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Technologies / DocuSeal / Vercel

Companies using DocuSeal and Vercel

5 companies in our data have public evidence for both DocuSeal and Vercel, 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.

5companies use both
50%of DocuSeal users
under 1%of Vercel users
4name both as subprocessors

Companies using one are 2.5 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

CompanyDocuSealVercel
Blocksblocks.diyBlocks is a platform that deploys AI agents to execute daily operations on top of a company's ERP.AI and machine learningLogistics and supply chain
CloseIntelcloseintel.aiCloseIntel provides an AI sales improvement system that grades sales calls against a company's own sales process, ramps new hires, and trains sales professionals on their gaps.AI and machine learningSales
intake.linkintake.link is a legal intake platform that combines e-signatures, payment collection, and custom intake forms into a single client-facing link.Legal
N3XTn3xt.ioN3XT provides an instant USD payment network for B2B transactions with programmable, real-time settlement.FintechPayments
Sicileansicilean.techSicilean is a venture builder that builds its own products and projects for clients using strategy, design, technology and AI systems.AI and machine learningDesign and creative

The two technologies

DocuSeal

Productivity

DocuSeal is a document signing platform that can be used through a web interface, an API, or self-hosted on a user's own servers. It is used to send documents such as PDF, DOCX, and XLSX files for electronic signature, and its eSignatures are described as legally binding under regulations such as ESIGN, UETA, and eIDAS.

Summarized from docuseal.com on 9 Nov 2026.

50% of the 10 companies we see using DocuSeal also show the other.

All 10 companies using DocuSeal8 name it as a subprocessorMore in Productivity

Vercel

Cloud and infrastructure

Vercel is a platform for deploying and running web apps and AI agents, with services such as Fluid Compute, Sandbox, and an AI Gateway for accessing over 400 models. It is used by developers and coding agents to ship frontend and backend applications, durable workflows, and sandboxed code execution.

Summarized from vercel.com on 8 Nov 2026.

under 1% of the 4,718 companies we see using Vercel also show the other.

All 4,718 companies using Vercel1,236 name it as a subprocessorMore in Cloud and infrastructure

Other pairs

Companies with their own evidence for both.

More with DocuSeal

Cloudflare10companiesGoogle Workspace10companiesGoogle8companiesStripe7companiesOpenAI6companiesAmazon Web Services5companies

More with Vercel

Cloudflare4,705companiesNext.js3,517companiesGoogle Workspace3,373companiesGoogle Analytics1,432companiesStripe1,390companiesAmazon Web Services1,259companies

Questions

How many companies use both DocuSeal and Vercel?

5 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 DocuSeal and Vercel?

Blocks, CloseIntel, intake.link, N3XT and Sicilean. Each one links to the evidence behind it.

How does StrataDB know a company uses DocuSeal and Vercel?

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 DocuSeal and Vercel

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