For most deep tech companies, the real market is a few hundred people: particular roles at particular companies in two or three industries. LinkedIn is the only channel where you can put your story in front of exactly those people, by name and job title. This guide covers how to do it without wasting the budget.
Your market is smaller than your marketing thinks
Write down the companies that could realistically buy from you in the next two years, then the two or three roles inside each that decide. For a lot of deep tech companies that list lands somewhere near 200 people, and it’s rarely over a thousand.
That number changes everything about how you market. Mass tactics like broad content calendars and brand awareness campaigns are built for markets of millions; pointed at 200 people, they’re noise. The useful question becomes narrower and much more answerable: what do those specific people need to see to take a meeting?
Why LinkedIn and not everywhere else
Because it’s the only channel where that list is addressable. LinkedIn lets you target by company, job title and seniority, which means your film about cutting glasshouse cooling costs can be shown to heads of growing operations at named producers, and to nobody else. No other platform can do that, and cold email, the nearest alternative, arrives without any of the context that makes someone take you seriously.
The same tight audience makes budgets behave differently: reaching 200 people repeatedly costs far less than reaching a million people once. This is the thinking behind our LinkedIn & Growth service, and the rest of this guide is essentially how we run it.
Organic, ads and landing pages are one system
Treat these as three parts of a single machine rather than three channels.
Organic posts from the founder and company page are the proof of competence: when a targeted ad makes someone curious, they look at your profile before they click anything. Ads are the reach: they put the right story in front of the right title regardless of who follows you. Landing pages are where the click goes, and they decide whether the interest becomes an enquiry.
Run one without the others and the system leaks. Ads with an empty company page feel like a front; strong posts with no ads reach only the people who already found you; and any campaign pointed at a generic homepage loses the reader in one scroll.
How to run ads to a tiny audience
The standard playbook assumes scale, so most of it inverts here.
With a few hundred people, frequency is the thing to manage: the same person will see your ads many times, so you need several creative variations rotating rather than one ad running flat. Budgets stay small because impressions are finite; what you spend on is variety and time, not volume. And judge results on quality, not clicks: five enquiries from the right titles beat five hundred visits from the wrong ones. Give it months, not weeks, because your buyers’ timing is driven by their projects, not your campaign schedule.
The creative itself matters more than the mechanics. Short cuts of real film, your facility, your founder talking plainly, outperform stock-photo banners with these audiences; our video guide covers how one shoot produces a year of that material.
Make the landing page match the ad
Every audience gets its own landing page, and the page continues the exact conversation the ad started. If the ad promised an operations story, the page leads with operations, not with the company’s mission.
This sounds obvious and is almost never done. The common pattern is careful, segmented ads all pointing at one homepage, which is like tailoring three different pitches and then giving the same meeting to everyone. Message match is the cheapest conversion improvement available: same headline territory, same audience, one clear next step.
Test the message before you spend on production
Before committing a production budget to one story, run the candidate messages as simple static ads for a few weeks. The clicks tell you which angle your actual buyers respond to, so the expensive assets get built on evidence rather than hunches. It’s an inexpensive discipline that saves the most expensive kind of mistake: a beautiful film built around a message your market ignores.
The honest bit: campaigns fail after the click
Here’s what usually goes wrong, and it isn’t the ads. An enquiry arrives, nobody owns it, and it gets a reply nine days later from whoever noticed it first. The lead has moved on, the campaign gets blamed, and the budget gets cut.
Before spending anything on LinkedIn, decide who owns follow-up and hold them to responding within a couple of days. If nobody at the company can genuinely own that, fix it before you run ads; we say this to prospective clients before taking their money, because campaigns feeding an unattended inbox make everyone involved look bad.
When LinkedIn is too early
If the website can’t yet explain what you do to each audience, campaigns will send curious buyers to a site that loses them, and you’ll conclude wrongly that ads don’t work. The order is foundation first: story, site, film, then reach. If you’re not sure which side of that line you’re on, the LinkedIn & Growth page describes what we need in place before we’ll run a campaign.
Frequently asked questions
How much should a deep tech company spend on LinkedIn ads?
Less than most expect, because a small audience caps useful spend. The real costs are creative variety and patience. Any agency quoting big media budgets for an audience of a few hundred people is solving the wrong problem.
Does organic LinkedIn posting actually generate leads?
Directly, rarely. Its job is credibility: buyers check the founder and company page after an ad or an intro, and consistent, substantive posts are what make that check pass.
How long before LinkedIn ads produce enquiries?
Months, usually, because enquiries arrive when a buyer’s project makes them ready, not when your campaign starts. The ads’ job in the meantime is to make sure that when the moment comes, you’re the company they already know.
Do we need different ads for different buyers?
Yes, and different landing pages too. An engineer and a commercial director respond to different first lines, and showing both the same ad wastes the one advantage LinkedIn gives you: knowing exactly who is looking.