outreach
How to Build a Pre-Event Attendee List From a Conference Telegram Chat
The conference group chat has 3,000 attendees you haven't met yet. Here's how to turn it into a working outreach list before you land.
The event starts in nine days. You've got a booth, a pitch, and zero idea who's actually attending. The organizer's "official Telegram chat" has 3,000 members sitting right there — and you're still planning to just show up and hope for good conversations.
That's the expensive way to do it. The attendee list already exists inside that group chat. You just have to extract it, filter it, and start conversations before the show floor opens — not after.
How many attendees can you realistically pull from a conference Telegram chat?
For a public conference group with an open member list, you can typically extract close to 100% of members — names, usernames, Telegram IDs, and activity data. For private groups where the member list is hidden, you'll usually get 20-30% of the total membership — specifically, the people who commented or sent a message in the group within the last 6 months. That 20-30% is still a real, usable prospect list, and it's skewed toward the most engaged attendees, which is exactly who you want to talk to first anyway.
Why the Telegram chat beats the official attendee list
Most conferences don't hand out an attendee spreadsheet — that's guarded data. But the Telegram chat is public (or semi-public) by design, and people join it voluntarily to network. That means:
You get real Telegram handles, not just an email that bounces or gets ignored.
Active chatters have already signaled intent — they're there to talk business, not just badge-scan.
You can see who's asking about specific topics (partnerships, demos, side meetings) and target those threads directly.
You reach people before the event starts, when their calendar is still open.
This is the same logic covered in how to schedule back-to-back booth meetings at a crypto conference — the meetings get booked in the days before the show, not during it.
Step-by-step: turning the group chat into a working list
Here's the actual workflow, in order:
Join the official conference Telegram group as early as possible — the sooner you're in, the more message history you can pull from if the member list is private.
Check whether the member list is public or private. Public lists give you near-complete extraction. Private groups only surface active commenters.
Run the group through a parser to extract usernames, Telegram IDs, profile names, gender, and last-seen activity into a spreadsheet, split into tabs for all users, Telegram Premium users, and admins.
Filter for signal, not just volume. Sort by recent activity and Premium status — Premium accounts and recent commenters tend to be more engaged, higher-intent attendees.
Cross-reference with speaker and sponsor lists if the event publishes them, so you know which names in your export are worth prioritizing. This pairs well with mapping sponsor relationships before a Web3 conference.
Load the list into your outreach tool and start a short pre-event sequence — not a pitch, just a reason to meet in person.
What if you're not an admin of the group?
You don't need to be. If you're a legitimate member of the group — which you are, once you join the conference chat — you can extract the visible member data using a scraper that works from your own Telegram session. CRMChat's Telegram Group Parser extracts complete member lists — usernames, names, user IDs, and profile data — from any group you're part of, exporting to a clean spreadsheet in seconds using a free Chrome extension, no admin access required.
If you run your own event or community and want to reach out to your own channel members, that's a different path: as the channel admin, you add a parsing bot that collects your channel's member data and exports it as a CSV ready for outreach.
What to do once you have the list
A spreadsheet of names isn't an outreach plan. Before you send a single message:
Segment by role — investors, media, competitors, potential partners all get different messages.
Add context per contact — note if they asked a question in the group, mentioned a company, or engaged with a specific topic. Reference it in your opener.
Set a send cadence — spread messages over several days, not all in one afternoon, to avoid tripping spam flags on your account.
Track replies in one place so you're not juggling DMs across five chats when you're standing at your booth on day one.
CRMChat lets you import parsed contacts directly into its CRM and launch personalized Telegram outreach sequences without switching tools, so the same list you pulled from the conference chat becomes your booked-meeting pipeline by the time you land. For Web3 events specifically, this has translated into measurable increases in event-to-partnership conversion for teams that shift from collecting business cards to systematic pre-event outreach — see CRMChat's case studies for details.
If you're doing this for a fundraising or partnership push rather than general networking, it's worth pairing this list-building step with more targeted decision-maker research — parsing the group gets you the crowd, but a direct registry-to-Telegram lookup gets you the specific person who signs off on a deal.
Common mistakes that shrink your list before you even start
Joining too late. If you join the chat two days before the event, you miss months of message history that a private-group scrape depends on.
Blasting the whole list at once. New or unwarmed Telegram accounts sending 100+ cold messages in a day get flagged — see why new Telegram accounts get shadow restricted during mass outreach.
Ignoring account warmup. If your account is brand new, warm it up before you run a bulk outreach push — CRMChat's account warmup handles this automatically.
Skipping the follow-up. Most replies come on the second or third touch, not the first.
Get the list right and the event stops being a lottery. You walk in with a queue of scheduled meetings instead of a stack of business cards you'll never look at again.
