Recruiting customers for interviews
5 channels compared by cost, quality, and speed. Cold outreach template that gets 5–10% reply rate. The funnel math you need to plan around.
How do you recruit people for customer interviews?
Five channels, but the arithmetic matters more than the channel: invite fifty to hold fifteen interviews. Half reply, four in five pass the screener, three in four actually turn up.
- The funnel, counted: 30 invited, 15 reply, 12 pass the screener, 9 show up. To hold 15 real interviews, plan to invite 50 or more
- Reply rate 5 to 10% for warm-cold — you found them in a relevant community and your message references something specific they wrote. 1 to 3% for fully cold with no shared context
- A small cash incentive of $50 to $100 lifts the reply rate
- Paid platforms expect $50 to $150 per session. Warm intros and existing customers get a thank-you or product credit instead, not cash
- Recruiting is what makes discovery take weeks, not interviewing: budget two to three weeks for the calendar alone
The 5 recruiting channels
Most teams should mix at least 2 channels per research project. Channel mix depends on stage: pre-product = personal network + LinkedIn. Post-MVP = existing customers + paid platforms.
Existing customers
Use when:Evaluative or usability work, post-MVP feedback
Pitfall:Bias toward you — they'll say nice things. Weight their feedback accordingly. Ask explicitly: "Tell me what's annoying you."
Personal network
Use when:Very early discovery, before you have access to real ICP
Pitfall:Friends-of-friends in your ICP > friends in your ICP. The further removed, the more honest. Push past initial niceties.
LinkedIn outreach
Use when:B2B research, professionals you can't reach via your network
Pitfall:Generic messages get 1–3% reply. Personalized first-line referencing something specific they've posted gets 5–10%. Adding $50–$100 incentive bumps to 15–25%.
Reddit / community channels
Use when:Niche audiences (specific subreddits, IndieHackers, specialized Discords)
Pitfall:Most communities ban DM solicitation. Always read the rules. Always disclose your purpose. Lurk for a week before posting — instant-asker accounts get downvoted.
Paid platforms (User Interviews, Respondent, Prolific)
Use when:Need volume in a hurry; evaluative work where many sessions help
Pitfall:Quality varies. Some respondents are professional research participants giving practiced answers. Vet aggressively in screener — behavioral filter is critical.
Cold outreach template
The template that gets 5–10% reply rate (15–25% with cash incentive). Use for LinkedIn DMs and cold emails.
The funnel math
Plan around realistic conversion. Founders consistently underestimate how much outreach is needed.
Goal: 15 completed interviews
↓ Reach out to 50 people (warm-cold mix)
↓ ~25 reply (50% reply rate, with personalization + incentive)
↓ ~20 pass screener (80% are actually in ICP)
↓ ~17 schedule (some can't fit in calendar)
↓ ~15 actually show up (10–20% no-show rate)
Plan to invite at minimum 3x the number of completed interviews you need. If you only invite 20 people for 15 interviews, you'll fall short and have to start over mid-research.
Recruiting takes time. Use it to prep.
While you're waiting 2 weeks for replies, run a 30-min GoNoGo session. AI strategist asks the same questions you'll ask real prospects, transcript shows where you slipped into pitching. By the time real interviews start, you've already drilled the question rhythm.
Drill the questions free →15 min · No credit card