Works like an agent.
Talks like a colleague.
Dossier is an AI coworker in Slack that helps you get more done.
@Dossier brief me on Acme Corp before my 10 AM demo with their VP of Sales. Any buying signals this week?
“David — saw your note on rep research time vs selling hours. Sarah Lin on our team mentioned you built out Segment's SDR playbook in '22. We automated that exact pre-call briefing workflow inside Slack...”
One day with Dossier.
It runs in your tools around the clock. You hear from it when there is something to act on.
Briefed before you open a tab.
Today's calls, who you are meeting, what changed since you last spoke, and the news that matters, waiting in Slack.
Meeting with Marcus Ray. News: Announced new corporate treasury product 2 days ago. Attio shows prior pilot request stalled due to lack of Slack integration.
Follow-up call. Granola transcript notes they loved the warm-intro feature; requested security tier verification.
“I noticed you manually research and enrich every new attendee registered for your upcoming webinar via LinkedIn before emailing them. Would you like me to automate this?”
It notices what repeats and offers to take it.
Dossier learns how you like things done and spots work that should run itself. It asks before it automates anything, and it only sees the tools you connect.
Finished work, ready to approve.
Follow-up email drafted, CRM fields filled, next step written. Nothing goes out until you say so.
“Hi Marcus — great speaking today. As discussed, I've attached our CASA Tier 2 security whitepaper and included answers to the custom MCP question your team had. Next step: technical review on Thursday...”
“I've already recommended Dossier to four other teams. It's that powerful.”
It reaches across your tools and hard-to-reach corners of the web.
HubSpot
Attio
Notion
Linear
GitHub
Google Sheets
Granola
Monday.com
Gmail
Hunter.io
Google CalendarStart with agents other teams are using.
Pick a starting point. Dossier runs it and learns how your team likes things done. If you sell for a living, start with the AI sales assistant; if you run the systems behind the team, see Dossier for GTM Ops.
Adds a researched opener to every message — no copy-pasting.
Finds the shortest path to any prospect through people you know.
Walks you into every call briefed, not scrambling.
Flags ICP posts the moment a solvable problem gets named.
Catches new decision-makers before they've locked in vendors.
Hands you a prioritized hit-list before the badge scramble starts.
Or describe what you need. Dossier builds it.
Your processes and memory. Any model. No lock-in.
Dossier gives you the best available intelligence while you keep full ownership and portability of your processes, learned recipes, and agent behaviors.
Portable by design
Your automations, preferences, exceptions, and institutional recipes live in Dossier. Export them. Version them. Take them with you when you switch models or add new ones. No rebuilds.
{
"agent": "outreach-custom-listener",
"triggers": ["role_change", "funding_announcement"],
"rules": {
"filter_icp": "VP Sales OR Head of GTM",
"require_crm_dedupe": true,
"slack_channel": "#gtm-sales-briefings"
},
"model_routing": "claude-3-5-sonnet-latest",
"portable": true
}Model-agnostic, aligned with you
Dossier sits between your work and the frontier models. We have no incentive to lock you into one provider; our job is to make your way of working more powerful and scalable.
With great power comes great responsibility.
Data privacy and security are the top priority.