Attio vs HubSpot: which CRM fits a sales team that wants to build its own?

One is a young, configurable CRM built around a flexible data model. The other is a nine hub platform with a much longer track record. Here is what each one's own documents say, feature by feature.

Toni MedicSalestructSeptember 30, 202616 min readCRM & Pipeline

The short version

An open, minimal workbench of connected data tables on one side, next to a dense, multi-building campus of pre-built rooms on the other, representing a configurable CRM against a full platform — Attio's model: a small set of open, connected tables a team wires together itself. HubSpot's model: a much larger, pre-built structure with more of the work already done.

Attio and HubSpot answer different questions. Attio asks how flexible your data model needs to be. HubSpot asks how much of your go-to-market stack you want running on one login. Both are real CRMs with real sales tools, and each one's own pricing page, help center and developer docs say plainly where it stops.

The short version

Attio's paid plans run €31 to €74 a seat a month on annual billing, with no onboarding fee. HubSpot's Sales Hub runs €7 (shown, list €20) to €150 a seat, and Professional and Enterprise add a required one-time onboarding fee of €1,470 or €3,420.
Attio's core is a small number of connected objects (up to 12 on Pro, unlimited on Enterprise) a team configures itself. HubSpot ships a much larger pre-built structure across nine hubs, with custom objects reserved for Enterprise.
Attio signs its webhooks with HMAC-SHA256 and publishes the full retry policy: up to 10 attempts over about 3 days, a 5-second delivery timeout, then the webhook is marked degraded and you get an email. HubSpot signs its webhooks too, but doesn't publish a retry policy.
Attio states directly that its Sequences feature is not built for cold or high-volume outreach, and that it is "not an email service provider," sending everything through your own synced Gmail or Microsoft account. HubSpot's sequences run up to 500 to 1,000 emails per user per day depending on plan, with LinkedIn actions requiring a separate Sales Navigator subscription.
HubSpot is the more mature product by every public signal available: founded 2006, 9,000+ employees, 306,000 customers, "over 2,000" listed integrations. Attio doesn't publish a founding date or team size; its own funding announcements put it at $116 million raised across a Seed, Series A, and a $52 million Series B led by GV.

How this comparison was made

Every price, limit and feature below comes from Attio's or HubSpot's own pricing page, help center, developer documentation, or app store listing, read directly on 29 September 2026 and linked in the Sources section.
Where a number wasn't published (Attio's team size, its total integration count, HubSpot's webhook retry policy), the table says so rather than guessing.
Prices shown are in EUR, the currency both sites displayed to a visitor browsing from the EU, and exclude VAT. Figures change; if a number here disagrees with the vendor's page on the day you read it, the vendor's page is right.
Neither product was tested inside a live account for this piece. Everything below is what each company publishes about its own product.
Attio and HubSpot logos are the property of their respective owners and are shown here for identification only. Salestruct has no commercial relationship with either company.

What is the difference between Attio and HubSpot?

Attio is built around a small, generic data model: Objects, Records, Attributes, Lists and Entries. A team decides what an "object" is (a company, a deal, an investor, a candidate) and connects them with custom attributes, rather than working inside a fixed set of sales-shaped fields. Attio doesn't publish a founding year or headcount on its own site (its /manifesto and /company pages return nothing), but its about page confirms "190+ team members" across "London, and across Europe and the US," and its own blog records a funding history from a Seed round in November 2021 through a $52 million Series B led by GV, for $116 million raised to date.

HubSpot describes itself as founded in 2006, with 9,000+ employees and 306,000 customers, and sells nine connected "hubs" (Marketing, Sales, Service, Content, Operations, Commerce, and Data among them) that share one contact and company database. The comparison in this post is scoped to the Sales Hub, since that's the product a sales team would actually put next to Attio, but several rows below note where a capability actually lives in a different hub.

The practical difference: Attio hands you a smaller number of building blocks and expects you to assemble them. HubSpot hands you a much larger, mostly pre-built structure, and charges more to unlock the parts of it that behave like Attio's flexibility (custom objects, advanced permissions, deeper automation).

What do Attio and HubSpot cost per seat?

Tiers above are paired by what each one actually includes, not by list price: Attio Plus sits closer to HubSpot Starter (small teams, basic sending), Attio Pro sits against HubSpot Professional (sequences or workflows, permissions, advanced reporting), and both Enterprise tiers are the security-and-scale tier. HubSpot's discounted €7 Starter price has no published end date or renewal term on its own pricing page, so the €20 list price is the safer number to plan around.

Three pricing details the comparison pages don't usually mention:

Attio charges no onboarding fee on any published tier. HubSpot requires one on Professional and Enterprise, and doesn't offer a way to waive it on its pricing page.
Attio's AI and enrichment usage is metered by credits at both the seat and workspace level, and extra workspace credits are sold in fixed blocks (5,000 credits for €70/month on annual billing, up to 50,000 for €410/month). HubSpot's credits are pooled per account with no published per-block price beyond the flat $0.010 rate.
Attio's Free plan caps at 3 seats; HubSpot's caps at 2. Neither is built for a team past a handful of people.

Two towers of stacked modules under a rising price line, one tower topped by a small extra block labelled as a one-time fee, representing HubSpot's required onboarding charge that the other tower does not carry — The gap that shows up once onboarding is added in: HubSpot's mid and top tiers carry a required, one-time fee that Attio's pricing page doesn't have an equivalent for.

Which one has the more flexible data model?

The difference in philosophy is clearest here. Attio treats custom objects as a Pro-and-above feature that most teams can reach without an enterprise contract, capped at 12 combined objects on Pro and unlimited on Enterprise. HubSpot keeps custom objects behind Enterprise entirely, so a HubSpot team modeling anything beyond contacts, companies, deals and tickets (a piece of equipment, a partner account, a property listing) needs the top tier no matter its size.

Neither company publishes a side-by-side custom-field cap the way Pipedrive does, so a team that needs a specific number should check both vendors' current attribute limits directly before committing to a year.

Which one is easier to run, day to day?

The app store numbers say something a features table can't: HubSpot's mobile app has been rated by roughly 15,700 iOS users and installed over a million times on Android, against Attio's 28 iOS ratings and 5,000-plus Android installs. That's not a verdict on either app's quality, it's a scale gap that comes from HubSpot having been on the market since 2006 against Attio's much shorter public history, and it matters if your reps live on their phone between meetings.

Which one automates more, and where does that automation stop?

The most useful line in Attio's own documentation, for the audience this post is written for, is a plain statement of what Sequences are not for: "Cold or high volume sales outreach" is listed as an example of a use case where Attio's own sequence feature "should not be used," alongside "Email marketing." Attio isn't an email service provider, and every sequence email goes out through the seat holder's own synced Gmail or Microsoft account, so the practical sending ceiling is whatever that mailbox provider allows, not a number Attio publishes. HubSpot, by contrast, prints its own per-user daily sending caps (500 on Professional, 1,000 on Enterprise) directly on its pricing page.

If your team's automation need is "run our outbound sequences inside the CRM," that's a HubSpot column, not an Attio one, on the evidence both companies publish about their own products.

How do the two handle webhooks?

Attio's own developer documentation is unusually specific here, and it's worth quoting rather than paraphrasing: a failed delivery is retried "up to 10 times with an exponential back-off, which will happen over approximately 3 days in total; after which, the webhook will be marked as degraded and we'll send you an email." HubSpot signs its webhook payloads too, but its published developer docs for this review didn't include an equivalent retry-count or timeout figure, so that row is marked not published rather than assumed to be the same or absent.

A single message being retried across a rising staircase of attempts toward a distant server, with a warning marker on the final step to represent a webhook delivery being marked degraded after its retries are exhausted — Attio's own documentation states a specific retry count, a 3-day window and a named degraded state before it gives up on a failed delivery. That level of published detail is the reason this row favors Attio, whatever else the rest of the platform is missing.

Which API has the higher ceiling?

Attio's rate limit is the same for every customer regardless of plan: 100 reads and 25 writes per second, plus a separate score-based limit on its List records and List entries endpoints that sums complexity across a 10-second sliding window. HubSpot ties its limit to the subscription tier, which means a Free or Starter HubSpot integration hits its ceiling sooner than a Professional or Enterprise one, and HubSpot sells a paid add-on (an extra 1,000,000 calls a day for €490 a month, per its own price calculator) to raise it further. Neither structure is objectively better; a small team on Attio's flat limit gets more headroom than a small team on HubSpot's entry-tier limit, while a large HubSpot Enterprise account can buy its way past both.

Which one connects to more of the stack?

This is the clearest gap in the comparison. HubSpot names its integration count on its own pricing page ("over 2,000") and ships a native LinkedIn Sales Navigator connection from Professional up. Attio doesn't publish a total integration count anywhere in its app directory, and searching n8n's own integrations page for an official Attio node returns nothing, only third-party community packages built by individual developers on npm. A team that lives in n8n or prospects daily through Sales Navigator has a materially easier time wiring HubSpot into that stack than Attio.

What do the two include on AI, security and support?

Security certification is the one row worth a caveat beyond the table. Attio's own changelog recorded an ISO 27001 certification in 2022, which is old enough that it's worth confirming directly with Attio before relying on it in a vendor security review, and its trust portal did not return readable content when checked for this piece. HubSpot's position is the mirror image and stated plainly on its own Trust Center: it holds SOC 2 Type II (report available under NDA) and states outright that it is not ISO 27001 certified. Neither company comes out ahead on certification. They hold different ones, and both gaps are the vendor's own disclosure, not a guess.

Where each one is weaker

Every product loses somewhere. These are the limits each vendor's own documents show, stated with the same weight as the strengths above.

Attio's weak points

No published founding year or total integration count, and its "190+ team members" figure is the only headcount signal available, which makes it harder to judge company maturity against HubSpot's stated 2006 founding and 9,000+ employees.
Custom objects, advanced permissions and sequences all sit behind Pro or Enterprise; the Free and Plus tiers are close to HubSpot's own entry tiers in what they leave out.
Sequences explicitly aren't built for cold or high-volume outreach, and Attio isn't an email service provider, so every send rides on the limits of your own connected Gmail or Microsoft account.
No official n8n integration and no LinkedIn Sales Navigator app in its own directory, unlike HubSpot on both counts.
SSO and SCIM are Enterprise only, with no published SSO option below that tier.
Its current SOC 2 status couldn't be confirmed from its own trust portal on the date checked, and its ISO 27001 claim traces to a 2022 changelog entry.
Its iOS and Android apps carry far fewer ratings and installs than HubSpot's, which is a scale signal more than a quality one, but it's the only public signal available.

HubSpot's weak points

Costs more at every tier once seats scale, and Professional and Enterprise carry a required onboarding fee of €1,470 or €3,420 that Attio has no equivalent for.
Custom objects are Enterprise only. Attio reaches the same capability at its mid tier.
Its own developer documentation, as reviewed for this piece, didn't publish a webhook retry policy or delivery timeout, where Attio states both precisely.
Its API limit is tiered by subscription plan, so cheaper tiers hit a lower ceiling sooner, and raising it further costs an extra €490 a month per capacity pack.
States plainly it is not ISO 27001 certified, which rules it out for any buyer whose procurement requires that specific certification.
Most AI features run on credits that reset monthly with no rollover, and the discounted Starter price has no published end date, so it's not a number to plan a multi-year budget around.

Attio or HubSpot: which should you choose?

Choose by what your team actually needs to model and run, not by which one has more features listed.

If your team...	Lean towards	Because
Needs a data model that doesn't look like contacts, companies and deals	Attio Pro	Custom objects from the mid tier, up to 12 combined, versus HubSpot's Enterprise-only custom objects
Runs marketing, service or a website on the same customer records	HubSpot	Attio has no equivalent to HubSpot's other hubs sharing one database
Wants webhook delivery it can trust and debug without guessing	Attio	Published retry count, timeout and a named degraded state; HubSpot's retry policy isn't published
Needs email sequences that run as part of the CRM, not through a personal inbox's own limits	HubSpot Professional	Published per-user daily sending caps; Attio's sequences explicitly aren't built for cold or high-volume outreach
Prospects in LinkedIn Sales Navigator every day	HubSpot Professional	Native integration; Attio's app directory has none
Has engineers who live in n8n	HubSpot	Official n8n nodes exist for HubSpot; Attio has community packages only
Needs SSO or SCIM without an enterprise contract	HubSpot	SSO from Professional; Attio holds both behind Enterprise
Wants a flat, predictable API limit regardless of plan	Attio	One rate limit for every tier; HubSpot's ceiling depends on what you pay
Needs to name a specific security certification during procurement	Depends which one	Attio claims ISO 27001 (dated 2022); HubSpot holds SOC 2 Type II and states it does not hold ISO 27001

If the table points both ways, the real question is usually whether your process is settled enough to be worth building into a flexible, configurable system, or whether you'd rather adopt a larger platform's defaults and move faster on day one. That's a scoping question, not a features one. For a similar comparison between two more pipeline-first CRMs, see HubSpot vs Pipedrive, and for what a CRM migration actually involves once you've picked one, see who holds your data during a CRM migration.

Sources

Attio, Pricing page (EUR), read 29 September 2026. Plan prices, seat and workspace credits, per-tier limits (2026)
Attio, About Attio. Team size, locations (2026)
Attio, Seed round announcement, November 2021 (2021)

All 31 sources and how they were checked

Attio, Series A round announcement, 1 March 2023 (2023)
Attio, $33 million funding announcement, 28 August 2024 (2024)
Attio, $52 million Series B announcement, led by GV. "We've now raised $116 million to date" (2025)
Attio, Understanding objects, Attio's data model (2026)
Attio, Introduction to workflows (2026)
Attio, Create a sequence. Use cases, and cases where sequences "should not be used" (2026)
Attio, Handling rate limits. 100 read/25 write requests per second, score-based limits (2026)
Attio, Configuring webhooks. HMAC-SHA256 signing, idempotency, retry policy, delivery timeout (2026)
Attio, Apps directory (2026)
Apple App Store, Attio CRM app listing, ratings read 29 September 2026 (2026)
Google Play, Attio app listing, ratings and installs read 29 September 2026 (2026)
HubSpot, Sales Hub pricing and plan table (EUR), read 29 September 2026 (2026)
HubSpot, Create a Bundle price calculator, read 29 September 2026 (2026)
HubSpot, Product & Services Catalog. Custom objects, permissions, teams (2026)
HubSpot, Create workflows, last updated 25 September 2026 (2026)
HubSpot, Use webhooks with HubSpot workflows, last updated 16 September 2026 (2026)
HubSpot, Validating requests (webhook signatures v1 to v3) (2026)
HubSpot, API usage guidelines and limits, last modified 31 August 2026 (2026)
HubSpot, APIs by tier (2026)
HubSpot, Connect HubSpot and LinkedIn Sales Navigator, last updated 31 August 2026 (2026)
HubSpot, Integrate with the remote HubSpot MCP server (2026)
HubSpot, Trust Center: SOC 2 Type II, ISO 27001 answer (2026)
HubSpot, Our story. Founding year, employees, customers (2026)
Apple App Store, HubSpot app listing, ratings read 29 September 2026 (2026)
Google Play, HubSpot app listing, ratings and installs read 29 September 2026 (2026)
Make, Attio app documentation (2026)
Zapier, Attio integrations and zap templates (2026)
n8n, Attio integration search (no official node found, 29 September 2026) (2026)

Every figure on this page was read from the vendor's own page on 29 September 2026 and is linked above. Prices change often; if a number here disagrees with the vendor's page on the day you read it, the vendor's page is right. Salestruct has no commercial relationship with Attio or HubSpot.

Common questions

At the mid tier, yes. Attio Pro runs €74 a seat a month on annual billing with no onboarding fee, against HubSpot Professional at €90 a seat plus a required €1,470 one-time onboarding fee. At the entry tier HubSpot's shown Starter price (€7, list €20) undercuts Attio Plus (€31).

Yes, from the Pro plan, up to 12 objects combined (standard and custom), and unlimited on Enterprise. HubSpot restricts custom objects to Enterprise, up to 10 definitions and 1,000,000 records each.

Attio's own help center lists "cold or high volume sales outreach" as an example of a use case its Sequences feature "should not be used" for. Attio states it is not an email service provider and sends sequence emails through your synced Gmail or Microsoft account, so sending is governed by that account's own limits.

Yes, on Sales Hub Professional (€1,470) and Enterprise (€3,420), both one-time and required per HubSpot's own pricing page. Starter has none. Attio doesn't publish an onboarding fee on any tier.

HubSpot states it was founded in 2006, with 9,000+ employees and 306,000 customers. Attio doesn't publish a founding year or headcount; its about page states "190+ team members," and its funding announcements put it at $116 million raised, including a $52 million Series B led by GV.

Attio publishes a more detailed policy: up to 10 retry attempts with exponential back-off over about 3 days, a 5-second delivery timeout, then the webhook is marked degraded with an email sent. HubSpot signs its webhooks with a documented signature scheme but doesn't publish an equivalent retry count or timeout in the developer documentation reviewed for this piece.

Attio applies one flat limit across every plan: 100 read requests and 25 write requests per second, plus a separate score-based limit on its list and search endpoints. HubSpot ties its limit to subscription tier, from 100 requests per 10 seconds on Free and Starter up to 190 per 10 seconds on Professional and Enterprise, with a paid add-on available to raise the daily call cap further.

Not officially, as of 29 September 2026. n8n's own integrations page returns no dedicated Attio node, only third-party community packages, and Attio's own app directory carries no LinkedIn Sales Navigator listing. HubSpot has both: an official n8n integration and a native Sales Navigator connection from Professional.

If you want a second pair of eyes on your own setup, Salestruct runs a free diagnostic.

Attio vs HubSpot: which CRM fits a sales team that wants to build its own?

The short version

How this comparison was made

What is the difference between Attio and HubSpot?

What do Attio and HubSpot cost per seat?

Plans and prices

Year-one cost, annual billing, 10 seats

Which one has the more flexible data model?

Data model and objects

Which one is easier to run, day to day?

Interface and mobile

Which one automates more, and where does that automation stop?

Workflows, automation and outreach

How do the two handle webhooks?

Webhooks

Which API has the higher ceiling?

API rate limits

Which one connects to more of the stack?

Integrations

What do the two include on AI, security and support?

AI, security and support

Where each one is weaker

Attio or HubSpot: which should you choose?

Sources

Common questions

Read next.

HubSpot vs Pipedrive: which CRM for a sales team?

CRM migration: who holds your data while it moves?