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Technologies / Klaviyo / OpenAI

Companies using Klaviyo and OpenAI

28 companies in our data have public evidence for both Klaviyo and OpenAI, and 13 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.

28companies use both
47%of Klaviyo users
1%of OpenAI users
13name both as subprocessors

Companies using one are 3.4 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

CompanyKlaviyoOpenAI
ATAR Notesatarnotes.comEducation
Babbilybabbily.comBabbily provides a unified platform that integrates AI capabilities for writing, research, coding, and creative tasks.AI and machine learning
CostRadar.aiCostRadar by Radrly is an AI profit agent for Shopify and multichannel e-commerce that tracks costs, ad spend, fees and COGS and shows true net profit per order, product and channel.AI and machine learningE-commerce
Finrepfinrep.aiFinrep provides AI tools for researching SEC filings and drafting and reviewing disclosure documents.AI and machine learningFinance and accounting software
FitFocusfitfocus.ioFitFocus provides business software for coaching that combines programs, nutrition, messaging, scheduling, payments and a branded client app in one platform.
Kanalgetkanal.comKanal is a WhatsApp marketing platform that connects to Shopify to recover abandoned carts, send campaigns, and answer customer questions through an AI agent.E-commerceMarketing
Revampgetrevamp.aiRevamp provides AI agents that research, re-engage, qualify, and book meetings from leads a sales team cannot get to.AI and machine learningSales
GRIN AIgrin.aiGrin provides AI-native creator marketing software that finds, recruits, activates, and manages creators for brand partnership programs.Marketing
HERmoneshermones.comHERmones is an app that tracks mood and glow, logs symptoms, and offers rituals, skincare recommendations, and an AI coach for hormone-related changes.Consumer appsHealthcare
Ossprey Securityossprey.comOssprey is a security tool that detects and prevents malicious code and supply chain threats in open source software.CybersecurityDeveloper tools
Reactivreactiv.aiReactiv provides App Clips and full iOS and Android mobile apps for commerce brands.E-commerce
Relay Commercerelaycommerce.ioRelay provides an ecosystem of Shopify apps and expertise for e-commerce, covering popups, email/SMS, package protection, subscriptions, and predictive flows.E-commerce
Sintrasintra.aiSintra provides AI employees that handle business tasks such as social media, SEO, sales, copywriting, and customer support.AI and machine learningProductivity and collaboration
BubblaVbubblav.comBubblaV provides an AI chatbot and AI Copilot that answer customer questions and draft support replies using a company's own website content.AI and machine learningCustomer support
Finsifinsi.aiFinsi provides AI agents that work from a single data warehouse with shared metric definitions, and lets teams connect their own agents over MCP or API.AI and machine learningE-commerce
BRDG Buildergetbrdg.aiBRDG provides tools that turn a brand's public store information into brand kits and organize catalog data into product facts.AI and machine learningE-commerce
Goosy Beargoosybear.aiGoosy is an AI marketing system that plans, creates, publishes and improves marketing content, websites and campaigns for a brand.AI and machine learningMarketing
Poplpopl.coPopl provides an AI platform for capturing leads at in-person events by scanning badges, business cards, and QR codes, then enriching the data and syncing it to a CRM.
ReferralCandyreferralcandy.comReferralCandy provides referral, affiliate, and loyalty program software for online stores.E-commerceMarketing
Activated Humanactivatedhuman.earthThe company builds AI products that help individuals discover what matters most to them and align their daily lives with that vision.AI and machine learningConsumer apps
Cosinecosine.shCosine trains AI models for organisations that need frontier capability inside secure environments.AI and machine learningGovernment and public sector
CWILLcwill.comCWILL provides post-purchase and retention software for Shopify and DTC brands, including order tracking, returns and exchanges, shipping protection, product reviews, loyalty and referrals, pop-up and email marketing, AI chat, and SEO and speed tools.E-commerce
Eventisteventist.caEventist provides event management software and ticketing for event organizers.
JAAQjaaq.appJAAQ provides an engagement platform with expert-led mental health videos, conversational AI and referral pathways that organizations embed into their existing digital systems.Healthcare
Meet Alto AImeetalto.aiAlto provides social media automation tools including comment-to-DM, AutoDM, AI replies, and a shared inbox.Marketing

3 more companies

See every company using both Klaviyo and OpenAI, with the source for each.

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The two technologies

Klaviyo

Email and communications

Klaviyo is a marketing and customer relationship platform that brings together email, SMS, WhatsApp, mobile push, and other channels with customer data. It is used by businesses to plan, personalize, and automate customer communications and customer service.

Summarized from klaviyo.com on 8 Nov 2026.

47% of the 59 companies we see using Klaviyo also show the other.

All 59 companies using Klaviyo30 name it as a subprocessorMore in Email and communications

OpenAI

AI and LLM providers

OpenAI is a platform that provides an API for building with OpenAI models. It is used to access models, tools, and services for tasks such as text generation, image generation, audio, and agents.

Summarized from developers.openai.com on 8 Nov 2026.

1% of the 3,285 companies we see using OpenAI also show the other.

All 3,285 companies using OpenAI2,522 name it as a subprocessorMore in AI and LLM providers

Industries

Among the companies above, by our own classification of their homepage.

AI and machine learning11E-commerce8Marketing5Consumer apps2Healthcare2Productivity and collaboration2

Other pairs

Companies with their own evidence for both.

More with Klaviyo

Cloudflare59companiesGoogle Workspace49companiesStripe35companiesAmazon Web Services34companiesGoogle34companiesGoogle Analytics26companies

More with OpenAI

Cloudflare3,275companiesGoogle Workspace2,471companiesAnthropic1,992companiesAmazon Web Services1,891companiesStripe1,640companiesGoogle1,545companies

Questions

How many companies use both Klaviyo and OpenAI?

28 companies in StrataDB's data have public evidence for both, and 13 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 Klaviyo and OpenAI?

ATAR Notes, Babbily, CostRadar.ai, Finrep and FitFocus, and 23 more companies. Each one links to the evidence behind it.

How does StrataDB know a company uses Klaviyo and OpenAI?

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 Klaviyo and OpenAI

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
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