Is the Clean HubSpot sync one-way or two-way?
One-way. Clean pushes prospects, companies, lists, and column values into HubSpot. It does not read HubSpot records back into Clean, so changes made in HubSpot stay in HubSpot.
Integration
Push the prospects, lists, and columns you save in Clean into HubSpot, automatically. Every prospect arrives as a contact with its company, every saved list becomes a HubSpot list, and your team keeps working in the CRM it already runs.
Book a demoLast updated September 26, 2026
The short answer
Clean isn't a CRM: it finds prospects and syncs them into HubSpot or Attio, where your team keeps working. Clean's HubSpot integration is a one-way sync from Clean into HubSpot. Once a workspace connects its HubSpot account, every prospect Clean saves arrives as a contact associated with its company, every saved list becomes a HubSpot contact list, and every custom column becomes a contact property. Clean never deletes anything in HubSpot and never reads HubSpot data back.
Everything you save in Clean has a place in HubSpot. People become contacts, their employers become companies with the two associated, and the fields Clean holds on a prospect, such as name, job title, and work email, fill the matching HubSpot fields.
When you connect, Clean backfills every prospect, list, and column you already have. After that, saving a prospect in Clean pushes that prospect and its company within moments, and a regular check catches values that changed since the last run. You can also start a sync from the connection page at any time.
The sync only adds and updates. Clean does not delete contacts, companies, or lists in HubSpot, and it does not read HubSpot records back into Clean. If a contact with the same email already exists, Clean updates it instead of creating a second one, and if your team already set a contact's primary company, Clean leaves that choice alone.
Clean finds B2B prospects from real-world records of what companies actually do: government filings, trade and shipping records, fleet and safety records, company sites, and trade press, plus Clean's own datasets and licensed company data. It names the people at each company through licensed data providers, and the HubSpot sync puts them in front of your team without anyone retyping a record.
A workspace member connects HubSpot once for the whole team. Before HubSpot's consent screen, Clean lists what it will push, what it never does, and what happens on disconnect.
The HubSpot connection at a glance
| HubSpot | |
|---|---|
| Pushes | Every prospect and its company, every saved list as a HubSpot list, and every custom column as a contact property. Edits made in Clean follow. |
| Never | Deletes contacts, companies, or lists in HubSpot, or reads HubSpot back into Clean. |
| Shares with | The whole workspace: one connection, everyone's prospects. |
| On disconnect | Stops syncing and drops HubSpot access. Everything already in HubSpot stays there. |
One-way. Clean pushes prospects, companies, lists, and column values into HubSpot. It does not read HubSpot records back into Clean, so changes made in HubSpot stay in HubSpot.
Clean matches a prospect to an existing HubSpot contact by email and updates that contact rather than creating a new one. Companies are matched by domain. After the first sync, Clean keeps track of every record it created, so later updates land on the same contact and company.
Contacts, companies, the association between each contact and its company, contact lists, and contact properties for your Clean columns. Deals, tickets, notes, tasks, lifecycle stages, and custom objects are not part of the sync.
No. Clean never deletes contacts, companies, or lists in HubSpot. Removing a prospect from a Clean list removes only that contact's membership in the mirrored HubSpot list.
Syncing stops and Clean drops its HubSpot access for everyone in the workspace. Everything already in HubSpot stays there.
Everyone's. The connection belongs to the workspace, not to one member, so every prospect saved in the workspace syncs, whoever saved it.
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