Now onboarding small businesses

You builtthe business.We’ll run it.

Mainstae is the AI teammate that answers customers, runs your marketing, sends invoices and keeps operations moving — so you can focus on the work only you can do.

Trusted by 200+ small businesses. No card, no contract.
9:41MAINSTAE
Waiting on you

4 things — 30 seconds

Inboxjust now
Reply drafted
“Can you take on a project next week?” → Yes, Tuesday works.
LinkedInjust now
Post ready
Case study — how we helped Acme cut onboarding by 40%
Billingjust now
Invoice sent
Northwind Co. — $2,480.00 · Due Friday
Mainstae handled 47 things today. Saved you ~3h 20m.
3h 20m
given back each day
+42%
more orders in month one
4 min
to set up
0
extra tools to learn
Your day

Same 24 hours. Different life.

Tap the toggle. See what changes when Mainstae is on your team.

  • 6:30 AM

    Wake up to 42 unread emails. Try to triage between meetings.

  • 10:00 AM

    Forget to follow up on that proposal. The lead goes cold.

  • 2:00 PM

    A client asks about an invoice. You’ll get to it tonight. Maybe.

  • 7:00 PM

    Wrap up the day. Open the laptop. Reconcile, chase payments, plan tomorrow.

  • 11:30 PM

    Bed. Tomorrow starts in 7 hours.

What it does

Six jobs off your plate. All at once.

Customers

Answers emails, DMs and calls

Sounds like you, keeps your voice. Escalates the tricky ones.

Marketing

Posts, campaigns and outreach

A weekly plan drafted from what’s working. You just approve.

Web presence

A site, booking and lead capture

Live in 4 minutes. Updates itself when your services or hours change.

Money

Invoices, reminders, reports

Sends, chases and books everything. You see one clean weekly summary.

Pipeline

Follows up so leads don’t go cold

Learns your sales rhythm. Nudges the right prospect at the right time.

You

One phone. One tap.

Everything Mainstae did today, everything it wants to do tomorrow.

The customers

Small businesses that got their time back.

“I stopped taking Mondays off because I couldn’t handle the admin. Mainstae just… did the admin.”
M
Maya
Loafwork Studio · Austin, TX
+38% weekday revenue
“My pipeline was dead for 8 months. Now it follows up on things I would’ve followed up on — I just approve.”
K
Kenji
Fold Consulting · Portland, OR
3x more replies
“I got my Sundays back. That’s the whole review. My Sundays.”
P
Priya
Saffron & Co. · Toronto, ON
3h 45m saved / day
How it feels

Four minutes today. Every day after.

01

Sign up on your phone

Answer 6 questions about the business. That’s the whole setup.

02

Watch it wake up

In minutes: a live site, first outreach drafted, inbox on autopilot.

03

Approve, one tap at a time

Everything it wants to do goes through you. You’re still the owner.

Questions

Everything you were going to ask.

  • Yes. Mainstae studies how you write, what you sell and how you talk to regulars. It drafts in your voice — and you can edit any of it in one tap.

Get back to the work
only you can do.

Free while you’re in the founding cohort. No card. No contract. 4 minutes to see it running your business.

Only 40 spots left this month.