---
title: "Who Uses HubSpot? Build the List Yourself"
description: "Who uses HubSpot: 299,458 paying customers, no public roster. Detect the stack yourself, tell CMS Hub from analytics only, and price the list per company."
canonical: "https://derrick-app.com/crm-data-enrichment/who-uses-hubspot"
category: "CRM Data Enrichment"
updated: "2026-09-06"
---

# Who Uses HubSpot: 299,458 Companies, and None of Them on a Public List

> HubSpot reported 299,458 paying customers as of 31 March 2026 and does not publish the roster, so no complete list of who uses HubSpot exists to buy. The only reliable evidence is the fingerprint each customer leaves on its own website, and that fingerprint is granular: it tells you whether a company runs its whole site on CMS Hub, keeps its own front end and loads only the analytics and chat layers, or captures leads through HubSpot forms alone. Those are three different prospects with three different problems, and flattening them into one boolean is why stack based targeting so often misses. Detection costs 2 credits per domain and a fully qualified contactable row lands near 10 credits, but the signal is a strong qualifier and a weak disqualifier: Sales Hub only customers leave no public trace at all.

*Canonical: https://derrick-app.com/crm-data-enrichment/who-uses-hubspot* · *CRM Data Enrichment*

---

Ask who uses HubSpot and the answer splits into a reference directory that is accurate and tiny, and vendor files that are large and undated. Neither is the list you want. This guide covers what a website actually reveals about a HubSpot deployment, how to tell the CMS customers from the analytics only ones, what the signal cannot see, and what building your own segment costs per company.

**There is a file waiting for you in this guide:** [14 companies checked live for HubSpot](#derrick-csv), exported with Derrick on 6 September 2026, free. 11 of them run it, and the file says which components. The 3 that do not are in there too, because absence is not proof.

## Who uses HubSpot: the short answer

Nearly three hundred thousand companies use HubSpot, and asking **who uses HubSpot** is only useful once you narrow it to the ones you can sell to. HubSpot reported 299,458 paying customers as of 31 March 2026. No public list contains all of them, and no vendor file is anywhere close, because HubSpot does not publish its customer roster and the only reliable evidence is the fingerprint each customer leaves on its own website.

That fingerprint is detectable, and it is more precise than most people expect. HubSpot is not one product, so "uses HubSpot" is not one fact. A company can run its entire website on the CMS, or keep a Next.js site and only load the analytics and chat widgets, or use the CRM with no public trace at all. Those are three very different prospects, and a list that flattens them into a single boolean is why so much stack based targeting misses.

This guide covers where the published lists come from and why they decay, how to detect the stack yourself from a website, what the signal does and does not prove, and what building your own segment costs per company. If your goal is enriching records you already hold rather than finding new ones, our guide on [HubSpot data enrichment workflows](https://derrick-app.com/crm-data-enrichment/hubspot-enrichment-workflows) covers that side, and [the five layer CRM data strategy](https://derrick-app.com/crm-data-enrichment/crm-data-strategy) covers where a stack signal sits in the wider picture.

![How many companies use HubSpot, the reported figure](/illustrations/articles/who-uses-hubspot/hub-v1-how-many.webp)The customer count is public, the customer list is not, and that gap is where bought files fall apart.

## How many companies use HubSpot, and why the number matters

299,458 paying customers is the number HubSpot itself reported for the quarter ending 31 March 2026, up roughly sixteen percent year on year. Hold that figure next to the customer counts advertised by list vendors and the arithmetic stops working. A file claiming a couple of hundred thousand HubSpot using companies is either claiming near total coverage of a private roster, which nobody has, or it is counting something looser, such as any domain that has ever loaded a HubSpot asset, including agencies testing on client sites and companies that churned two years ago.

The number matters for a second reason. Three hundred thousand is a large market and a useless segment. HubSpot's customer base runs from a two person consultancy on a starter seat to a listed enterprise on the full suite. Nothing you sell is relevant to both. The tech signal is the first filter, never the whole qualification, and the sections below are about turning it into something narrower.

![Where lists of who uses HubSpot come from](/illustrations/articles/who-uses-hubspot/hub-v2-list-origins.webp)Three families of source, and none of them answers the question you actually asked.

## Where "who uses HubSpot" lists actually come from

Search the question and the results split into three families, and it is worth knowing which one you are looking at.

The first is HubSpot's own case study directory. It is accurate and it is tiny, because it contains only customers who agreed to be a reference. Useful for proof, useless as a prospecting list.

The second is vendor files sold per record, advertising counts in the hundreds of thousands. These are built by crawling the web for HubSpot assets at some point in the past, then joining the domains to a contact database. The crawl date is the number that decides whether the file is any good, and it is the one number never shown.

The third is technographic platforms that expose the same crawl as a searchable index. Honest about the method, priced as a subscription, and still a snapshot taken on somebody else's schedule.

All three answer a slightly different question than the one you asked. You do not want every company that has ever touched HubSpot. You want the ones that use it now, in your segment, at a size where your offer applies, with a named person you can reach. That list does not exist to be bought, which is the good news: it is the reason building it is a real advantage rather than a chore.

![Detecting who uses HubSpot from a website](/illustrations/articles/who-uses-hubspot/hub-v3-signal-table.webp)The components are detectable separately, and each one points at a different offer.

## Detect the stack yourself: what a website actually reveals

A HubSpot deployment leaves traces in the page that a detector can read without any privileged access. The useful part is that the traces are granular enough to tell you which parts of HubSpot are in use.

Two real measurements taken on 6 September 2026 make the point better than a description. The first site returns HubSpot CMS Hub as its content management system, alongside HubSpot Analytics, HubSpot Chat and the core HubSpot library. The whole web presence lives inside HubSpot. The second site returns Next.js on Vercel with React underneath, and HubSpot Analytics, HubSpot Chat and the core library on top. This company keeps its own front end and uses HubSpot for the marketing and conversation layer.

| What the detector returns | What it means | What to sell them |
| --- | --- | --- |
| HubSpot CMS Hub as the CMS | Website, blog and landing pages all inside HubSpot | Anything touching content operations, migration, or page performance |
| HubSpot Analytics with a different CMS | Marketing and CRM inside HubSpot, front end owned elsewhere | Data flow between the site and the CRM, attribution, enrichment |
| HubSpot Chat present | Conversations routed through HubSpot | Routing, qualification, inbox and handover workflows |
| HubSpot forms only | Lead capture in HubSpot, often a partial deployment | Field quality, deduplication, lead scoring |
| No public HubSpot trace | Either not a customer, or Sales Hub only with no public surface | Nothing yet, this row needs another signal |

Read that last row carefully, because it is the honest limit of the method and the next section is about it.

![What the HubSpot tech signal proves and what it does not](/illustrations/articles/who-uses-hubspot/hub-v4-qualifier.webp)A strong qualifier and a weak disqualifier, with the two blind spots that follow from it.

## What the tech signal does and does not tell you

Front end detection sees what a browser sees. That produces two blind spots you should plan around rather than pretend away.

The first is the silent customer. A company running Sales Hub for its reps, with no HubSpot tracking on a marketing site built by an agency, is a paying customer with no public fingerprint. You will never find them this way, and no vendor file finds them either, because vendor files are built from the same crawl.

The second is the false positive. Marketing agencies and HubSpot partners load HubSpot assets on sites they build for clients, and a landing page spun up for one campaign can leave a trace long after the account lapsed. A domain that shows a single HubSpot asset and nothing else deserves a second signal before it enters a campaign.

The practical rule is that a stack detection is a strong qualifier and a weak disqualifier. Present means present. Absent means unknown. Treat the absent rows as a separate segment to enrich by another route rather than as rejections, and you keep the half of the market everyone else throws away.

## From "who uses HubSpot" to a segment worth selling to

A domain with a confirmed stack is not yet a prospect. Three joins turn it into one, and each is a column you can run over the whole list.

**Company shape.** Headcount, industry and country decide whether your offer applies at all. [Enrich Companies](https://derrick-app.com/features/enrich-companies?utm_source=seo&utm_medium=article&utm_campaign=cr-who-uses-hubspot-feature) pulls the available company information at 1 credit per company and runs on the free plan. If your best current customers already use HubSpot, [Find Similar Companies](https://derrick-app.com/features/find-similar-companies?utm_source=seo&utm_medium=article&utm_campaign=cr-who-uses-hubspot-feature) turns one of them into a whole matched list at 1 credit per company, which is often a faster route to the segment than detection alone.

**The named person.** The stack tells you the company uses HubSpot. It does not tell you who administers it. [Find a company's people](https://derrick-app.com/features/find-staff-members?utm_source=seo&utm_medium=article&utm_campaign=cr-who-uses-hubspot-feature) lists current and former staff at 1 credit per person and filters by job function, so you keep the revenue operations or marketing operations owner rather than everyone on the payroll.

**The reachable address.** [Email Finder](https://derrick-app.com/features/email-finder?utm_source=seo&utm_medium=article&utm_campaign=cr-who-uses-hubspot-feature) costs 5 credits per email and bills only per result found, and [Email Verification](https://derrick-app.com/features/email-verification?utm_source=seo&utm_medium=article&utm_campaign=cr-who-uses-hubspot-feature) confirms the mailbox at 1 credit before you send.

![What a list of companies that use HubSpot costs to build](/illustrations/articles/who-uses-hubspot/hub-v5-row-cost.webp)Two credits to answer the question, ten for a qualified row with a verified address.

## What a HubSpot user list costs to build

Bought technographic files are priced per record or as a subscription, and quoted rather than listed. Built rows price per step, and you only pay for the steps that resolve.

| Step | Feature | Cost | Billed |
| --- | --- | --- | --- |
| Detect the stack | Website Technologies | 2 credits / website | Per row requested |
| Qualify the company | Enrich Companies | 1 credit / company | Per row, free plan included |
| Find the owner | Find a company's people | 1 credit / person | Per person |
| Find the address | Email Finder | 5 credits / email | Per result found |
| Verify the address | Email Verification | 1 credit / email | Per result |

That is 2 credits to answer the question on any domain, and roughly 10 credits for a fully qualified and contactable row. The detection step is the cheap one on purpose: you run it across a wide list, keep the confirmed rows, and only spend the remaining eight credits on those. Detection itself sits on a paid plan. Paid plans start at 9 euros a month, and at the largest plan the credit floor of 0.0016 euros puts a complete qualified row near 1.6 cents. Derrick behaves the same at fifty domains and at fifty thousand.

## Why "who uses HubSpot" lists go stale so fast

Stack data decays faster than firmographic data, and for a reason worth understanding rather than just budgeting around. Company name, country and industry change rarely. A marketing stack changes whenever a new head of marketing arrives, which in practice is every couple of years in a growing company.

Three movements break a stack list. A migration onto HubSpot creates a prospect your file does not contain. A migration off it leaves a row that still looks valid until someone pitches a HubSpot integration to a company that left last quarter, which is the most expensive way to open a conversation. And a partial rollout, where marketing adopts HubSpot while sales stays elsewhere, makes both the present and absent labels half true at once.

The answer is the same as for any decaying list. Keep the definition, not the file. A stored query, re-run on a date you choose, beats a purchased snapshot every time. And when a migration is the thing you actually sell against, [Signal](https://derrick-app.com/features/signal?utm_source=seo&utm_medium=article&utm_campaign=cr-who-uses-hubspot-feature) tracks leads and accounts for job changes, funding, hiring sprees and tech stack moves, and starts at 20 euros a month, so the move reaches you when it happens rather than at your next refresh.

**One email every two weeks.** Fill Down covers go-to-market and sales data tactics, including how teams keep stack based segments from rotting. [Subscribe to the Fill Down newsletter →](https://www.linkedin.com/newsletters/fill-down-gtm-sales-news-7480639838598184961/)

## Running the detection in one sheet

The whole thing is one spreadsheet with a domain in column A and a date stamp in the last column. Domain, detected CMS, HubSpot components found, detection date, headcount, industry, named owner, job function, found address, verification status. Each column is re-runnable on its own, which is what makes the list a living definition rather than a file.

The same steps run from three surfaces and the right one depends on where the answer needs to land. The spreadsheet sidebar suits a list a human will read and correct. The REST API suits a check that has to run whenever a new account enters the CRM, which is the natural place for stack detection to live. And an [MCP](https://derrick-app.com/mcp?utm_source=seo&utm_medium=article&utm_campaign=cr-who-uses-hubspot-feature) connection suits asking an AI assistant whether a given account runs HubSpot, and getting the answer inside the conversation instead of a tab. A web app is coming as well. Match the surface to the workflow.

One habit is worth more than the tooling: write the detection date into every row. Without it you cannot tell a confirmed customer from a company that left, and six months later the whole file becomes untrustworthy at once. Our [CRM data quality report](https://derrick-app.com/crm-data-enrichment/crm-data-quality-report-2026) covers what undated fields do to a database over time.

## Five mistakes when targeting HubSpot users

1. **Treating "uses HubSpot" as one fact.** CMS Hub, analytics only and chat only are different companies with different problems. Segment on the components, not the brand.
2. **Reading absence as rejection.** Sales Hub leaves no public trace. The undetected rows are an unworked segment, not a disqualified one.
3. **Buying on record count.** HubSpot had 299,458 paying customers in March 2026. Any file claiming comparable coverage of a roster HubSpot does not publish is measuring something else.
4. **Skipping the second signal on thin detections.** One HubSpot asset and nothing else is often an agency artefact or a dead campaign page.
5. **Storing the file instead of the query.** Stacks change with every new marketing lead. A dated, re-runnable definition survives that. A CSV does not.

## Key takeaways

- HubSpot reported 299,458 paying customers as of 31 March 2026, and does not publish the roster, so no complete list exists to buy.
- Detection reads the components separately: CMS Hub, analytics, chat and forms tell you which parts of HubSpot are in use.
- Two live measurements on 6 September 2026 showed one site fully on CMS Hub and another on Next.js with only the analytics and chat layers.
- Present is a strong qualifier, absent is unknown, because Sales Hub only customers leave no public trace.
- Detection costs 2 credits per domain, and a fully qualified contactable row lands near 10 credits.
- Stack data decays with every change of marketing leadership, so keep the query and the detection date, not the file.

## Use Derrick in Claude (MCP) or via API

Derrick isn't only a Google Sheets add-on. The same B2B data enrichment runs as an MCP server (use it directly inside Claude and other AI agents) and as a REST API:

- **Claude / AI agents (MCP)**: connect the Derrick MCP server, then enrich from chat. Setup: /mcp
- **REST API**: call the same enrichment endpoints from your own stack (PLUS plan and up). Docs: https://app1.derrick-app.com/api/v1/docs/

## FAQ

### How many companies use HubSpot?
HubSpot reported 299,458 paying customers as of 31 March 2026, up roughly sixteen percent year on year. That is the company's own figure for paying accounts, and it covers everything from a two person consultancy on a starter seat to a listed enterprise on the full suite, which is why the raw number is a market size rather than a usable segment.

### Is there a public list of companies that use HubSpot?
No complete one. HubSpot publishes a case study directory, but it only contains customers who agreed to be a reference, so it is accurate and very small. Everything else on the market is built by crawling the web for HubSpot assets and joining the domains to a contact database, which means it is a snapshot taken on somebody else's schedule, with a crawl date that is almost never disclosed.

### How can you tell if a company uses HubSpot?
Read the technologies its website loads. A HubSpot deployment leaves traces that a detector can read without privileged access, and the traces are granular enough to separate the CMS from the analytics, chat and form layers. Running that detection over a column of domains answers the question at scale, at 2 credits per website, and returns the CMS separately from the other components.

### Does using HubSpot always show up on a website?
No, and this is the honest limit of the method. A company running Sales Hub for its reps, with no HubSpot tracking on a marketing site built elsewhere, is a paying customer with no public fingerprint. Front end detection sees what a browser sees, so present is a strong qualifier while absent only means unknown. Treat undetected rows as a segment to enrich by another route, not as rejections.

### What is the difference between HubSpot CMS Hub and HubSpot analytics on a site?
CMS Hub means the website, blog and landing pages are all built and served inside HubSpot, so the company's whole web presence lives there. Analytics or chat on a different CMS means the marketing and conversation layers run through HubSpot while the front end is owned elsewhere, often on a modern JavaScript framework. In two live measurements on 6 September 2026, one site returned HubSpot CMS Hub and another returned Next.js on Vercel with only HubSpot Analytics and Chat on top.

### Why do lists of HubSpot users go out of date so quickly?
Because a marketing stack changes whenever marketing leadership changes, which in a growing company is every couple of years. Migrations onto HubSpot create prospects your file does not contain, migrations off it leave rows that still look valid, and partial rollouts where marketing adopts HubSpot but sales does not make both labels half true. Keeping a re-runnable query with a detection date on every row solves this in a way that buying a fresher file does not.

### What does it cost to build a list of companies using HubSpot?
Detection is 2 credits per website, which is the step you run wide. A fully qualified and contactable row is roughly 10 credits once you add company enrichment at 1 credit, the named person at 1 credit, the email lookup at 5 credits billed only per result found, and verification at 1 credit. The free plan is 100 credits a month at no cost, enough to detect fifty domains outright, and paid plans start at 9 euros a month.

### Should you sell to a company the moment it adopts HubSpot?
That depends on whether the migration itself is what you sell against, but timing beats coverage in either case. A stack move detected weeks after the fact is a cold fact, while the same move caught as it happens is a reason to write. Tracking accounts for tech stack moves alongside job changes, funding and hiring turns the refresh problem into an alert rather than a periodic re-crawl.

## Related

- [CRM Enrichment: How to Enrich Your HubSpot or Salesforce Data (Complete Guide)](https://derrick-app.com/crm-data-enrichment/hubspot-vs-pipedrive)
- [HubSpot Data Enrichment: How to Automate It With Workflows](https://derrick-app.com/crm-data-enrichment/hubspot-enrichment-workflows)
- [The State of CRM Data Quality 2026: Decay, Cost and the Enrichment Gap](https://derrick-app.com/crm-data-enrichment/crm-data-quality-report-2026)
- [CRM Data Strategy](https://derrick-app.com/crm-data-enrichment/crm-data-strategy)
- [HubSpot Lead Scoring: Why Your Fit Scores Are Probably Wrong](https://derrick-app.com/crm-data-enrichment/hubspot-lead-scoring)
- [CRM Contact Management](https://derrick-app.com/crm-data-enrichment/contact-management)
- [Lead Scoring Software: A Score Is Only Its Fields](https://derrick-app.com/crm-data-enrichment/lead-scoring-software)