How to Find Your First 100 Users for Your New SaaS Product

TL;DR: Your first 100 users will come from direct, specific, founder-led effort aimed at a very specific type of person. This guide covers where early users actually come from, which channels work at zero scale, how to turn those first users into more, and the mistakes that most founders make before they've proven anything.

You're Not Growing Yet; You're Validating

Each early user is a data point answering a set of questions you can't answer from a spreadsheet:

• Does this product solve a real problem?
• For whom, specifically?
• In what context does the value actually land?

Treating this phase as pre-growth, not early growth, unlocks better decisions about where to spend your time and what to take seriously. A founder who signs up 100 highly specific, manually acquired users in six weeks has more usable product intelligence than one who drives 1,000 signups through a paid campaign.

Why Scalable Channels Don't Work Yet

Paid ads, SEO, and viral loops all require something you don't have at this stage: volume, data, and proven messaging. Running Google Ads before you know who your user is, what language they use to describe their problem, and what makes them convert wastes budget and generates noise that looks like signal.

The channels that work at 100 users are almost always manual, direct, and founder-driven. Manual channels produce conversations that automated ones can't.

Know Who You're Looking For Before You Look

This is the step most founders skip, and it's the most common reason early acquisition stalls. You can't find the right users if you haven't defined what "right" means with enough specificity to act on.

→ Your TAM (Total Addressable Market) doesn't matter yet; however, your IEA (Ideal Early Adopter) does.

The IEA is a specific type of person who has the exact problem, is already looking for a solution, can tolerate rough product edges, and is willing to give real feedback. This is not your eventual customer. It's the person whose pain is sharp enough that they'll use version 0.8 of your product and tell you what's missing.

As a useful exercise, you can write a one-paragraph description of the first 10 people you want to reach; if you can't specifically describe them, the definition isn't tight enough yet.

Manual Outreach: The Channel Most Founders Underuse

Direct, personal outreach is the highest-conversion early acquisition channel available. It's also the most avoided, because it feels uncomfortable and doesn't scale. Neither is a reason to skip it.

The Cold Outreach

Reach people who match your IEA profile as exactly as possible. The channels that work best for this: LinkedIn, Twitter/X, niche Slack and Discord communities, and email via mutual connections.

What you say matters just as much as where you say it. Lead with the problem:

"I'm building something for founders who struggle with (X). Does that sound like something you encounter?" converts better than a product pitch. You're asking if the problem is real for them. That's a low-friction question that opens a conversation.

Expect a 10–20% response rate on cold outreach when the message is specific and problem-focused. When you get no reply, follow up once after 5–7 days. If still nothing, move on.

Warm Network Activation

Before you send a single cold message, map everyone you know who either matches your IEA or knows someone who does. Former colleagues, investors, advisors, customers from previous ventures, classmates, and anyone with proximity to the problem.

The ask that works: "Can you introduce me to one person who deals with this problem?" It's specific, it's low-friction, and it gives the person something concrete they can do.

Users from your warm network convert at much higher rates than cold outreach. They also give better feedback, because they came in with a relationship attached.

Founder-Led Sales as a Product Research Tool

The insight from 20 founder-led sales conversations is worth more than most formal market research.

• Listen for hesitations: What gives someone pause before they agree to try it?
  
• Listen for reframings: When a prospect describes what the product would do for them, do they use the same language you use or different language?
  
• Listen for unexpected use cases: Often the most valuable early adopters have a slightly different application than you anticipated.

Communities: Where Early Traction Hides in Plain Sight

Community channels are chronically underused, either because founders don't know the right places or because they approach them wrong and get ignored.

• The wrong approach: Post a product link and disappear. This gets you ignored at best, banned at worst, and burns the credibility of the community channel permanently.
  
• The right approach: Participate genuinely first, then introduce the product as relevant to an actual conversation. Answer questions in your area of expertise. Share a useful framework.

Engage with other people's posts. Do this for two to four weeks before any product mention. When you do introduce the product, it should feel like a natural addition to a conversation that already exists.

The founders who do this well feel like members of a community who happen to have built something relevant.

The Best Communities for Early SaaS and Product Traction

• Indie Hackers: Builders and founders who are receptive to early products and give honest feedback.
• Hacker News (Show HN): High variance, but when it lands, the signal is real and the audience is qualified.
• Product Hunt: Good for visibility and a short-term spike; weaker for long-term retention and genuine learning.
• Reddit: Niche subreddits specific to your problem domain are consistently underrated; audiences are engaged and self-selected.
• LinkedIn communities and newsletters: Particularly strong for B2B SaaS where your IEA is a professional in a specific function.
• Slack and Discord communities: Organized around specific problems or tools; often where the most active early adopters are.

Building Your Own Micro-Community as an Acquisition Channel

Some founders create a community before or alongside the product. This is a longer play, but it produces extremely high-quality early users with unusually high activation rates.

The pattern: launch a subreddit or Discord group for the exact problem your product solves before the product is fully built. Build an audience of people who care about the problem. When the product is ready, your first users are already waiting.

Content That Works Before You Have SEO Authority

SEO takes time. But content-driven traction doesn't have to wait for domain authority to accumulate.

The "Founder Building in Public" Approach

Sharing your build process on LinkedIn, Twitter/X, or a personal blog attracts early adopters who root for founders.

• What to share: The decisions you're making, the mistakes you're learning from, the user feedback shaping your product, and the product philosophy behind the choices.
  
• What not to share: Feature announcements framed as marketing. Nobody who doesn't already care about your product wants to hear about your new dashboard filter.

Building in public works because it creates trust: there's a real person behind the product with real reasoning who is accountable to an audience.

SEO as a Long-Term Bet

Start writing SEO content from day one. Although you don't drive much traffic, it will eventually compound. Articles targeting the informational queries your IEA is already asking become durable acquisition assets three to six months out, long after your launch momentum has faded.

The framing that works at this stage: problem-first, outcome-focused. Write for the questions your early adopter types into Google at 11pm, not for the features your product offers. The former drives qualified organic traffic.

Getting in Front of Users You Don't Own

Founders with no audience can still reach large, qualified ones. The key is understanding which platforms and people already have the attention of your IEA and how to get in front of it without building from scratch.

Newsletter Sponsorships and Co-Promotions

Niche newsletters with 1,000 to 10,000 engaged subscribers frequently outperform large generalist ones for early-stage products. The audience is self-selected, and the trust is already established. They can be free or cheap in exchange for a content contribution, an essay, a framework, or a data point the newsletter's author finds genuinely useful. Target newsletters your IEA already reads.

Partnership and Integration Plays

If your product integrates with a tool your IEA already uses, their user base is a warm audience with demonstrated context for the problem you solve. Co-marketing with complementary, non-competing tools is consistently underutilized at early stages.

Even a "featured in" mention from a tool with 10,000 active users can generate your first 50 signups.

Turning Early Users Into More Users

Your first 100 users are also your most efficient source of the next 100; timing is everything. Ask after the user has experienced real value, not at signup, not in an automated onboarding email three days in. Ask when they've done something in the product that worked or when they've expressed that it solved a problem for them.

Be specific: "Who else on your team deals with this?" or "Is there someone in your network building something similar?"

Referral programs with points and rewards are often a distraction at an early stage. A personal ask from a founder to a happy user at the right moment outperforms a referral widget.

Turning Happy Users Into Case Studies and Social Proof

A single well-documented case study from an early user converts cold visitors more effectively than almost any landing page copy.

• The format that works: problem → decision → result → quote. Keep it specific, keep it honest, and let the user's language do the work.

Even a short testimonial, placed where your IEA is paying attention, a community post, a LinkedIn share, or the top of your landing page moves the needle in a way that product descriptions can't.

Getting Listed and Reviewed on Credibility Platforms

Reviews on third-party platforms like Clutch, G2, or Capterra carry a different weight entirely. They're independently verified, indexed by search engines, and increasingly cited by LLMs when founders research vendors and tools.

A single five-star review validates your expertise in a space where the reader didn't come looking for you; they found you because someone else said you were worth finding.

Ask your happiest early users to leave a review where your buyers actually look. Make it easy, send the direct link, tell them it takes five minutes, and tell them why it matters. Most users who had a genuine experience are willing to do it.

The Feedback Loop That Improves Both Retention and Acquisition

Early users who feel heard become advocates. When a user asks for something and you ship it, tell them. "We released the feature you asked for" is one of the highest-converting retention and referral messages a founder can send.

The Leaky Bucket Problem: When Acquisition Isn't the Real Issue

Many founders try to solve a retention problem with more acquisition. They pour users into a product that isn't working and interpret slow growth as a marketing failure.

• Users sign up and don't return within the first week
• You're still explaining the core value proposition in every demo
• Your activation rate, the percentage of users who reach a genuine "aha moment," is below 30–40%
• Churn in the first 7–14 days is high and consistent across user cohorts

Any one of these signals suggests the issue is with the product experience, not the acquisition channel. Adding more users accelerates the evidence that something isn't working.

Fixing Onboarding Before Running Any Campaign

Onboarding is the highest-leverage investment a pre-scale product can make. The question to answer: What does a user need to understand, do, and feel in their first session to want to come back?

That question is worth answering before you run a single ad or pitch a single podcast. A product that retains 40% of users will grow faster and more sustainably than one that acquires twice as many and retains 10%.

What Good Early Traction Actually Looks Like

Founders often can't tell whether what they're seeing is real signal or just noise. Early-stage benchmarks are hard to find and easy to misread. This is a framework for evaluating traction honestly.

Vanity Metrics vs. Signal Metrics at Early Stage

Vanity: Signups, page views, social impressions, and product hunt upvotes.

Signal: Activated users, day-7 and day-30 retention, NPS from your first cohort, organic referral rate.

The metric that matters most at 100 users is simple: are people coming back? Unprompted return usage is the earliest reliable signal that the product is earning its place in someone's workflow.

When to Accelerate and When to Stay in Learning Mode

The signal to accelerate:

• Users returning without prompting.
• Unsolicited referrals.
• Feature requests for things you were already planning to build.

→ These indicate that people have found genuine value and are orienting their behavior around your product.

The signal to stay in learning mode:

• Users are polite but passive.
• Churn is high in the first two weeks, and you're still explaining the core value proposition in every sales conversation.

Common Mistakes Founders Make Trying to Get Their First Users

Launching Too Broadly Too Early

• Posting to every channel on day one spreads your attention, dilutes your signal, and makes it impossible to learn what's actually working. A focused launch to 50 highly qualified people produces better feedback.

Waiting for the Product to Be "Ready"

• The product will never feel ready. The founders who reach 100 users fastest ship earlier than they feel comfortable, because they've internalized that the cost of waiting is the loss of learning that only real users can provide, and that loss compounds.

Ignoring the Users You Already Have

• Your next 100 users are hidden inside your first 10. Founders focused on acquisition often overlook the conversations, feedback loops, and referral relationships that their existing users could unlock. The users already in your product are your most qualified source of growth, and most founders treat them like a solved problem the moment they sign up.

The Designli Approach

Designli's product strategy work always starts with a clear picture of who the first users are before wireframes, before architecture, before scope. The SolutionLab is where that work happens: defining the Ideal Early Adopter, mapping their friction, and designing a product that earns its first users rather than hoping for them.

For founders who are ready to build, Traction Lab takes that further. In 90 days, a dedicated team of a product owner, tech lead, full-stack developer, and senior UX/UI designer listens, builds, and iterates on your product with one clear goal: your first real customer. Not a beta user, not a signup. A paying customer. If that doesn't happen, Designli returns your investment entirely.

That promise isn't a marketing line; it's the result of years of refined processes, now accelerated by AI-augmented workflows that compress timelines without cutting corners on quality.

Hypothesis-driven development applies to user acquisition the same way it applies to features. Early traction channels are hypotheses, for example: "We believe our IEA is active in this community and will respond to this message."

Designli builds this thinking into the product roadmap so acquisition strategy and product strategy move together. The result is a build that's oriented toward earning users, not just technically capable of serving them.

Frequently Asked Questions

Do I need a marketing firm to find my first 100 users?

No. The channels that work at this stage are direct outreach, communities, and warm networks, which are founder-driven by nature. Your time spent here is the investment, and it pays better than any retainer.

What's the best platform to launch a new product?

Product Hunt gets the most attention, but it's not always the right first move. A targeted launch to a specific community where your IEA already lives often produces more qualified users and better feedback.

How do I know if my first 100 users are the "right" users?

The right early users experience the core value of the product without heavy handholding, return without being prompted, and can articulate the problem you're solving in their own words.

Building a Foundation for Traction

Stop looking for growth hacks and start looking for people. Your first 100 users are found through manual, unscalable outreach, not big campaigns. By targeting a hyper-specific ideal early adopter rather than a broad market, you gain the clarity needed to build a product that actually sticks.

Reach 100 by being a present member of the communities they trust, and stay there by fixing retention before you ever try to accelerate. If you are ready to build your product and be one step closer to your first customer, schedule a consultation.

You might also like:

• Use the Hook Model to Design an App that Attracts and Retains Users

• SaaS User Retention: Why Products Lose Users and How to Keep Them

• Sell It Before You Build It: How to Presell Your New Product Idea