founder dinner and invite a mix of portfolio founders, pre-founders, and angels. Thank every referral source from Q1 with outcomes.
Q3 (July to September)Reconnect and follow up on passesReach out to every founder you passed on in the last 18 months and ask how they're doing. Reconnect with operators who changed jobs. Meet each upstream fund to compare what they're seeing.
Q4 (October to December)Review sources and give backList every company you met this year by source and mark which sources led to term sheets or investments. Send year-end thanks to your best referrers. Reset cadences for next year and drop sources that never fit your thesis.

Messages to send

One message is easy. Hundreds of people, all year, is the hard part. Capstone Outreach puts everyone you know on a rhythm you pick, from weekly to every three months. When someone is due, a message like these is already written in your voice from your history with them. You approve it, and it goes from your own email or phone. See how it works.

Start 14 days free, then $25/mo

Everyone on a rhythm. Who is due, and when. Recorded in the app on a demo account.

1. Asking a portfolio founder for operator intros (email)

Subject: Two people worth meeting?

Hi [Name], Thanks again for the time on [topic] last week. One ask, only if it's easy: I'm spending more time this year meeting operators before they start companies, especially in [sector]. Is there anyone on your team or in your network who's quietly thinking about founding something? No pitch needed on their side, just a coffee. Happy to return the favor with intros for your [open role or customer search]. [Your Name]

Why it works: Portfolio founders know who is restless long before a deck exists, and pairing the ask with help keeps it fair.

2. Sharing a deal with a co-investor (email)

Subject: [Company]: [one-line description], raising [round]

Hi [Name], Sharing one that fits your [stage or thesis] focus. [Company] is [one-line description], founded by [Founder], formerly at [Previous Company]. They're raising a [round] and [lead status]. The founder is happy for me to make the intro. Want me to connect you? If it's not a fit, a one-line reason helps me send better ones. [Your Name]

Why it works: Sending relevant deals upstream and downstream is what earns you a place on their list.

3. Thanking a referral source after a pass (email)

Subject: Thanks for the intro to [Founder]

Hi [Name], Thank you for introducing me to [Founder] at [Company]. We met twice and decided not to move forward this round, mainly because [honest reason]. I was impressed by [specific strength] and told [Founder] I'd like to stay in touch. I'm most interested right now in [current focus]. Keep them coming, and thank you for thinking of me. [Your Name]

Why it works: Referrers who hear the real outcome learn what to send you, and they keep sending.

4. Keeping a passed founder warm (email)

Subject: Congrats on [milestone]

Hi [Name], I saw [milestone] in your last update. That's real progress since we met in [month]. When we talked, I said we'd want to see [specific signal] before leading. It sounds like you're getting close. If it would help, I'm happy to introduce you to [relevant person] in the meantime. [Your Name]

Why it works: It shows you were listening and keeps you in the room for the next round.

5. Reaching out to an operator who just left a company (LinkedIn message)

Hi [Name], congrats on [time] at [Company], what a run. If you're taking some time to figure out what's next, I'd enjoy a no-agenda coffee. I spend a lot of time with people exploring ideas in [sector] and might be useful as a sounding board.

Why it works: Operators between roles decide what to build early, and a low-pressure offer gets you in before the round.

6. Reconnecting with a dormant contact (email)

Subject: It's been a while

Hi [Name], I was thinking about our work together on [project or company] and realized it's been far too long. What are you spending your time on these days? I'm investing in [sector] now and would like to hear what you're seeing. Coffee in the next few weeks? [Your Name]

Why it works: Levin, Walter, and Murnighan (2011, Organization Science) found that reconnected dormant ties offered advice that compared favorably with current contacts.

7. Thesis update to angels and scouts (email)

Subject: What we're looking for this quarter

Hi [Name], A short update on what's on our radar: [Thesis point 1] [Thesis point 2] [Check size and stage] If someone in your world fits, I'd be grateful for an intro, and I'll always tell you what happened. Also glad to help any company you've backed with intros of our own. [Your Name]

Why it works: A specific, current thesis makes it easy for referral sources to think of the right founder.

Write yours in 20 seconds

Free, no signup. The example is filled in: press the button, then replace it with your own situation. In Capstone, a message like it is written for each person you know when their check-in is due.

5 free per hour.

The weekly routine

  1. Sort your sourcing list by next contact date and pick the people who are due (about 5 minutes).
  2. Send one deal or useful note to a co-investor or upstream fund.
  3. Thank every person who made an intro this week and tell them the outcome of older ones.
  4. Reply to two investor updates from tracked or passed companies with something useful.
  5. Reach out to one operator who changed jobs or one dormant contact.
  6. Log every new company by source and set the next follow-up date.

Mistakes to avoid

What to track

The founder you passed on may raise again Put founders and co-investors on a rhythm, like every three months. When one is due, a short check-in is written in your voice, so you stay close for the next round.

Start 14 days free, then $25/mo

A study of 20 million LinkedIn members found that acquaintances, more than close friends, led to new jobs (Science, 2022). Capstone keeps those people warm. You approve every message, and it goes from your own email or phone.

Frequently asked questions

What is deal sourcing in venture capital?

Deal sourcing in venture capital is the work of finding companies to invest in, ideally before a round is widely shopped. It includes inbound pitches, outbound research, events, and most of all referrals from founders, co-investors, angels, and operators. Strong sourcing gives a fund earlier access and a better chance to win allocation in competitive rounds.

How do VCs source deals?

VCs source deals through referrals from portfolio founders and co-investors, relationships with angels, scouts, and accelerators, outbound research into sectors they follow, events and demo days, and inbound pitches. The deals with the best access usually come through people who trust the investor, so most funds treat relationship maintenance as a core sourcing activity, not an extra.

What is the difference between deal sourcing and deal screening?

Deal sourcing is finding companies; deal screening is deciding which ones deserve real diligence. Sourcing fills the top of your pipeline through relationships and research. Screening applies your thesis, stage, check size, and team criteria to narrow it down. Good sourcing makes screening easier because referrers who know your thesis send fewer companies that don't fit.

How can a junior VC or analyst build deal flow?

Start by picking a narrow sector and becoming useful to the people in it. Meet operators and early employees at growing companies, help founders with intros even when you won't invest, write short notes on what you're learning, and thank every referrer with an outcome. Keep a list with cadences so these relationships don't fade between deals.

How often should I follow up with a founder I passed on?

Every three to six months is a good default, plus a note whenever they hit a milestone you said mattered. Reply to their investor updates with something useful, not just congratulations. Founders remember investors who stayed engaged after a no, and many funds see their next opportunity with the same founder or their network.

Should I share deals with other VCs?

Yes, when the deal fits their stage and thesis and the founder has agreed to the introduction. Sharing deals is how you earn a place on other funds' lists. Ask for a one-line reason when they pass so your future shares get sharper. Check your fund's own policies on what materials you can forward before sending anything beyond a short description.

Is a CRM for private equity different from a venture capital CRM?

Mostly in the details. A CRM for private equity often tracks fewer, larger deals, plus the bankers, advisers and lenders around them. A venture capital CRM tracks many early companies, founders and co-investors. Both depend on the same habit as this playbook: tiers, a cadence for each, and a note after every touch. Pick a tool your whole deal team will keep up to date.

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