If you plan events at a startup, the brief rarely arrives as a brief. It arrives as a Slack message, usually late on a Friday, and it is usually you (the EA, the office manager, the chief of staff) who picks it up.
The good news is that event planning software has caught up with that reality. Comtev connects to your Slack workspace, so the date poll, the guest list, the budget approval and the updates all happen where your company already talks. You write one brief, the AI agent gathers venue, vendor and travel quotes for you, and the decisions come back to Slack. For most startup events, that removes the part of the job that eats your week: the chasing.
This guide walks through how that works in practice, and where a Slack-first tool fits alongside the heavyweight platforms.
Why startup events are a different job
Enterprise event platforms were built for companies with a dedicated events team, a procurement process and an annual contract. Startups have none of that. What they have is one person planning the launch party on top of a full-time job, a budget agreed in a chat thread, and a team that ignores anything which is not in Slack.
Consumer party apps sit at the other end. They handle a birthday well, but they have no idea what to do with a budget sign-off, a vendor quote or a guest list that spans three teams and a handful of contractors.
The gap in the middle is real: software that takes company events seriously without assuming you have a department behind you.
What the planning actually looks like
Here is the honest version of how a startup event comes together on Comtev.
You write the brief once. Something like: a 60-person launch party in London in three weeks, around £8,000, food and drinks, a short founder talk. From that one brief, Comtev's AI agent runs the groundwork in parallel. It shortlists venues with capacity checks and watch-outs, contacts suppliers for quotes, and prices any travel per attendee.
Vendors get chased so you don't have to. The agent reaches suppliers over WhatsApp, SMS or email, and it can place a phone call when a supplier goes quiet. It reads the replies, asks for better rates where there is room, and lines the offers up side by side so you can compare like with like.
The team stays in Slack. This is the part startup EAs tend to care about most, so here is precisely what Comtev does inside Slack today:
- Date polls to settle on a day without a reply-all thread.
- Guest collection by DM. Add your co-organisers as collaborators and Comtev messages them directly (Slack DM for colleagues, WhatsApp for people outside your workspace, no app install needed), collects their guest names, chases the stragglers politely, and flags duplicates for review.
- Channel import to pull the members of, say, #all-hands straight into the guest list.
- RSVP nudges by DM, so headcount firms up without you posting reminders.
- Approvals in Slack. When money needs sign-off, the request goes to a named approver with a spending ceiling. Nothing is charged until they approve. Your founder can approve the venue deposit from their phone between meetings.
- Team updates and a leadership summary when you want to keep a channel informed without writing the update yourself.
Finance gets one number. Every quote and travel cost rolls into a single live budget, and you can freeze it into a versioned proposal with a shareable link. When your CEO asks "what is this costing us", you send the link.
On the day, guests check in with digital e-passes and you watch attendance live, rather than working from a printout.
Where the big platforms still make sense
Honesty helps here. If you are running a 2,000-person user conference with sponsors, paid tickets and a session agenda, a platform like Cvent or Bizzabo is built for that scale, and the onboarding effort is justified. Eventbrite remains the sensible choice when you are selling tickets to the public.
Comtev is built for the events that make up a startup's actual calendar: launch parties, offsites, all-hands, customer dinners, holiday parties. The recurring, internal, "make it nice and keep it under budget" events that one person runs. If that is your calendar, you can see how it handles a full offsite in our UK offsite planning guide.
What it costs
Comtev is £250 per event, with every planning tool included. No annual contract and no procurement call, which tends to suit how startups buy. Teams running events year-round can look at the Enterprise plan.
For a sense of what the whole event should cost, not just the software, our UK corporate event cost guide collects the real benchmark figures.
FAQs
Does Comtev work with Microsoft Teams?
Not yet. Slack and WhatsApp are the live channels today, with email and SMS for guest messaging. If your company is Teams-first, the web app still does everything; you would simply miss the in-chat conveniences.
Do my co-organisers need to install anything?
No. Colleagues contribute guest names through a Slack DM, and people outside your workspace (a founder's assistant, an agency contact) do the same over WhatsApp. Comtev collects the details, follows up with anyone who has not replied, and asks you to review likely duplicates.
How does budget approval work when the CFO is not the planner?
You name an approver and set a ceiling. When a booking needs money, they get the request in Slack and in their Comtev tasks, with 24 hours to act before it expires. Nothing is charged until they approve, so the planner never has to carry the spending decision alone.
Can it plan a small dinner as well as a big party?
Yes. The brief sets the scale. A 12-person investor dinner gets a private-room shortlist and a small budget; a 300-person party gets the full vendor and travel treatment. The workflow is the same either way.
Is there a free plan?
No. Pricing is £250 per event with everything included, which is usually less than the cost of the hours the chasing would have taken. Details are on the pricing page.
The quiet version of event planning
The point of doing this from Slack is not novelty. It is that the plan lives where the conversation already happens, so nothing needs copying between tools and nobody needs reminding to check a dashboard. You write the brief, the agent does the legwork, the approvals and headcount sort themselves out in the channel, and you get your week back.
When the next Friday-afternoon "we should celebrate this properly" message lands, you will have a plan by Monday. Start at Comtev.com.