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Startup & Founders Network

For accelerators, founder circles, and startup programs — a private founders lounge, pitch feedback, office hours, an investor and resource library, and a wins board.

What you'll get

The starting structure that lands when you launch

7 spaces in 3 categories

  • Cohort
    Program AnnouncementsFounders LoungeFounder Chat
  • Build
    Pitch FeedbackOffice HoursWins & Raises
  • Resources
    Playbooks & TemplatesImage required

4 welcome posts · 3 pinned

  • Welcome in Program AnnouncementsPinned
  • How to get useful pitch feedback in Pitch FeedbackPinned
  • Share your wins in Wins & RaisesPinned
  • What stage are you at? in Founders LoungePoll
    • Idea / pre-product
    • Pre-revenue
    • Post-revenue, pre-seed
    • Seed and beyond

    Open for 30 days

13 features enabled

AI assistantMember approvalChatDiscussion boardsEmail marketingEventsInvite-only accessReactions & likesMedia galleryMember discoveryMentionsDirect messagingPolls

AI assistant, ready on day one

Your community launches with Founder Assistant already set up — this is how it greets new members.

Ask the network

Mentors, office hours, templates, and what other founders have shared.

How do I book office hours?Where are the fundraising templates?How do I get pitch feedback?Who can help with hiring?

Member onboarding

  • · Welcome message for new members
  • · 3 onboarding steps
  • · Member questionnaire (2 questions)
  • · Community rules

Founder networks die quietly, one cohort at a time

Every accelerator has one: a Slack workspace that was loud for the fortnight around demo day and has been a bot graveyard ever since. The failure is predictable. You put four hundred founders into one general room, and the only people who post are the ones with nothing at stake. The founder with a real question — my co-founder wants out, our biggest customer is about to churn, I don't understand this term sheet — will not ask it in front of four hundred strangers, several of whom are competitors and one of whom is on their cap table. So they DM the program manager instead, and the network you promised never forms.

The other thing that kills these communities is the cohort clock. Cohort N is loud because they're in the program. Cohort N-1 is polite. Cohort N-2 is gone — and gone with them is the only thing that made the network worth joining: someone who was exactly where you are eighteen months ago and can tell you what happened next. Founder value flows backwards through time. If your platform gives alumni no reason to still be there — a wins board they want to appear on, office hours they can now host rather than attend — then you are running a program, not a network, and it ends when the program does.

This template is shaped around both problems. Founders Lounge and Founder Chat are private, so the messy conversation has somewhere to go that isn't the program manager's inbox. Pitch Feedback is private too, and ships with a pinned post on how to ask for feedback that's usable — the difference between a deck dumped in a thread and a specific question with a specific ask. Office Hours runs as events with RSVPs, calendar sync, and automatic reminders, which is most of what makes mentors actually turn up. Playbooks & Templates gives the program's assets a permanent home instead of a Drive link that rots. Wins & Raises is public and members post to it — it's the space alumni keep coming back to, and it's the reason they're still reachable in year three.

Why the community you built went quiet

Nobody asks the real question in a big room

Founders are performing for competitors, investors, and future employers at all times. In an undivided community the honest question — the one about money, co-founders, or failure — gets asked privately or not at all, and the network's entire value proposition evaporates.

Alumni evaporate the week the program ends

The people worth talking to are the ones a year or two ahead, and they have no reason to log in once demo day is behind them. Unless something pulls them back — a win worth posting, a session worth hosting — every cohort you graduate is a cohort you lose.

Office hours run on manual chasing

Mentor slots get booked in a spreadsheet, reminded by hand, and half the founders no-show anyway. The program manager becomes a scheduling assistant, and the mentors who got stood up twice quietly stop replying to your emails.

Questions program operators ask

Yes. This template ships invite-only with approval required and a two-question application — what stage is your startup at, and what do you most need help with right now. Spaces can be public, private, or secret, so the Lounge, Pitch Feedback, and Founder Chat are private out of the box. If you want a private space per cohort, you create one and control access — the template's seven spaces are a starting structure, not a ceiling.

Honestly, not for everything. Mateflow has chat spaces and direct messages, but it is a community platform, not a work-chat tool — no dev integrations, no incident threads, none of the things a team uses Slack for hour to hour. What it replaces is the accelerator Slack: the one that was supposed to be a network and became noise. Some programs keep a small team Slack and move the community here. That's a reasonable outcome.

Yes, by putting them in spaces rather than in the whole community. Office Hours, Program Announcements, Wins & Raises, and Playbooks are public within the community; Founders Lounge, Pitch Feedback, and Founder Chat are private. So a mentor can be present where they're useful without ever seeing the space where a founder is talking about running out of runway.

The platform supports it — subscription plans on your own Stripe account, with spaces gated by access group. But this template ships configured for a free, invite-only program, because that's how most accelerators run. If you're running a paid founder circle rather than a cohort program, you'd turn on paid memberships and add your plans; it's a setup step, not a different product.

No. There is no deal pipeline, no cap-table tooling, no investor CRM, and no application-scoring workflow for your intake. The join questionnaire captures two answers at signup, and that's the extent of it. Programs run Mateflow as the community and keep Airtable, Affinity, or whatever they use for the program-management side. We'd rather say that up front than have you discover it in month two.

Starter, at $49/month — all seven spaces work there, including the private ones and the invite-only membership model. A first cohort can start on Free, which runs the same spaces for up to 100 members, with two access groups and one admin. Events are unlimited on every plan, so office hours and demo days aren't metered. Alumni-only or mentor-only sessions work by putting the event in a space gated to an alumni or mentor access group — two such groups fit on Free, five on Starter.

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