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By Invisible WriterUpdated September 4, 20268 min read

What to Post on LinkedIn: 25 Post Ideas for Founders Who Are Out of Ideas

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The short answer

The founders who never run out of LinkedIn content aren't more creative — they run a small system. Every good post does one of four jobs: build authority, show proof, reveal the person, or start conversations. This post gives you 25 concrete ideas across those four jobs, plus the five formats the feed currently rewards and the five that quietly die. Bookmark it, steal from it, and never open a blank composer without a plan again.

'I don't know what to post' is the most common sentence in founder content — and it's almost never true. What people mean is: 'I don't know what's worth saying.' You ship product, talk to customers, hire, fire, lose deals, and change your mind every single week. That's not an empty well; that's an unmined one. The trick is sorting your raw material into the four jobs a post can do.

The four jobs every LinkedIn post does

  • Authority — posts that teach the market how to think. They make you the person associated with an idea.
  • Proof — posts that show the work: numbers, launches, customer wins, mistakes with receipts. They make the authority believable.
  • Personality — posts that show how you think and decide. They're why people choose you over an identical competitor.
  • Conversation — posts designed to pull comments out of your ICP. They tell you what the market cares about and put you in front of the commenters' networks.

A healthy week touches all four. Five authority posts in a row make you a textbook; five personality posts make you a diary. Mix.

Authority posts (7 ideas)

  1. The contrarian take you defend in sales calls anyway — the opinion your customers hear privately, published publicly.
  2. Explain a concept in your space that everyone pretends to understand. The simpler you make it, the smarter you look.
  3. A 'what I'd do with $0 and 90 days' playbook for a problem your ICP has right now.
  4. The industry best practice you think is wrong — with the reasoning, not just the hot take.
  5. A teardown of a company doing something well in your space (like our OpenAI-on-LinkedIn report). Generous, specific analysis positions you as the expert observer.
  6. The question every buyer asks you in the first call, answered better than anyone else has answered it in public.
  7. Your prediction for the next 12 months in your niche, with the two or three signals you're watching.

Proof posts (6 ideas)

  1. A real number from your business and the decision it forced — revenue, churn, response rates, anything with a receipt.
  2. Before/after: the process you used a year ago versus now, and what changed the outcome.
  3. The launch post done right: what you shipped, who it's for, and the specific problem it kills — not 'we're excited to announce.'
  4. A customer story told as a problem, not a testimonial: what was broken, what you did, what changed.
  5. The experiment that failed — what you tried, what it cost, what you'd tell someone about to try it.
  6. A teardown of your own metrics over a quarter: what grew, what stalled, and the one thing you're changing.

Personality posts (6 ideas)

  1. The belief you held when you started that you've since reversed — and the moment that flipped it.
  2. A decision you're wrestling with right now, framed honestly. Vulnerability with stakes outperforms polish without them.
  3. Your actual operating rhythm — how you structure a week as a founder, in embarrassing specificity.
  4. The hire, investor, or customer who changed how you work, and the one sentence they said that stuck.
  5. What you read, watch, or steal from outside your industry — with the connection back to your work.
  6. A moment from the week that captures the real texture of the job: the 11pm customer call, the demo that crashed, the small win nobody outside the team would notice.

Conversation posts (6 ideas)

  1. A genuine either/or question your ICP disagrees about — priced per seat or per usage, remote or office, build or buy.
  2. 'What would you do?' — a real scenario from your business with the decision still open.
  3. The unpopular-opinion audit: ask your network for the take in your industry they're afraid to post.
  4. A request for recommendations in a category you genuinely need — tools, agencies, hires. Gratitude and utility in one post.
  5. Crowdsource a definition: the term in your space nobody agrees on, and your working version of it.
  6. The one-question survey: 'What's the hardest part of X right now?' — then turn the answers into next week's authority post.

Formats that earn reach — and ones that die

Same idea, different packaging, wildly different outcome. Across our study of 1,167 B2B posts and the independent algorithm research, the pattern is consistent: our study of 1,167 B2B posts

Tends to workTends to die
Text post with a strong 2-line hook and short paragraphsA link with one line of commentary
Document/carousel that teaches one thing per slideRe-shared company-page post with 'Proud of the team!'
First-person story with a specific scene and a pointGeneric motivational quote graphics
A numbered list people can saveEngagement bait ('comment YES if…')
Native video with a point in the first 3 secondsCorporate announcement language ('thrilled to unveil')
You don't have a content problem. You have a capture problem. The ideas happen in meetings and customer calls — the system is just not writing them down.

Which is the honest way out of the blank page: keep a running note of opinions, numbers, and moments as they happen, and spend your posting slot choosing one — not inventing one. If you want that whole system run for you — the capture, the writing, the cadence — that's literally what we do at Invisible Keyboard. Book a free content audit and we'll map your first 30 days of posts. Book a free content audit

Frequently asked questions

What should I post on LinkedIn as a founder?

Rotate four jobs: authority (teach the market), proof (show real numbers and stories), personality (how you think and decide), and conversation (questions your ICP wants to answer). One strong post per job per week beats daily filler.

What LinkedIn posts get the most engagement?

Posts that earn dwell time and substantive comments: first-person stories with specifics, numbered lists worth saving, contrarian takes with reasoning, and documents that teach. Format matters less than whether the first two lines make someone stop scrolling.

How do I come up with LinkedIn content ideas?

Stop generating and start capturing: keep a running note of opinions you defend in sales calls, numbers that surprised you, decisions you're wrestling with, and questions customers ask. Every one of those is a post. The ideas in this article give you 25 starting slots.

How often should a founder post on LinkedIn?

Three to five times a week, sustained. Consistency trains both the algorithm and your audience; intensity followed by silence resets both.

Sources

  • Invisible Keyboard, The B2B Video Reality Check — analysis of 1,167 organic LinkedIn posts from 57 B2B software companies.
  • Invisible Keyboard, How OpenAI shows up on LinkedIn — a 90-day read on employee content at the category leader.
  • LinkedIn creator guidance on feed distribution and engagement (linkedin.com/help).

Audience report

Who are your company's real influencers?

Most B2B teams have three or four people whose posts already outperform the company page — and no idea who they are. Invisible Reach scans your team's LinkedIn footprint and shows you exactly where your untapped reach lives.

One-time $99 report. No recurring fees, no sales follow-up.