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// ICP · PROSPECTING

How to Find Your First 100 Ideal Customers Without a Database

MAY 2026  ·  8 MIN READ  ·  LEADEAGLE.ONLINE

Most early-stage founders and first-time SDRs believe they need Apollo, ZoomInfo, or some expensive database before they can start prospecting. They don't. For your first 100 prospects, manual methods outperform databases in quality — and often in quantity of relevant contacts too.

Here are 8 methods to build your first prospect list with low or zero cost.

Method 1: LinkedIn Free Search

// METHOD 01

LinkedIn Search (Free)

LinkedIn's free search is powerful for finding people by title, company size, industry, and location. Use filters: People → Title (e.g. "VP of Sales") → Current company size → Industry. Build lists of 20–30 prospects at a time, find their emails using Hunter.io or Apollo free plan, and add them to your spreadsheet.

EFFORT: LOW · QUALITY: HIGH

Method 2: Competitor Customers

// METHOD 02

G2, Capterra, and Trustpilot Reviews

Your competitors' review pages are goldmines. G2, Capterra, and Trustpilot show you exactly who is using competing products — often with their name, company, and sometimes role. Anyone who reviewed a competitor has already proven they buy in your category. These are pre-qualified prospects.

EFFORT: MEDIUM · QUALITY: VERY HIGH

Method 3: Job Postings

// METHOD 03

LinkedIn Jobs and Indeed

Companies posting jobs in roles relevant to your product are signaling active priorities. Search for job postings in roles your product affects — SDR, Sales Ops, Revenue Operations, Growth. The hiring company is likely investing in this area right now. Find the relevant decision-maker and reach out with a timely message referencing their hiring activity.

EFFORT: LOW · QUALITY: HIGH

Method 4: Funding Announcements

// METHOD 04

Crunchbase, TechCrunch, ProductHunt

Companies that just raised funding are actively hiring, scaling, and buying new tools. Crunchbase has a free tier that shows recent funding rounds. Filter by stage (Seed, Series A, Series B), industry, and location. TechCrunch's funding section and ProductHunt launches are also excellent sources. These companies have budget and urgency.

EFFORT: LOW · QUALITY: VERY HIGH

Method 5: Conference Attendee Lists

// METHOD 05

Industry Events and Webinars

Many conferences publish attendee or speaker lists. Industry-specific Slack communities often share event recaps with participant names. If someone attended a conference relevant to your product, they care about that topic — which means they're likely experiencing the problem you solve. Start with speaker lists, then expand to attendees.

EFFORT: MEDIUM · QUALITY: HIGH

Method 6: Twitter/X and Substack

// METHOD 06

People Who Post About Your Problem

Search Twitter/X for people posting about the problem your product solves. "cold email not working," "outbound strategy," "SDR ramp time" — find the people complaining about or discussing these topics. They've self-identified as having the problem. Find them on LinkedIn, and you have a prospect with a proven pain point. Same applies to Substack writers covering adjacent topics.

EFFORT: MEDIUM · QUALITY: VERY HIGH

Method 7: Your Network

// METHOD 07

Warm Contacts and Second-Degree Connections

The most underused prospecting source for founders: people you already know. Go through your LinkedIn connections, email contacts, and former colleagues. Who works at companies in your ICP? Ask for an introduction. Second-degree connections through your network have dramatically higher conversion rates than cold outreach — even a brief "Alex mentioned I should reach out" changes everything.

EFFORT: LOW · QUALITY: HIGHEST

Method 8: Slack and Discord Communities

// METHOD 08

Industry Communities and Forums

Most B2B niches have active Slack or Discord communities (RevGenius, Sales Hacker, Demand Gen groups, etc.). The members are self-selected professionals actively engaged with their field. Don't spam — be a genuine participant. Answer questions, share value, and connect with relevant members. Direct outreach in a community context converts far better than cold LinkedIn.

EFFORT: HIGH · QUALITY: VERY HIGH

Building the List: What to Capture

For each prospect, capture at minimum:

Quality over quantity: 50 highly targeted prospects with verified emails and personalization hooks will outperform 500 scraped contacts with no context. For your first 100, do it manually. The quality of your research directly translates to the quality of your outreach.

List ready. Now build the strategy to work it.

LeadEagle generates your ICP profile, messaging angles, and email sequences so you know exactly what to say to each prospect on your list.

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