CRM
HubSpot
Create and update records, deals, tasks and notes in HubSpot, with activities logged as signals fire.
Integrations
Works inside the tools you already use
Access MarketSizer's subscription intelligence directly inside your CRM, outreach and email tools, and LinkedIn workflows. See which companies are in-market, their competitive context, and win probability without switching tabs.
No CRM connection required. The Chrome extension and the MarketSizer web app both work standalone, so your team can start using subscription intelligence today and connect tools whenever you are ready.
CRMs
Create and update records, deals, tasks and notes, and log activities in the CRM your reps already live in.
CRM
Pipedrive
Create and update deals, tasks and notes in Pipedrive, and log activities against timing-ready accounts.
CRM
Zoho CRM
Create and update records, deals, tasks and notes in Zoho CRM so reps prioritise the right accounts first.
Outreach & email
Turn in-market accounts into outreach the moment the signal fires.
Outbound
Instantly
Add prospects and leads from signal-flagged accounts straight into Instantly outreach flows.
Email
Brevo
Send email outreach and campaign-style communications to in-market accounts through Brevo.
Email
Gmail
Send one-to-one emails, follow-ups and outreach drafts from Gmail, grounded in the signal behind each account.
Meetings & team alerts
Book the meeting and tell the team while the signal is still fresh.
Scheduling
Google Calendar
Book and schedule demos, follow-ups and internal meetings directly from account workflows.
Team alerts
Slack
Notify the team with channel messages, handoffs and deal alerts when accounts go in-market.
Team alerts
Microsoft Teams
Send notifications and team updates into Microsoft Teams for Teams-based organisations.
Data ops, custom & developer
Push lists where you need them, build directly on MarketSizer, or wire it into the long tail of niche tools.
Data ops
Google Sheets
Create and update rows and push lists of records into Google Sheets for reporting and list cleanup.
Developer
Public API
Read and write accounts, signals, and Opportunity Scores through a documented REST API.
Developer
Webhooks
Stream signals, score changes, and account updates into your own systems in real time.
Data
CSV import / export
Bulk upload accounts and historic activity, or export enriched lists for use anywhere else.
Automation
n8n
Self-host or cloud-run n8n workflows that listen to MarketSizer events and trigger your stack.
Automation
Latenode
Mix MarketSizer signals with code, AI, and apps in Latenode for end-to-end GTM automation.
Automation
Zoho Flow
Connect MarketSizer to the Zoho ecosystem and beyond with no-code Zoho Flow automations.
Works alongside
No native connection yet - pair these tools with MarketSizer through CSV import and export, a shared CRM, or the Chrome extension side panel.
Prospecting
Apollo.io
Export signal-flagged accounts as CSV for Apollo lists, and keep MarketSizer context in the side panel while you work.
See how MarketSizer works with Apollo.ioData enrichment
Clay
Feed subscription-event signals into Clay tables via CSV or a shared CRM as one more enrichment input.
See how MarketSizer works with ClayCRM
Salesforce
Surface MarketSizer signals beside Salesforce records with the Chrome extension, and hand lists across via CSV.
Outbound
Lemlist
Hand in-market account lists to lemlist campaigns via CSV export.
Prospecting
Seamless.AI
Pair Seamless contact data with MarketSizer signals to focus outreach on accounts that are buying.
Ecommerce data
Charm.io
Layer Charm.io ecommerce signals onto MarketSizer accounts for deeper buyer context.
CRM
Freshworks CRM
Hand enriched account lists across to Freshworks via CSV import and export.
CRM
Attio
Bring MarketSizer account lists into Attio via CSV while keeping signal context in the extension.
Don't see your tool?
We're always adding integrations. Tell us what you need and our team will scope it with you, or use the public API, webhooks, or n8n, Latenode, and Zoho Flow to wire MarketSizer into anything else.
See it live
Find out who's evaluating in your market right now
before your competitors do.
30 minutes. No commitment. We'll show you the accounts actively evaluating in your market today.
No credit card · Tailored to your ICP · Live data, not a slide deck
Social & web
Capture buying signals from LinkedIn and the open web, then act on them where it matters.
LinkedIn Sales Navigator
See Opportunity Scores and competitive context on every account directly inside Sales Navigator.
LinkedIn company pages
Spot in-market companies straight from any LinkedIn company page with the Chrome extension.
Any company website
Open MarketSizer on any company website to see if they are in-market, who they buy from, and why.
Chrome extension
Surface MarketSizer scores and signals anywhere on the web with our one-click Chrome extension.