Private beta · free for life

The headquarters for real work.

Named threads, markup and AI edits on the work itself, reminders that keep your week, and every calendar you own in one place. With a full AI office assistant that connects it all together.

How many people?

No account is created and nothing is charged. We email you once, when it’s ready.

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Mark up the work, not a message about the work
Annotate creatives, PDFs and designs in place. Anyone on the thread can answer on the artwork itself, whatever they do for a living.
Say it in a comment, or just make the change
Describe the change in a sentence and HQ produces the revision, posted back to the thread beside the original. Forty messages arguing about a colour becomes one picture.
Or hand it to your own LLM, prompt already written
Export the marked-up work with every note attached and the prompt composed for you. Your LLM of choice, your account, your workflow — the notes are coordinates and sentences, not pixels, so they travel.
Reminders you can set in one line
“Remind me to check market news every working day at 9:30.” That is the whole interaction — no form, no date picker, nothing to fill in. And a working day means your working days, read from your calendar rather than assumed.
Every calendar, in one calendar
Google, iCloud and CalDAV side by side and kept in sync, so what you see is what you actually have. Meetings arranged here are written back to all of them.
Guests are free. Permanently.
Clients and collaborators cost nothing to add, and never will. You pay for what you use — never for who you work with.

Coming 1 November

An assistant who answers her own email.

People email Daisy to book time with you. She reads the request, checks your calendar, proposes times, negotiates, and sends the invite. The meeting she books lands on every calendar you have connected at once — not one, and not later. Name her whatever you like.

Meet Daisy

Sunday 02:14 · from brian@bigc.com

“Any chance of 45 minutes with Chris next week? Tuesday or Wednesday ideally.”

Daisy · 02:20, six minutes later

“Tuesday 2:00 PM or Wednesday 10:30 AM both work. I have held both — say the word and I will send the invite.”

She introduces herself as an AI assistant in her first sentence, to everyone, every time.

What’s coming

Your own domain. Your own brand.
Run HQ at hq.yourcompany.com with your logo and your colours. Your internal conversations live under your own name, not ours. Make it your headquarters.