How to Find Customers for B2B SaaS: The Signal Method
The LinkedIn signals that mark a SaaS buyer who is in-market now, what to send for each, a week-one plan you can run by hand, and when referrals or paid ads beat signals.
The fastest way to find customers for B2B SaaS is to stop building lists of companies that fit your profile and start watching for people showing, this week, that they have the problem you solve. On LinkedIn that is a comment on a competitor's launch post, a post asking "anyone using X for Y?", or a new follow of a competitor page. Those people are already comparing. Below: the signals, a week-one plan you can run by hand, and when referrals or paid ads are the better bet.
Why do most B2B SaaS customer-finding tactics start too late?
The usual advice on how to find customers for B2B SaaS is a list: post content, join communities, send cold email, offer a free trial, ask for referrals. None of it is wrong. The problem is sequence: each channel either waits for the buyer to come to you or sends the same message to everyone, looking or not.
Buyers decide early. In its 2024 Buyer Experience Report, 6sense found that B2B buyers are nearly 70% through their purchasing process before they engage a seller, that 81% already have a preferred vendor at first contact, and that buyers initiate that contact more than 80% of the time. Wait for the inbound form and you are usually the second vendor in a race the first one is already winning.
A buying signal is a public action that shows someone is in-market now, before they fill in anyone's form (the intent data lesson has the definitions). This page covers the SaaS version: where those actions happen on LinkedIn, and what to do in the hour after you spot one.
Where do B2B SaaS buyers show up on LinkedIn?
SaaS buyers research in public more than most B2B buyers, because the tools they compare have public pages, public launch posts and vocal users. Each row below is a behaviour you can see with a free LinkedIn account. The last column is the message to send, written to quote the signal rather than pitch the product.
| Signal | Where | What it means | What to do |
|---|---|---|---|
| Comments or reacts on a competitor's product post | The competitor's company page and its founders' posts | The person follows this category closely enough to react; a question in the comment means an open evaluation | Within a day, reply to their comment with something useful, then connect with a note that quotes it |
| Posts or comments "anyone using [competitor] for [job]?" | Posts tab search for the competitor name plus "anyone", "recommend", "alternative", "switching" | An active comparison, often with a deadline | Answer the question in the thread first; message with one specific reason your tool fits the job they named, and offer a 15-minute look |
| Posts describing the pain your product removes | Posts tab search for the problem words your customers use, filtered to the past week | A problem acknowledged in public, vendor not yet chosen | Comment with a method they can use without you; connect; mention the product only if they ask or in the second message |
| Newly follows a competitor page or engages with its hashtag | The competitor page's follower list and posts tagged with the category hashtag | Early research; weaker than a comment but fresh | Connect with no pitch; let your own posts do the next step |
| Announces a new role in a buying title (Head of Sales, RevOps, Growth) | Posts tab search for "excited to join" or "new role" plus the title | New owners audit the tool stack in their first quarter | Congratulate, ask what they inherited, and offer a comparison note instead of a demo |
| Company posts a job for the role your product replaces or assists | Jobs search for the role title at companies in your segment | Budget exists for the outcome; a tool is cheaper than a hire | Message the hiring manager with how customers use your tool alongside or instead of that hire |
Reddit and X carry the same questions ("what are you using for X?") and are worth a manual search a few times a week; the Reddit method has the queries. Treat them as manual channels; Intentsly monitors LinkedIn only. One more filter: a signal older than about two weeks is cold. A buyer who asked "anyone using X?" a month ago has usually chosen.
How to find customers for B2B SaaS by hand: a week-one plan
This plan takes about an hour a day and a free LinkedIn account. It is built for one person, so the numbers are small on purpose. The example company is hypothetical.
- Day 1: write the signal list. Name three competitors, five phrases customers use for the problem (their words from past sales calls, not your positioning), and the two or three titles that buy. Example (hypothetical): Northwind Sync sells a data-sync tool to RevOps teams; its pain phrases are "HubSpot and Salesforce out of sync", "duplicate contacts" and "manual CSV export every Monday".
- Day 1: save the searches. In LinkedIn's Posts tab, search each competitor name in quotes plus one of "anyone using", "recommend", "alternative", "switching to". Save each pain phrase as its own search with the date filter set to the past week. Follow each competitor's page so its posts land in your feed.
- Day 2: build the watch list. Open each competitor's three most recent posts and list every commenter whose title matches your buying titles, plus anyone who asked a question. Record name, company, post, quote and date in a sheet; the LinkedIn lead generation guide has the sheet layout and the Boolean strings.
- Days 2 to 5: act within a day. Reply in the thread first, then send a connection note that quotes what they wrote and asks one question. No link, no deck. Keep to 15 connection requests and 15 messages a day; a restricted account ends the plan.
- Days 3 to 5: answer the open questions. For every "anyone using X?" post, write the answer you would give a friend, including where your product is the wrong choice. Message the poster afterwards with the one reason it might fit the job they described.
- Day 5: score the week. Count signals found, messages sent, replies and calls booked. Replies under one in ten means the message is pitching; rewrite it to lead with their quote. Signals under ten a week means widen the pain phrases or add a competitor.
- Day 6: ask the first conversations for names. Everyone who takes a call, buyer or not, knows two people with the same problem.
Expect week one to produce conversations rather than contracts. The point is a repeatable loop: watch, quote, reply, book.
How does Intentsly do this for you?
The manual plan breaks at scale: the searches must be re-run daily, competitor threads grow faster than one person can read, and with sending capped the bottleneck is finding the right fifteen people, not messaging them. Intentsly runs the finding and the first conversations, on LinkedIn only.
| Signal from the table above | What Intentsly does |
|---|---|
| Comments and reactions on competitor and industry-leader posts | Post engagement monitoring: people who like, comment or share posts from the competitors and leaders you name |
| "Anyone using X?" and pain-point posts | Keyword post monitoring for the pain points, tools and topics you set |
| New competitor page followers and engagers | Competitor page follower and engager tracking |
| Hashtag engagement in your category | Hashtag engagement monitoring |
| Deciding who is a buyer | Scoring against your ideal customer profile, so the list arrives prioritised |
| Finding the email for a follow-up | Enrichment with verified emails, and export of leads and signals |
| Replying, holding the conversation, booking | The AI SDR sends LinkedIn connection requests and messages, holds the conversation, and sends your Cal.com or Google Calendar link so the buyer books the meeting; HubSpot is the native CRM integration |
If you want the first step done for you, the LinkedIn signals feature watches the competitor posts and keyword searches from the plan above and hands you the list already scored. The limits are the same as the manual plan, stated plainly: up to 2 LinkedIn accounts per plan, a maximum of 30 messages and 30 connection requests per account per day, and Intentsly recommends 15. Monitoring and outreach run in English, Romanian, German and Dutch. The AI SDR sends LinkedIn messages only; it does not send email.
What does this look like in practice?
We ran the method on our own product. Launching an AI sales platform into a market full of outreach tools with bigger budgets, we pointed our own intent signals at founders complaining about cold outreach burnout and let the AI SDR handle replies and booking. The result was 14 qualified demos in 14 days with zero manual outreach, and a reply rate 4x our previous cold campaigns. Most of those leads came from signals caught in real time: the message landed while the person was still describing the problem. The write-up is on the case studies page.
Across Intentsly customers in October 2026, agents find around 1,000 leads a month each and accounts book 2 to 4 meetings a week on average. Those are typical figures, not guarantees; a narrow category with few public posts will run below them.
Other ways to find customers for a B2B SaaS, and when they beat signals
Signals are the fastest route to conversations, not the only one. Three alternatives earn their place.
Referrals and your own network beat signals when you are pre-revenue with fewer than ten customers. Steli Efti's first-10-customers playbook says to ask at least ten people in your network to become customers within 24 hours, and the advice has aged well: people who already trust you convert faster than any stranger. The ceiling is low, so add the signal plan from week two.
Communities and launch sites beat signals when the product is self-serve and cheap enough to try on a whim. In an Indie Hackers thread on where founders found their first customers, Reddit, personal networks, X, LinkedIn and Product Hunt were the most-mentioned channels. For a tool with a sales call in the loop, community posts produce curiosity more than pipeline.
Paid ads beat signals when you already know which message converts and need volume this quarter. Until then, ads pay to learn what a week of signal conversations teaches for free: the pain phrases in the buyers' own words. Cold lists are the one method signals replace outright; a list says who could buy, not who is buying this month.
The next step is to see what the signals look like for your category. Try the AI shows matching buyers for your product with no account, the quickest test of whether your buyers talk in public at all. If they do, the week-one plan is waiting, and the Buying Signal Playbook lists the 12 signals worth chasing and the 8 to ignore.
FAQ
How do I find customers for a B2B SaaS with no network and no budget?
Watch, do not broadcast. Save LinkedIn Posts searches for your competitors' names plus "anyone using" and for the words customers use for the problem, check them daily, and reply in the thread before you message. A free account and an hour a day cover week one. Speed matters more than budget: a reply inside a day beats a polished campaign a week later.
Is LinkedIn worth it for a small B2B SaaS team?
Yes, if your buyers hold titles that post or comment about their tools, which is true for most sales, marketing, product, finance and operations software. It is weaker for buyers who rarely post, such as some technical or regulated roles; there, referrals or a community do more. Test it in a week: fewer than ten relevant posts from the saved searches means LinkedIn is not your main channel.
Should I charge my first SaaS customers or give the product away?
Charge something from the first paying conversation, even a founder discount for a fixed period. A buyer who was asking "anyone using X?" already has a budget line, and a free offer makes them doubt the product more than it helps. Reserve free access for design partners who commit time to feedback, and write down what they owe you in return.
Cold email or LinkedIn first for a B2B SaaS?
LinkedIn first when the signal is on LinkedIn, because replying where the person asked is the most natural message you will send. Email follows for people who accept a connection but go quiet, and for companies that posted a job for the role your product assists. The same message on both channels on the same day reads as a sequence, and sequences get ignored.
How do I tell which commenters are buyers and not peers or job seekers?
Check three things before you message: the title can own or influence a tool decision, the company is in your segment and size range, and the comment asks or compares rather than cheers. "Congrats on the launch" is a fan; "does it handle two-way sync?" is an evaluation. Message the second group first and let the first group see your posts.
How long does it take to get the first 10 customers this way?
Signals shorten the time to conversations, not the time a buyer needs to decide. In our own run we booked 14 qualified demos in 14 days with the method automated; week one by hand should produce replies and a few calls rather than contracts. Count signals, replies and calls each week; once the loop books calls weekly, the first ten customers are weeks away, not quarters.
