CMOsOnly

Members only · No vendors · Verified seats

Finally, social media
worth opening.

This is not a networking group. It is a closed room for the people who own a number they only half control — and are first out of the building when it misses.

Applications are reviewed by a person. Most are declined. That is the point.

In the room

  • Sitting CMOs and chief growth officers
  • Deputy CMOs, VPs of Marketing and heads of growth carrying real accountability
  • Marketing leaders who own the budget, the team and the forecast
  • People whose name is on the number

Not in the room

  • Agencies, martech vendors, resellers — at any seniority
  • Recruiters and search firms
  • Press, analysts, researchers looking for quotes
  • Consultants and fractional CMOs selling services
  • Investors and founders "exploring the space"

There is no tier, no upgrade, no sponsor package that changes this list. A great many people will be annoyed by it. They are welcome to be annoyed somewhere else.

Why a closed room

It is the shortest tenure in the C-suite, and it is judged on numbers no marketer fully controls — pipeline someone else closes, attribution nobody actually believes, and a brand that takes three years to move and one quarter to be blamed for.

Meanwhile every forum that claims to serve you is paid for by someone selling to you. The dinner is sponsored. The awards are entered by the agencies that win them. The community is a martech pipeline with a Slack workspace.

You cannot be honest about what is not working in a room where somebody is selling the fix.

So: no one is selling anything here, and nothing said here leaves.

What it is actually for

The call before the board meeting

Growth is flat, the forecast is not going to hold, and you need to say so out loud to somebody first — someone who has sat in that meeting rather than written a post about it.

What the agency actually delivered

Against what the pitch promised. Whether the team you met stayed on the account. Whether they renewed, and what it really cost.

Numbers that are real

CAC, payback, pipeline coverage, share of budget to brand — and what a demand-gen lead is actually paid in your market. From peers, not from a report a vendor commissioned.

Which martech is shelfware

From people who bought it, implemented it, defended it internally, and quietly stopped using it fourteen months later.

The thing you can't say publicly

That the rebrand is not landing. That the category you invented does not exist. That the number was never achievable and everyone signed up to it anyway.

An exit route

Roles move through peers long before they reach a search firm. No recruiters in the room means the conversation stays between people who are actually hiring and actually leaving.

The charter

Six rules. They are short because they are not negotiable, and numbered because you agree to them in order when you join.

  1. Nothing leaves the room

    Chatham House by default, and stricter in practice: no screenshots, no forwarding, no "a friend told me". Attribution outside the room is the one thing that ends a membership immediately.

  2. Nobody sells

    No pitches, no demos, no "happy to intro you to my friend at". This includes the polite version, the helpful version, and the version disguised as a recommendation.

  3. Verified seat, or no seat

    Every member is a named, verified human holding a real marketing leadership role. No anonymous accounts, no shared logins, no delegates attending on someone's behalf.

  4. Your seat is yours, not your employer's

    Membership follows you when you move. It is not a corporate subscription, it cannot be transferred to your successor, and your company does not get a login because it paid.

  5. Contribute or lapse

    A room of readers is worthless. Members who take for a year and give nothing are asked to leave, without hard feelings — the value here is other people answering, so answering is the subscription.

  6. One strike on trust

    Ordinary disagreement is fine and encouraged. Breaching confidence, selling under cover, or misrepresenting your role is a single removal with no appeal.

How vetting works

Three steps, done by a person. Expect it to take days rather than minutes.

  1. 01

    You apply

    The form below. Work email, real name, actual title. Two minutes if you are eligible, and awkward if you are not.

  2. 02

    We verify the seat

    Your role is confirmed independently — public record, your work domain, and where it is not obvious, a short call or a word from an existing member. We are checking the seat, not auditing you.

  3. 03

    You are invited, or you are not

    A decision either way, in writing. A decline is usually about fit or verification, rarely about you, and never explained at length — which is itself a courtesy.

Apply

Everything here is used to assess your application and nothing else. No marketing list, no data sale, no third parties.

Must be your organisation's domain. Personal addresses are declined automatically.

Optional, but it speeds verification up considerably.

A few sentences. What you are deep in right now, or what you would want to ask on day one. This is the part that is actually read.

Trouble with the form? Write to apply@cmosonly.com with the same details.

Questions people actually ask

I'm the CMO of a martech company. Am I out?

No. The bar is selling, not your employer's product line. You carry the same number and the same tenure risk as everyone else in the room. If you use the room to generate pipeline, you are removed under rule two — the same as anyone.

I run an agency.

Then no. This is the one that is not case by case: an agency principal is in the business of selling marketing services to the people in this room, and their presence changes what everyone else is willing to say.

I'm a fractional CMO.

Case by case, and the question is where the accountability sits. If you own the number for an organisation under a long-term engagement, apply and say so plainly. If your revenue comes from selling advisory work, this is not the room for you.

What does it cost?

Membership terms are set out in the invitation, before you are asked to commit to anything. Nobody is charged to apply, and there is no sponsor money — which means members fund it, which is exactly why nobody sells here.

Is it anonymous?

The opposite. Every member is verified and named to the others — candour depends on knowing who is in the room. Confidentiality applies outward, not inward.

What happens to what I put in this form?

It is stored to assess your application and nothing else. It is not sold, not shared, and not fed to a marketing platform — which would be a poor start. This site sets no cookies, loads no third-party fonts or scripts, and runs no analytics.