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CRM

Attio to HubSpot integration — real-time, two-way sync

Keep Attio and HubSpot in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.

  • SOC 2 and 6 other compliance frameworks
  • POC with real engineers in minutes

Adopted by fast-scaling companies moving mission-critical data in real time

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Why teams connect Attio and HubSpot

Run Attio and HubSpot side by side with the same accounts and contacts in both, whether they serve different teams or one is replacing the other.

Connecting two CRMs like Attio and HubSpot keeps parallel go-to-market teams on one record of truth: Attio People and Companies stay matched to HubSpot Contacts and Companies, and Deals stay consistent across both pipelines. This is common during migrations or when marketing runs in HubSpot while sales runs in Attio.

Stacksync syncs People, Companies, Users, Deals in Attio with Line Item, Product, Ticket, Quote in HubSpot in real time and in both directions, with field-level mapping and matching on identifiers you choose. Update a record in either CRM and the other reflects it within seconds.

Common use cases

  • 01 Run a phased Attio-to-HubSpot (or reverse) migration with both systems live and consistent
  • 02 Let marketing segment HubSpot Contacts using attributes maintained on Attio People and Custom objects
  • 03 Reconcile HubSpot Line Items and Products against Deal data tracked in Attio
  • 04 Run a two-way dual-run when migrating to Attio from another CRM.

Common sync patterns

Two-way contact sync

Attio People and Companies mirror HubSpot Contacts and Companies with field-level mapping

Pipeline alignment

Attio Deals and HubSpot Deals stay in step so forecasts match regardless of which CRM a team works in

Ticket context for sellers

HubSpot Tickets surface on the corresponding Attio Company record

What you can sync between Attio and HubSpot

Representative objects on each side — any object or custom field can map to any target. Schemas are auto-detected; types are converted between the two systems.

Attio objects HubSpot objects How this pairing syncs
Companies Standard company object; matched to billing and product accounts in two-way syncs. Company Synced with incremental and full sync per the Stacksync docs. Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions.
Deals Pipeline records; read out for revenue reporting and written to from automation. Deal Synced with incremental and full sync per the Stacksync docs. Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions.
Workspaces Synced with incremental and full sync per the Stacksync docs. Line Item Synced with incremental and full sync per the Stacksync docs. Workspaces is specific to Attio and Line Item to HubSpot — each maps to any object or custom field on the other side.
Custom objects Workspace-defined objects that behave like standard ones in the API. Product Synced with incremental and full sync per the Stacksync docs. Custom objects is specific to Attio and Product to HubSpot — each maps to any object or custom field on the other side.
People Standard person object; synced with marketing tools and warehouse person tables. Ticket Synced with incremental and full sync per the Stacksync docs. People is specific to Attio and Ticket to HubSpot — each maps to any object or custom field on the other side.
Users Synced with incremental and full sync per the Stacksync docs. Quote Synced with incremental and full sync per the Stacksync docs. Users is specific to Attio and Quote to HubSpot — each maps to any object or custom field on the other side.

How changes propagate between Attio and HubSpot

Each direction of the sync is driven by what the source system can signal and what the destination accepts — detection, delivery, and expected latency below.

Attio HubSpot Sub-second propagation

DetectionAttio notifies Stacksync of record changes through webhook events. Webhooks on record and list-entry events, with polling as a fallback.

DeliveryEach detected change is written to HubSpot through its API, with automatic retries and rate-limit backoff.

HubSpot Attio Sub-second propagation

DetectionHubSpot pushes changes as they happen — webhook events backed by change data capture. Records: incremental near-real-time change tracking.

DeliveryEach detected change is written to Attio through its API, with automatic retries and rate-limit backoff.

Rate-limit considerations

  • Attio: Subject to the platform's published API rate limits.
  • HubSpot: Request limits vary by subscription tier and API type.
What ships with Attio ⇄ HubSpot

Connect Attio and HubSpot for flexible, real-time data sync.

Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Attio–HubSpot connection.

Real-time

Two-way sync

Changes in Attio or HubSpot instantly reflect in both systems. No stale data, no manual imports.

No-code + pro-code

Workflow automation

Trigger automated workflows whenever Attio or HubSpot data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.

At scale

Event queues

Handle millions of events per minute without losing a single Attio or HubSpot record.

Observability

Monitoring

Track your Attio ⇄ HubSpot sync health, view errors, and replay failed events in one click.

Trading partners

EDI

Transform legacy EDI complexity into simple database interactions between Attio and HubSpot.

How the Attio and HubSpot connectors work

Attio

Integration surface
REST API
Authentication
Guided in-app connection ("Attio CRM" connection created in a few clicks, "without any coding required"); the docs do not name the underlying auth mechanism (OAuth vs API key)
Change detection
Webhooks on record and list-entry events, with polling as a fallback
Capabilities
read · write · webhooks
Rate limits
Subject to the platform's published API rate limits.
Attio setup guide

HubSpot

Integration surface
REST API (CRM v3)
Authentication
OAuth (choose HubSpot account and authorize Stacksync); requires a HubSpot 'Super Admin' to grant access; optional "Grant access to sensitive fields" checkbox for sensitive/highly sensitive fields
Change detection
Records: incremental near-real-time change tracking. Associations: HubSpot has no native association CDC
Capabilities
read · write · CDC · webhooks
Rate limits
Request limits vary by subscription tier and API type.
HubSpot setup guide
How it works

How to connect Attio to HubSpot — three steps, no code

Configure and sync within minutes, no code. Whether you sync 50k or 100M+ records, Stacksync handles the queues, infra, and plumbing. Integrations are non-invasive and need zero setup on your systems.

  1. 01

    Connect your apps

    Authenticate Attio and HubSpot with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.

    • OAuth 2.0
    • SSH tunnel
    • VPC peering
    Attio connected
    HubSpot connected
    OAuth 2.0
    SSH tunnel
    SSL certificate
    VPC peering
  2. 02

    Choose tables

    Pick the Attio and HubSpot objects to sync — Stacksync auto-detects both schemas, including custom fields where the platform exposes them. Sync to existing tables, or let Stacksync create new ones with ideal data types.

    • Standard objects
    • Custom objects
    • Auto-schema
    objects · Attio ⇄ HubSpot
    Customers 12,480
    Sales Orders 8,213
    Invoices 5,902
    Items 1,344
  3. 03

    Map fields

    Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.

    • Auto-map
    • Type casting
    • Transforms
    Attio HubSpot
    Company company_name text
    Email email text
    Amount amount numeric
    Created created_at timestamp
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FAQ

Attio and HubSpot integration FAQ

SECURITY

Security teams trust Stacksync

As a data company, we understand the importance of keeping your data secure. Stacksync is built with security best practices to keep your data safe at every layer, and is DPF-certified for US, EU, UK and CH data transfers.

Learn more about security
SOC 2 Type II
ISO 27001
HIPAA BAA
GDPR
CCPA
CSA STAR
DPF US-EU-UK-CH
→ SECURITY WITH BENEFITS

SSO & SCIM

Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.

Alerts

Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.

Secure connection options

Securely connects to your systems with:

OAuth 2 SSH Tunnelling SSL certificates IP Whitelisting VPN gateway VPC peering and more

Related integrations

Every pair below is a real-time, two-way sync. Search all 560 integrations available for Attio and HubSpot.

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