Start for free

Recruit 50 ideal participants
in 24 hours

Verified participants for any research — product, academic, or market. From $39.9/mo, no per-participant fees.

Live preview · sample results50+ matched · ranked by relevance
Profile
Match
Company
Title
Email
Country
Sarah ChenSarah Chen
94%
Linear
Senior PM, Growth
✉ Check
🇺🇸US
Marcus WrightMarcus Wright
91%
Vercel
Director of Product Research
✉ Check
🇬🇧GB
Aditi KumarAditi Kumar
89%
Ramp
UX Research Lead
✉ Check
🇺🇸US
Tom FitzgeraldTom Fitzgerald
88%
Stripe
Senior Product Manager
✉ Check
🇮🇪IE
Yuki NakamuraYuki Nakamura
86%
Notion
Staff UX Researcher
✉ Check
🇯🇵JP
Emma MüllerEmma Müller
85%
Figma
Lead Product Researcher
✉ Check
🇩🇪DE
David ParkDavid Park
83%
Loom
Principal UX Researcher
✉ Check
🇰🇷KR

4 kinds of research, one search.

From research question to interview booked — in 4 steps

No panel signup. No screener approval. No waiting. Describe who, let AI do the rest.

1
Describe Who You Need

Natural language: by role, industry, geography, expertise, seniority — even niche signals like "shipped a feature in last 6 months" or "published in HCI journals."

2
AI Scans 100+ Sources

Lessie searches LinkedIn, company directories, professional databases, and verified networks — no panel signup, no screener approval, no waiting list.

3
Get Verified Contacts

Every result includes role, company, seniority, and a verified work email — with a relevance score. Direct outreach, no panel intermediary.

4
Run Your Study, Your Way

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.

🎯
Find the Right 0.1%

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
✉️
Direct Emails, Not Panel Handles

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)
Recruit in 60 Seconds, Not 6 Weeks

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
💰
Flat $39.9/mo — Recruit Unlimited

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.

DimensionProlificRespondent.ioUser InterviewsLessie AI
Pricing$0.50/participant + completion bonuses$50-100/participant + screener fees$30-75/session + monthly feeFlat $39.9/mo, unlimited
Best forConsumer / student studiesConsumer panels, some B2BDesigner / UX panelsB2B + academic + niche industry
Time to first listHours (if quota fills)2-6 weeks (screener review)1-3 weeksUnder 60 seconds
Targeting precisionDemographic + basic prescreensDemographic filtersIndustry + role tagsNatural language, multi-criteria
Contact infoAnonymous panel handlesPanel-mediated, no direct emailSame — platform-mediatedVerified direct work emails
Relationship ownershipPlatform ownsPlatform owns participantsPlatform-mediatedYou own — direct contact

探索我們的解決方案

AI 驅動的解決方案,滿足各種業務需求
🔎
Recruit Research Participants

Recruit 50 ideal B2B research participants in 24 hours — verified PMs, UX researchers, founders by role and industry.

🌟
尋找網紅

利用 AI 搜尋,在 YouTube、TikTok、Instagram 等平台發掘並聯繫網紅。

🎯
尋找客戶

透過 AI 產生合格的 B2B 潛在客戶 — 尋找決策者、驗證聯絡方式並自動化外展。

💰
尋找投資者

尋找符合您新創公司的投資者 — 依階段、產業和地理位置搜尋創投、天使投資人和基金。

💼
招募

在 LinkedIn、GitHub 等平台尋找頂尖人才 — AI 驅動的候選人搜尋和外展。

🤝
尋找合作夥伴

識別並聯繫策略合作夥伴 — 共同行銷、整合和業務發展。

🏅
尋找教練

尋找適合您需求的教練 — AI 配對商業、職涯、高階主管和生活教練。

🚚
尋找經銷商

發掘批發、食品和產業經銷商 — 透過 AI 驗證聯絡方式並建立合作夥伴關係。

🌟
尋找網紅

AI 網紅行銷平台 — 在 TikTok、Instagram、YouTube 和 LinkedIn 上尋找創作者,並提供已驗證的聯絡方式。

🌎
尋找當地網紅

按城市和地區尋找網紅 — 在紐約市、邁阿密、芝加哥或任何地點搜尋創作者,並提供已驗證的聯絡方式。

🇧🇷
Encontrar Influenciadores

Encontre criadores de conteúdo e influenciadores brasileiros — busque por nicho, cidade e plataforma com e-mails verificados.

🚀
尋找早期採用者

尋找您的前 100 位理想用戶 — AI 在 30 秒內搜尋 50,000 多家近期獲得資金的新創公司及其決策者。

🔎
Recrutar Participantes (BR)

Encontre 50 contatos B2B qualificados em 60 segundos — emails verificados por cargo, setor e porte. Diferente de Opinion Box e MindMiners.

🏢
尋找房地產潛在客戶

AI 驅動的房地產平台 — 尋找房地產潛在客戶、驗證聯絡方式並執行個人化電子郵件行銷活動。

🔎
AI 人物搜尋

在 LinkedIn、X、GitHub 和 Crunchbase 上進行 AI 人物搜尋 — 隨時隨地尋找任何人,並提供已驗證的聯絡資料。

🔍
B2B 市場研究

AI 驅動的 B2B 市場情報、競爭對手分析和 ICP 研究,幾分鐘內完成。

📝
LinkedIn 履歷建立器

AI 量身打造的 LinkedIn 履歷 — 針對 ATS 優化、行業模板、免費下載。

📊
B2B 資料

即時、已驗證的 B2B 資料 — 來自 100 多個來源的公司資訊、聯絡方式、意圖訊號。

🔍
B2B 潛在客戶搜尋器

AI 驅動的 B2B 潛在客戶搜尋器 — 在 2 分鐘內從 100 多個即時來源獲取已驗證的聯絡方式。

📝
AI 提案生成器

AI 驅動的 B2B 提案生成器 — 在 30 秒內透過真實潛在客戶情報進行個人化。

🛡
商業背景調查

驗證 B2B 供應商、合作夥伴和供應商 — 僅限公開來源、即時、無 FCRA 消費者資料。

👤
LinkedIn 個人資料優化器

AI 驅動的 LinkedIn 個人資料審核和重寫 — 與您職位中的頂尖表現者進行基準比較。

🎬
聘請 AI 影片創作者

在 TikTok、YouTube 和 Instagram 上尋找並聯繫 AI 影片創作者 — 已驗證的電子郵件、AI 個人化外展。

🎥
聘請創意與影片人才

尋找 YouTube 影片編輯、3D 設計師、縮圖設計師和社群媒體設計師 — 已驗證的聯絡方式、AI 外展。

🔗
聯盟夥伴搜尋器

描述您的產品和受眾 — Lessie AI 會找出願意以收益分享方式推廣您的創作者、網站和經營者,並提供已驗證的電子郵件。

📦
Amazon 賣家搜尋器

按類別、收入層級和市場尋找 Amazon FBA 賣家、自有品牌和聚合商 — 並提供已驗證的聯絡方式。

👼
天使投資人搜尋器

描述您的階段和論點 — Lessie AI 會找出在您的領域積極投資的天使投資人,並提供已驗證的電子郵件以進行溫馨介紹。

✍️
B2B 內容創作者搜尋器

描述您想要的經營者受眾 — Lessie AI 會找出電子報作者、B2B YouTuber 和 LinkedIn 意見領袖,並提供已驗證的電子郵件。

🪑
董事會顧問搜尋器

描述您董事會的不足之處 — Lessie AI 會找出具有經營者信譽的領域專家顧問,並提供已驗證的電子郵件。

🎨
品牌創作者搜尋器

描述您想要的受眾 — Lessie AI 會找出受眾與您的 ICP 重疊的創作者,並提供已驗證的電子郵件以直接推銷。

🩺
臨床顧問搜尋器

描述臨床或科學問題 — Lessie AI 會找出醫師顧問、KOL 和研究人員,並提供已驗證的電子郵件。

🎤
會議講者搜尋器

描述您想在舞台上發表的演講 — Lessie AI 會找出合格講者的入圍名單,並提供已驗證的電子郵件,隨時可以邀請。

💻
CTO 搜尋器

按技術堆疊、規模和架構歷史尋找 CTO、工程副總裁和平台主管 — 並提供已驗證的電子郵件。

🧑‍💻
開發者倡導者搜尋器

描述開發者受眾和技術堆疊 — Lessie AI 會找出 DevRel 領導者、倡導者和社群建設者,並提供已驗證的電子郵件。

🔬
盡職調查專家搜尋器

描述盡職調查問題 — Lessie AI 會找出真正了解市場的領域專家,並提供已驗證的電子郵件以進行付費專家諮詢。

🎪
活動贊助商搜尋器

描述您的活動和受眾 — Lessie AI 會找出可能贊助的品牌,並在每一行提供正確的決策者電子郵件。

👔
兼職高階主管搜尋器

描述領導力不足之處 — Lessie AI 會找出具有符合您需求的過往記錄的兼職 CMO、CTO、CFO 和 COO,並提供已驗證的電子郵件。

🧩
整合夥伴搜尋器

描述您想要建立的整合 — Lessie AI 會找出具有 API 介面、客戶重疊的 SaaS 公司,以及具有已驗證電子郵件的正確 BD 負責人。

🏛
有限合夥人搜尋器

尋找有限合夥人 — 家族辦公室、捐贈基金、基金中的基金和高淨值資產配置者 — 他們確實支持您階段和論點的基金。

📈
行銷代理商搜尋器

按專業、客戶組合和地理位置尋找行銷代理商 — 並提供已驗證的創辦人和 BD 電子郵件。

📧
電子報贊助商搜尋器

尋找在您的利基市場贊助電子報的品牌 — 並提供已驗證的行銷決策者電子郵件。

📰
電子報作者搜尋器

按利基市場、受眾規模和平台尋找電子報作者和經營者 — 並提供已驗證的直接電子郵件。

⚖️
專利律師搜尋器

描述技術和申請策略 — Lessie AI 會找出在您的領域具有成功訴訟歷史的專利律師,並提供已驗證的電子郵件。

🎙
Podcast 來賓搜尋器

描述您想要的來賓 — Lessie AI 會找出經過審查的入圍名單,並提供已驗證的電子郵件,隨時可以推銷。

🏪
經銷商搜尋器

尋找已經向您的 ICP 銷售的經銷商、分銷商和通路合作夥伴 — 以簡單的英文描述,並提供已驗證的電子郵件。

⚙️
營收營運顧問搜尋器

描述營收營運的不足之處 — Lessie AI 會找出在您的 CRM、營運模式和階段中具有專業知識的專家,並提供已驗證的電子郵件以直接聘用。

☁️
Salesforce 顧問搜尋器

按雲端、行業和認證尋找經過認證的 Salesforce 顧問和合作夥伴 — 並提供已驗證的電子郵件。

🛒
Shopify 代理商搜尋器

按專業、品牌組合和地理位置尋找 Shopify Plus 合作夥伴和設計/開發代理商 — 並提供已驗證的電子郵件。

📑
技術寫手搜尋器

描述您需要的文檔或開發者內容 — Lessie AI 會找出在您的技術堆疊中具有成功範例的技術寫手,並提供已驗證的電子郵件。

🎯
銷售副總裁搜尋器

按階段、ACV 和先前的策略尋找銷售副總裁、CRO 和營收主管 — 並提供已驗證的電子郵件。

常見問題

取得關於 Lessie AI 的常見問題解答。

How does Lessie AI find user research participants?

Lessie AI uses an agentic search engine that scans 100+ data sources — LinkedIn, company websites, professional networks, and B2B databases. Describe your ideal participant in natural language (e.g. 'fintech PMs at companies with 50-200 employees'), and Lessie surfaces matched professionals with verified emails and direct contact info, ranked by relevance score.

Why use Lessie instead of Respondent.io or User Interviews?

Respondent.io and User Interviews charge $50-150 per recruited participant, plus screener fees. Lessie is a flat $39.9/mo with no per-participant fee — recruit 5 or 500, same cost. You also get verified emails (not just panel handles), so you can reach out via your own email or Calendly invite, control the relationship, and follow up directly.

What kinds of participants can I find?

Any B2B persona you can describe: SaaS founders, product managers, UX researchers, growth marketers, engineering leads, RevOps, sales reps, customer success, and more. Filter by role, seniority, industry, company size, geography, tech stack, or recent funding. Lessie handles complex multi-criteria queries that traditional research panels cannot.

Can I run incentivized interviews through Lessie?

Lessie provides the participant list with verified contacts. You handle the incentive payment yourself (gift cards, Stripe, etc.) — but because Lessie is flat-fee, you can spend 100% of your incentive budget on participants instead of platform fees. Many teams report saving $1,000+ per study.

How accurate are the participant emails?

Lessie verifies every email in real-time before delivery, with 95%+ deliverability. We prioritize direct work emails over generic ones. If a contact bounces, it is replaced automatically.

Can I export to my recruitment tool?

Yes. Export to CSV, or push directly to Calendly, Notion, HubSpot, or Airtable. You can also use Lessie's built-in outreach to send personalized invitations and book interviews directly.

Can I use Lessie for academic research?

Yes — and this is one of Lessie's strongest use cases. Prolific and MTurk skew toward students and general consumers, which doesn't fit B2B or industry-specific academic studies (e.g. studying fintech adoption among CIOs, or HCI research with senior PMs). Lessie indexes professionals by role, expertise, and industry signals, giving you direct verified emails for IRB-approved outreach. Many academic teams use Lessie alongside Prolific: Prolific for general consumer panels, Lessie for niche industry populations.

How does Lessie work for pre-launch product research?

Pre-launch research is Lessie's sweet spot. You typically have 2-4 weeks before launch to validate messaging, pricing, or positioning with your target persona — and panels need 4-6 weeks just to fill the quota. Describe your launch target (e.g. "growth marketers at SaaS companies running paid acquisition"), get 50-100 verified contacts in 60 seconds, run concept tests or interviews the same week. Many teams use Lessie for both pre-launch validation and post-launch onboarding research.

Ready to recruit your next 50 participants — for any research?