The LinkedIn ad budget a twelve-person firm should run, and why

Start from the engagement, not the platform

Most firms arrive at a LinkedIn budget one of two ways. Either a vendor suggests a monthly figure that happens to match their management fee, or a partner picks a number that feels safe to defend at the next partners’ meeting. Neither has anything to do with whether the money will come back.

The useful starting point is the engagement itself. A twelve-person firm, whether it is a law practice in Moncton, an accounting firm in Charlottetown or an engineering consultancy in St. John’s, knows roughly what a typical new client relationship is worth over its first year or two. You do not need to publish that figure. You need to hold it in your head while you do the rest of this arithmetic.

From there, work backwards through three questions.

1. How many new engagements does the firm want from this channel in a quarter? Be honest. For most firms this size the answer is a small handful, not dozens.
2. How many qualified conversations does it take to land one? Your partners already know this ratio from their own experience. It is usually several conversations per engagement, sometimes more for complex work.
3. How many people in your market could plausibly become one of those conversations? This is where Atlantic Canada changes everything.

The audience is small, and that changes the math

LinkedIn’s ad tools let you target by geography, company size, job title, industry and seniority. Build the audience a twelve-person firm actually wants (say, owners and senior finance or operations people at companies of a certain size across New Brunswick, Nova Scotia, PEI and Newfoundland and Labrador) and the platform will show you a number. For most firm-sized targeting in this region, that number is small enough to surprise people who are used to national campaigns.

A small audience is not a problem. It is a gift, as long as you plan for it.

In a large market the goal is reach: get in front of as many of the right people as possible, once or twice. In a small market, you can reach the entire relevant audience in a matter of weeks on a modest budget. After that, more spend does not find new people. It shows the same people the same ad again.

So the strategy flips. Frequency over reach. The job is not to be seen once by many; it is to be seen repeatedly, over months, by the few hundred or few thousand people who could actually hire you, with content that changes often enough that the repetition builds familiarity rather than irritation.

This has a direct implication for budget. The ceiling on useful spend is set by audience size and how often you can sensibly show something new to it, not by how much you are willing to invest. Beyond that ceiling, extra money is wasted. Below it, you are not reaching enough of the audience often enough to be remembered when the moment comes.

What to run

Three formats suit a firm of this size and an audience of this shape. Each does a different job.

Thought-leader ads from a named partner

LinkedIn allows a firm to promote posts published from an individual’s profile rather than the company page. For professional services this is the single most important format, because people hire people. A post from a partner, in their voice, on a topic a buyer is currently facing (a regulatory change, a tax deadline, a contract risk), promoted to the small regional audience, builds exactly the kind of familiarity the frequency strategy depends on. In our experience these consistently outperform company-page promotions on every measure that matters.

Document ads

A short, useful document (a checklist, a one-page explainer, a decision guide) shown in the feed, with a lead form gating the full version. These work when the document is genuinely useful and specific. “Five things to know before selling your business in Nova Scotia” from a firm that does transactions is a reason to hand over an email address. A generic brochure is not.

Conversation ads, used sparingly

Sponsored messages from a named person offering something concrete, such as a short call on a specific topic or an invitation to a small event. These are intrusive if overused, and with a small audience that happens fast. One or two well-timed sends per quarter, to a narrow slice of the audience, tied to something timely. Not a monthly drip.

What to avoid: generic brand awareness campaigns with no offer, video of the office, and anything that could have been posted by any firm in the country.

How to split the effort

Rather than dollar figures, think in proportions of a modest total.

• The largest share, roughly half or more, to thought-leader ads from one or two partners, running continuously, with a new post promoted every couple of weeks so the audience sees fresh thinking rather than the same post for a quarter.
• A meaningful second share to one document ad campaign at a time, refreshed each quarter with a new document.
• A small reserve for conversation ads, released only when there is something specific and timely to say.

Budget for the content, not only the media. A partner’s time to write, or a senior person’s time to interview the partner and draft, is the real cost of this programme and the part most firms underestimate. The media spend for a small regional audience is often the smaller line item.

What to measure

Impressions and clicks are reported by default and are almost useless for a firm. What matters is a short chain that ends in a conversation.

1. Frequency and audience coverage. What share of the target audience has seen something from the firm this month, and how many times? This tells you whether the frequency strategy is actually being executed.
2. Engagement from the right people. LinkedIn shows the job titles and companies of people engaging with promoted content. Are they the people you built the audience for? If not, fix the targeting before spending more.
3. Qualified conversations. Not leads. Conversations with someone who fits the client profile and has a live need. Track these in whatever CRM or spreadsheet the firm uses, with the source noted. This is the number the whole budget exists to produce.
4. Cost per qualified conversation. Spend divided by conversations, tracked over a rolling quarter because the numbers are small and lumpy.
5. Engagements and their value. Eventually, which conversations became clients, and what those clients are worth. This closes the loop back to the figure you started with.

Ask at intake how the person first became aware of the firm. People who saw a partner’s posts for six months before calling will often say so, and it will not show up anywhere in LinkedIn’s own reporting.

When to stop

There are three legitimate reasons to stop or pause, and one illegitimate one.

Stop if, after two or three quarters, the cost per qualified conversation is clearly out of proportion to what an engagement is worth, and targeting and content changes have not moved it. Stop if the firm cannot sustain the content side, because promoted content that goes stale does more harm than nothing. Stop if capacity is the constraint and the firm genuinely cannot take on the work the channel is producing.

Do not stop because the first six weeks produced nothing. With a small audience and a frequency strategy, the first six weeks are the price of admission. The firm is becoming familiar to a few hundred people who do not need a lawyer or an accountant this month. The return arrives when they do.

What to do first

Before spending anything, do the arithmetic in a single meeting. Write down the approximate value of a new engagement, the number of engagements the firm wants from this channel per quarter, and the conversations-per-engagement ratio your partners actually experience. Then build the target audience in LinkedIn’s campaign tool and look at the size.

Those four numbers, on one page, will tell you whether LinkedIn is worth running at all for your firm, and roughly how much effort it deserves. Only then pick the partner who will put their name to it, because without that person the rest is just media spend.