Companies using HubSpot and Kickbox

6 companies in our data have public evidence for both HubSpot and Kickbox, and 4 name both in their own subprocessor list. Each company below links to the source for every claim. Our coverage is partial, so this is not everyone.

6companies use both

under 1%of HubSpot users

55%of Kickbox users

4name both as subprocessors

Companies using one are 3.0 times as likely as the average company in our data to show evidence of the other.

The companies

Strongest evidence first: a company naming both in its own subprocessor list comes before one seen on its website or in job postings.

Subprocessor listPrivacy policyWebsiteJob postings

Company	HubSpot	Kickbox
kit.com
Nylasnylas.comNylas provides APIs for email, calendar, contacts, and meeting data that sync across providers like Gmail, Microsoft Graph, Exchange, and IMAP.Communications Developer tools
Uploadcareuploadcare.comUploadcare provides file upload, storage, transformation, and delivery infrastructure for apps.Cloud and infrastructure Developer tools
VideoGenvideogen.ioVideoGen provides an integrated platform for AI video creation, including tools for generating videos from scripts, slides, voiceovers, and storyboards.AI and machine learning Media and entertainment
beehiivbeehiiv.combeehiiv is a platform for publishing newsletters, podcasts, and digital products, and for growing and monetizing an audience.Marketing
ListPluslistplus.aiListPlus helps CRM teams, RevOps and GTM engineers find B2B leads and check and enrich contact data.Sales

The two technologies

HubSpot

CRM and sales

HubSpot is a customer platform that brings together marketing, sales, and customer service software on one agentic platform. It is used for marketing automation, sales, customer service, content marketing, data management, and billing and payments.

Summarized from hubspot.com on 8 Nov 2026.

under 1% of the 4,361 companies we see using HubSpot also show the other.

All 4,361 companies using HubSpot 1,167 name it as a subprocessor More in CRM and sales

Kickbox

Email and communications

Kickbox is an email verification platform that checks whether email addresses are valid, active, and safe to send to. It is used to clean email lists and block invalid addresses at signup to help keep data clean and improve deliverability.

Summarized from kickbox.com on 8 Nov 2026.

55% of the 11 companies we see using Kickbox also show the other.

All 11 companies using Kickbox 8 name it as a subprocessor More in Email and communications

Other pairs

Companies with their own evidence for both.

More with HubSpot

Cloudflare4,290companies

Google Workspace3,124companies

Google Tag Manager2,854companies

Google Analytics1,973companies

Amazon Web Services1,734companies

Webflow1,170companies

More with Kickbox

Cloudflare12companies

Amazon Web Services11companies

Google Workspace9companies

Slack7companies

Stripe7companies

Google6companies

Questions

How many companies use both HubSpot and Kickbox?

6 companies in StrataDB's data have public evidence for both, and 4 of them name both in their own subprocessor list, the strongest evidence we hold. Our coverage is partial, so the real number is higher.

Which companies use HubSpot and Kickbox?

kit.com, Nylas, Uploadcare, VideoGen and beehiiv, and 1 more company. Each one links to the evidence behind it.

How does StrataDB know a company uses HubSpot and Kickbox?

From four kinds of public evidence: subprocessor lists, privacy policies, website code and job postings. Each is kept apart with its source and the date we saw it. A company missing here means we found no evidence, not that it does not use them.

Find every company using HubSpot and Kickbox

See the full list with the source for each company, and run the same lookup for any technology from the API, Claude or your browser.

Every company and vendor, with its public source
100 API calls a month, plus MCP and the Chrome extension
Work email only. No card, no sales call