Short answer
Choose your first test buyers by a clear profile, one observable public reason they might have the problem, and a contact route you are allowed to use. A public listing is a source, not proof of a problem or consent to be marketed to.
Why the first buyers matter so much
The first people you test your offer with shape everything you learn. Choose them badly — friends, people outside your segment, a random mix — and even a perfect offer will produce confusing results. Choose them well and ten conversations can tell you more than a hundred survey responses.
Good first test buyers share three things: they match a clear profile, they have an observable reason to care, and you can reach them through a channel you're allowed to use.
Filter 1: A clear profile
Write the profile in one line: type, size and market. For example, "independent online shops in the UK with 100–2,000 products". The profile should be narrow enough that you could recognise a match in a minute.
| Too broad | Clear |
|---|---|
| Small businesses | UK online shops with 100–2,000 products |
| Agencies | Design agencies with 3–20 people handling client requests by email |
| Trainers | Independent B2B trainers running cohort courses |
Filter 2: An observable reason
For each candidate, write down one public, observable fact that suggests they might have the problem. It might be visible inconsistencies in product listings, a job post for an admin role, or a public complaint about a process.
Label it honestly. The fact is a fact — it has a source and a date. The need it suggests is a hypothesis until the buyer confirms it in conversation. Never assume or claim you know their internal problems from a public signal.
Filter 3: A permitted route
A public business contact is a route, not consent to be marketed to. Before you contact anyone, check:
- The channel: business contact forms, a business email listed for enquiries, a community that allows service posts, or your own network.
- The rules: outreach rules differ by country and by whether the recipient is a company, a sole trader or an individual. In the US, the FTC's CAN-SPAM guidance applies to commercial email; in the UK, the ICO publishes direct-marketing guidance.
- The basics: identify yourself, explain why you're writing and include an easy opt-out.
Never collect personal contact details without a basis, and never buy contact lists for a first test.
Build a candidate record
For each of your ten candidates, keep the same fields:
| Field | Example |
|---|---|
| Business | Hartley Home Goods |
| Source | Public shop page |
| Checked | 2 Nov |
| Observed fact | About 640 products; weights shown in both grams and kilograms |
| Need | Hypothesis — to confirm in conversation |
| Route | Contact form on their site |
| Status | Accepted / needs review / excluded |
Remove duplicates, candidates outside the profile and any where the source turned out to be wrong.
Where to find first candidates
| Source | Strength | Watch out for |
|---|---|---|
| Your network | Warm, fast replies | Friends may be polite rather than honest |
| Former employers and colleagues | Real context | Avoid conflicts of interest |
| Industry communities | Concentrated buyers | Follow each community's rules on service posts |
| Public directories and marketplaces | Many candidates | Terms of use; a listing is not consent |
| Businesses you already buy from | Easy introduction | Small sample |
Your existing network is usually the fastest route to the first conversations. Use it to learn, while making sure the people you talk to still match the profile.
How many to contact
About ten relevant candidates per batch is enough to learn and small enough to personalise every message. If you reach fewer than eight relevant people, treat the result as inconclusive rather than drawing conclusions.
Writing the first message
Mention the observable fact, describe the result you deliver in one sentence, offer a small first step and make it easy to say no:
Observable reasons by service type
The observable reason is what makes a candidate relevant rather than random. Good reasons are public, specific and checkable.
| Service | Observable reason | Still a hypothesis |
|---|---|---|
| Catalogue audit | Listings show mixed units or duplicate titles | That the owner sees this as a problem worth paying for |
| Intake workflow setup | The agency's site asks clients to "email us your brief" | That requests actually get lost |
| Help-centre rewriting | Support articles are outdated or contradict the product | That support load is high |
| Supplier research | A job post for a purchasing role | That they want outside help |
| Onboarding guides | Frequent job posts for the same role | That onboarding is slow or costly |
Write the reason in your candidate record exactly as you observed it, with the date. In the message, mention what you saw — never claim to know their internal situation.
A quick quality check for your list
Before you send anything, review the ten candidates together:
- Do all ten match the same profile?
- Does each have a dated source and an observed reason?
- Is each contact route one you're allowed to use?
- Are there duplicates — two contacts at the same business?
- Would you be comfortable if each candidate saw your notes about them?
If a candidate fails any of these, replace it. A clean list of eight is better than a messy list of ten.
Common mistakes
- Choosing by convenience. The easiest people to reach aren't always the right ones.
- Mixing segments. Results from very different buyers can't be read together.
- Treating public data as consent. Follow the outreach rules that apply.
- Claiming to know their problem. Say what you observed, not what you assume.
How Proofoak helps
In Proofoak, each candidate batch is built from your checked offer, your market and test criteria. Every candidate has a source, a check date, an observed fact and a possible channel; the need stays labelled as a hypothesis. Batches are fixed at up to ten before the search, duplicates and out-of-criteria candidates are removed, and you approve every candidate and message yourself.
Frequently asked questions
How do I find my first client?
Start with people and businesses you can reach through your network or a permitted business channel, with a personal message and a sample.
How many first prospects should I contact?
Around 10 relevant ones per batch is enough to learn, and small enough to personalise.
Can I use public contact details?
A public business address is a route, not consent. Follow the outreach rules of the recipient’s country.
Sources and further reading
How we wrote this
Written and reviewed by the Proofoak Research Team on 4 November 2026. Examples are synthetic and labelled. Rules of thumb are our working recommendations, not benchmarks or legal advice. Outreach rules depend on your country and recipient — check them before you contact anyone.