Recruit 50 ideal participants
in 24 hours
Verified participants for any research — product, academic, or market. From $39.9/mo, no per-participant fees.
Sarah Chen
Marcus Wright
Aditi Kumar
Tom Fitzgerald
Yuki Nakamura
Emma Müller
David Park4 kinds of research, one search.
Your sprint planning is Monday. You need 10 PMs by then.
30 fintech CIOs. Not 30 students.
2 weeks to launch. Don’t ship blind.
Senior designers, not Mechanical Turk.
From research question to interview booked — in 4 steps
No panel signup. No screener approval. No waiting. Describe who, let AI do the rest.
Natural language: by role, industry, geography, expertise, seniority — even niche signals like "shipped a feature in last 6 months" or "published in HCI journals."
Lessie searches LinkedIn, company directories, professional databases, and verified networks — no panel signup, no screener approval, no waiting list.
Every result includes role, company, seniority, and a verified work email — with a relevance score. Direct outreach, no panel intermediary.
Send invites, book interviews via Calendly, run surveys, conduct usability tests — your tools, your incentives, your relationships. Lessie just brings the people.
Built for finding the right people — fast
Panels optimize for monetizing professional respondents. Lessie optimizes for your real problem: “find 10 specific people, fast” — whether for product, academic, or launch research.
Prolific gives you students. Respondent.io gives you panel regulars. Lessie understands "fintech PMs who shipped in the last 6 months" or "HCI researchers at top-20 universities" — the niche populations panels can't reach.
- Natural language: role, industry, expertise, recent activity
- Multi-source fusion: LinkedIn + academic profiles + company data
- Scored, ranked results — not a panel-ID dump
You contact participants directly through your own email — no panel platform sitting between you and them. Own the relationship, follow up, build a long-term research network.
- 95%+ verified work emails
- Send invites from your domain — better response rates
- Build a private panel you own (not platform-locked)
Stop waiting weeks for Respondent.io screener approval or Prolific to fill quotas. Type a query, get a ranked list of verified contacts in 60 seconds, send invites the same hour.
- Under 60s from query to verified contact list
- 1-click export to Calendly, Notion, Airtable, CSV
- AI-drafted personalized invite emails included
Respondent.io: $50-100/participant. User Interviews: $30-75/session. Prolific: $0.50/participant + completion bonuses. Lessie: flat $39.9/mo, recruit 5 or 500 — same cost. Spend your budget on incentives, not platform fees.
- No per-participant fees, ever
- No quota limits or screener bottlenecks
- You pay incentives directly — full budget goes to participants
Lessie vs. Respondent, User Interviews, and LinkedIn
Honest comparison against the tools researchers actually use today.
| Dimension | Prolific | Respondent.io | User Interviews | Lessie AI |
|---|---|---|---|---|
| Pricing | $0.50/participant + completion bonuses | $50-100/participant + screener fees | $30-75/session + monthly fee | Flat $39.9/mo, unlimited ✓ |
| Best for | Consumer / student studies | Consumer panels, some B2B | Designer / UX panels | B2B + academic + niche industry ✓ |
| Time to first list | Hours (if quota fills) | 2-6 weeks (screener review) | 1-3 weeks | Under 60 seconds ✓ |
| Targeting precision | Demographic + basic prescreens | Demographic filters | Industry + role tags | Natural language, multi-criteria ✓ |
| Contact info | Anonymous panel handles | Panel-mediated, no direct email | Same — platform-mediated | Verified direct work emails ✓ |
| Relationship ownership | Platform owns | Platform owns participants | Platform-mediated | You own — direct contact ✓ |
Explore Our Solutions
Recruit 50 ideal B2B research participants in 24 hours — verified PMs, UX researchers, founders by role and industry.
Discover and connect with influencers across YouTube, TikTok, Instagram, and more using AI-powered search.
Generate qualified B2B leads with AI — find decision-makers, verify contacts, and automate outreach.
Scout investors that match your startup — search VCs, angels, and funds by stage, sector, and geography.
Find top talent across LinkedIn, GitHub, and more — AI-powered candidate sourcing and outreach.
Identify and connect with strategic partners — co-marketing, integrations, and business development.
Find the right coach for your needs — business, career, executive, and life coaches matched by AI.
Discover wholesale, food, and industry distributors — verify contacts and build partnerships with AI.
AI influencer marketing platform — find creators across TikTok, Instagram, YouTube & LinkedIn with verified contacts.
Find influencers by city and region — search creators in NYC, Miami, Chicago, or any location with verified contacts.
Encontre criadores de conteúdo e influenciadores brasileiros — busque por nicho, cidade e plataforma com e-mails verificados.
Find your first 100 ideal users — AI searches 50,000+ recently funded startups and their decision-makers in 30 seconds.
Encontre 50 contatos B2B qualificados em 60 segundos — emails verificados por cargo, setor e porte. Diferente de Opinion Box e MindMiners.
AI-powered real estate platform — find property leads, verify contacts, and run personalized email campaigns.
AI people search across LinkedIn, X, GitHub, and Crunchbase — find anyone, anywhere, with verified contact data.
AI-powered B2B market intelligence, competitor mapping, and ICP research in minutes.
AI-tailored LinkedIn resumes — ATS-optimized, industry templates, free downloads.
Real-time, verified B2B data — firmographics, contacts, intent signals across 100+ sources.
AI-powered B2B lead finder — verified contacts across 100+ live sources in 2 minutes.
AI-powered B2B proposal generator — personalized with real prospect intelligence in 30 seconds.
Verify B2B vendors, partners, and suppliers — public-source-only, real-time, no FCRA consumer data.
AI-powered LinkedIn profile audit and rewrite — benchmarked against top performers in your role.
Find and contact AI video creators across TikTok, YouTube & Instagram — verified emails, AI-personalized outreach.
Find YouTube video editors, 3D designers, thumbnail designers & social media designers — verified contacts, AI outreach.
Describe your product and audience — Lessie AI surfaces creators, sites, and operators ready to promote you on revenue-share, with verified emails.
Find Amazon FBA sellers, private-label brands, and aggregators by category, revenue tier, and marketplace — with verified contacts.
Describe your stage and thesis — Lessie AI surfaces angels who actively write checks in your space, with verified emails for warm intros.
Describe the operator audience you want — Lessie AI surfaces newsletter writers, B2B YouTubers, and LinkedIn voices with verified emails.
Describe the gap on your board — Lessie AI surfaces domain-expert advisors with operator credibility, plus verified emails.
Describe the audience you want — Lessie AI surfaces creators whose audience overlaps your ICP, with verified emails to pitch directly.
Describe the clinical or scientific question — Lessie AI surfaces physician advisors, KOLs, and researchers with verified emails.
Describe the talk you want on stage — Lessie AI surfaces a shortlist of qualified speakers with verified emails, ready to invite.
Find CTOs, VP Engineering, and Heads of Platform by stack, scale, and architecture history — with verified emails.
Describe the developer audience and tech stack — Lessie AI surfaces DevRel leaders, advocates, and community-builders with verified emails.
Describe the diligence question — Lessie AI surfaces domain experts who actually know the market, with verified emails for paid expert calls.
Describe your event and audience — Lessie AI surfaces brands likely to sponsor, with the right decision-maker email on every row.
Describe the leadership gap — Lessie AI surfaces fractional CMOs, CTOs, CFOs, and COOs with track records that match, plus verified emails.
Describe the integration you want to build — Lessie AI surfaces SaaS companies with API surface, customer overlap, and the right BD lead with a verified email.
Find LPs — family offices, endowments, fund-of-funds, and HNW allocators — who actually back funds at your stage and thesis.
Find marketing agencies by specialty, client portfolio, and geo — with verified founder and BD emails.
Find brands that sponsor newsletters in your niche — with verified marketing-decision-maker emails.
Find newsletter writers and operators by niche, audience size, and platform — with verified direct emails.
Describe the technology and filing strategy — Lessie AI surfaces patent attorneys with proven prosecution history in your space, plus verified emails.
Describe the guest you want — Lessie AI surfaces a vetted shortlist with verified emails, ready to pitch.
Find resellers, distributors, and channel partners who already sell to your ICP — in plain English, with verified emails.
Describe the revenue-ops gap — Lessie AI surfaces specialists in your CRM, motion, and stage with verified emails for direct hiring.
Find certified Salesforce consultants and partners by cloud, industry, and certification — with verified emails.
Find Shopify Plus partners and design/dev agencies by specialty, brand portfolio, and geo — with verified emails.
Describe the docs or developer content you need — Lessie AI surfaces technical writers with proven samples in your stack, plus verified emails.
Find VPs of Sales, CROs, and Heads of Revenue by stage, ACV, and prior playbook — with verified emails.