The HubSpot alternative you own: your CRM, shaped to how you sell, with no seats to count.
Your contacts, companies, deals and their history in one place you own, with the stages and rules your team actually uses. Your agents qualify leads, update deals and answer questions about the pipeline, and you pay for usage, not seats. We do the whole move off HubSpot for you and run both side by side until every team has switched.
Every object counted in HubSpot and in your workspace, every night, until each team has switched. HubSpot is never written to.

Swipe the screen sideways to see all of it.
What the HubSpot alternative does
Your sales and marketing teams work on a CRM shaped to how you sell, not to a vendor's tiers. Everyone who needs it gets it without a seat licence, your agents keep leads and deals up to date, and the data is yours to take anywhere.
- Contacts come over with the history of every property, and our engineers bring companies, deals and lists with them.
- Your stages and rules, not a vendor's: a deal moves only through its own step, lost needs a reason, and won creates the client.
- Website forms send leads straight in, and each new lead reaches the team by email and in its Telegram chat.
- Your agents work the same records: they qualify and enrich leads and answer pipeline questions as the person asking.
- Newsletters and campaigns go to audiences built from the same contacts, sent through Resend or the email service you choose.
- No seats: everyone who needs the CRM gets it, and you pay for what runs.
- You own it: your own database, direct API access with no limit on calls, and full agent access within the roles you give.
What it covers
Your pipeline, your stages
Leads, deals, companies, contacts and clients with the fields and stages your team actually uses. Change a rule by describing it to your agent and deploying, not by fighting a settings page.
Moved over with its history →
Your contacts come over with the history of every property, and companies, deals and lists with the history HubSpot keeps, checked with you in the pilot. Both CRMs run side by side until each team switches.
Lead intake and alerts
Website forms send leads straight in. Each new lead is emailed to the team and posted to its Telegram chat, and the post updates when someone takes it.
Marketing on the same contacts →
Newsletters and campaigns to audiences built from the same contacts, with consent per topic, sent through Resend or the email service you choose.
Your agents work with all your sales data →
Every contact, company and deal is open to your agents and your developers, with no limit on API calls, always within the caller's role.
The company agent →
Ask about leads and deals in Telegram. It answers as the member asking, with that member's permissions.
Every HubSpot concept, and where it lives in your workspace
For your engineers: every HubSpot concept and where it lives once you have moved.
| In HubSpot | In your workspace | What to know |
|---|---|---|
| Contacts | contact entity with your properties | Loaded with the history of every property |
| Companies | company entity with your properties | Loaded through migration-scoped access or exports, with the history HubSpot keeps |
| Deals and pipelines | deal with your stages, moved only through its moveStage action | Loaded like companies; lost needs a reason, won creates the client |
| Properties and custom objects | Typed properties and your own entities | Named as your team names them |
| Forms | Your website's forms, submitting leads through an API key | The key can submit and read nothing else |
| Lists | Audiences as definitions over your contacts | Always current, never a stale export |
| Workflows | Workflows in code, and rules inside actions | Started on a schedule, from the app or from another workflow |
| Marketing emails | Campaigns sent through Resend or the email service you choose | Consent checked on every send |
| Lead scoring | Leads graded A to D against standards you write | With the reason, in the sales team's own app |
| Reports and dashboards | Pages in your own app and SQL models in your warehouse | Definitions in code |
| Users and seats | Members with roles | No seats; you pay for usage |
What SegmentStream does not do
- A built-in phone dialler, call recording or meeting scheduler. Keep the tools you use for those, or connect them through their APIs.
- A drag-and-drop email or landing-page editor. Templates live in code or in your email provider.
- Its own mail servers. Email goes out through Resend or the email service you choose, on your domain.
How a migration from HubSpot works
We do every step for you, or your team does it with its own agent and our engineers on call. HubSpot keeps running until the last team has switched.
- 01
Model how you sell
Your stages, fields, rules and roles are written with your sales and marketing leads, as a pull request you can read before anything moves.
- 02
Bring your data over with its history
Contacts load with the history of every property, and companies, deals and lists with the history HubSpot keeps. Nothing in HubSpot is changed.
- 03
Point your forms at your workspace
Website forms send leads straight in, and can submit nothing but leads. During the side-by-side run both CRMs receive them.
- 04
Rebuild the views your teams rely on
The pipeline by stage, the lead inbox, the client list and your reports become pages in your own app, compared with HubSpot's numbers side by side.
- 05
Move marketing when it is ready
Lists become audiences over your contacts with consent per topic, and newsletters send through Resend or the email service you choose.
- 06
Switch team by team
Each team switches when its views match. HubSpot stays until your contract says otherwise, and nothing is switched off before that.
Moving off HubSpot? We do the whole move for you.
Our engineers model your stages and rules with your sales and marketing leads, bring your contacts, companies and deals over with the history HubSpot keeps, rebuild the views your teams rely on, and run both CRMs side by side until every team has switched. It starts with a fixed-scope pilot.
Nothing switches until the numbers match.
Both systems run side by side. Every number your teams rely on is compared, and every difference is explained before anything is turned off.
| Metric · Sept | HubSpot | Workspace | Status |
|---|---|---|---|
| Open deals | 214 | 214 | match |
| Pipeline value | £4,120,500 | £4,051,500 | explained |
| Deals won | 37 | 37 | match |
| Contacts | 18,406 | 18,406 | match |
| New leads | 1,408 | 1,408 | match |
Built from typed blocks
No new product to buy: the blocks below, written by an agent into your workspace's repository and deployed with one command.
None required.
$ segmentstream deploy
Every block ships together from one git repository your company owns. SegmentStream runs it.
- HubSpot Sales Hub
- HubSpot lists and marketing emails
- HubSpot reports
HubSpot keeps running while you move. Contacts come over with the history of every property, companies and deals with them, and your forms send leads to both. Each view your teams rely on is rebuilt and compared with HubSpot's numbers, and each team switches when its views match. We do the whole move for you if you want: see the offer below.
Moving off HubSpot? We do the whole move for you.
Our engineers model your stages and rules with your sales and marketing leads, bring your contacts, companies and deals over with the history HubSpot keeps, rebuild the views your teams rely on, and run both CRMs side by side until every team has switched. It starts with a fixed-scope pilot.
Enterprise, with our engineers
Our engineers model your stages and rules with your sales and marketing leads, bring your contacts, companies and deals over from HubSpot with the history HubSpot keeps, rebuild the views your teams rely on, and run both CRMs side by side until every team has switched.
Self-serve, with your own agent
Connect HubSpot and tell your agent how you sell. It writes the entities, actions and roles, loads your records, and segmentstream deploy gives you the app, the API and the MCP tools.
Related solutions
Read more
Questions
Is SegmentStream Cloud a HubSpot alternative?
For the CRM and the marketing on top of it, yes: contacts, companies, deals, lists, forms and campaigns live in a workspace you own, shaped to how you sell, and your agents and your team work from the same records. It has no phone dialler, meeting scheduler or drag-and-drop editor; keep the tools you like for those.
Can we move off HubSpot without losing history?
Yes. Contacts come over with the history of every property, and companies, deals and lists with the history HubSpot keeps, checked with you in the pilot. Both run side by side until each team's views match, and nothing in HubSpot is switched off before that.
Will you do the HubSpot migration for us?
Yes. Our forward-deployed engineers do the whole move if you want it: your stages and rules, the import, your forms, the views your teams use and the side-by-side comparison, starting with a fixed-scope pilot. Request it on this page and your note goes to our founder, not a sales queue.
How is it different from configuring HubSpot?
Your stages, your fields and your rules. A deal moves only through its moveStage action, so a lost deal always has a reason and a won deal always creates the client. Change a rule by changing the action and deploying.
What happens to our marketing emails and lists?
Lists become audiences over your contacts, with consent per topic and the date and source of each opt-in. Campaigns go out through Resend or the email service you choose, on your own domain, and every send checks consent first.
What does it cost?
Usage: compute, storage, queries, app traffic, the company agent and AI evaluations. No seats and no feature gates, so you never pay per person or for a higher tier to unlock a feature.
How long does a HubSpot migration take?
Our engineers put the first version in your workspace in two weeks at a fixed price, usually the pipeline, the lead inbox and your forms first. Each team switches when its views match HubSpot's.
Who owns the code and the data?
You do. The code lives in a private git repository for your workspace; clone it with plain git, keep a copy on GitHub, take it with you. The database is yours, with no limit on API calls and full agent access within the roles you give. SegmentStream runs it.
Rather have it moved for you? Request a pilot.
Our engineers model your stages and rules with your sales and marketing leads, bring your contacts, companies and deals over from HubSpot with the history HubSpot keeps, rebuild the views your teams rely on, and run both CRMs side by side until every team has switched.
- One solution, on your data, in your own workspace
- First version live in two weeks
- Parity proven before anything is switched off
- Fixed scope and price, credited to your contract if you continue
Not ready for a pilot? Send the form anyway with your question. An engineer will reply, not a sales rep.
How the pilot worksYour company’s software, built by agents, owned by you.
$ segmentstream workspace create acme --region eu --subdomain acme
▸ Created workspace acme · database, warehouse and a private git repository
$ segmentstream workspace WORKSPACE-ID clone acme && cd acme
▸ your agent writes the five folders and runs the checks
$ git add -A && git commit -m "First version"
$ segmentstream deploy
▸ app, ontology API and MCP tools live for your invited members
Our engineers build the first version on your data in two weeks, at a fixed price.
Or join the waitlist for self-serve:
Self-serve opens to the waitlist first.