/
Log inGet free API keyAccount
Menu
CompaniesTechnologiesAI indexDocsPricingChrome extensionLog inAccount

Technologies / Amazon Web Services / Klaviyo

Companies using Amazon Web Services and Klaviyo

34 companies in our data have public evidence for both Amazon Web Services and Klaviyo, and 22 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.

34companies use both
1%of Amazon Web Services users
58%of Klaviyo users
22name 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

CompanyAmazon Web ServicesKlaviyo
ATAR Notesatarnotes.comEducation
Attribyteattribyte.appAttribyte is a system for managing creator collaborations, ads and payouts, including finding creators and tracking which content drives sales.Marketing
CanIPhishcaniphish.comCanIPhish provides phishing simulations and security awareness training.Cybersecurity
CaptionCallcaptioncall.comCaptionCall provides real-time captions for phone calls through a home captioned telephone and a mobile app.Communications
Cometlycometly.comCometly provides marketing attribution and analytics software that connects ad, CRM, and revenue data and syncs attribution data back to ad platforms.Data and analyticsMarketing
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
Everfureverfur.comEverfur provides video vet visits and delivers prescription medications for pets.Healthcare
Finrepfinrep.aiFinrep provides AI tools for researching SEC filings and drafting and reviewing disclosure documents.AI and machine learningFinance and accounting software
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
Klevuklevu.comAthos Commerce provides ecommerce search, merchandising, and personalization capabilities.E-commerce
Lightspeedlightspeedhq.comLightspeed provides a point-of-sale and payments platform for selling in person and online.Food and restaurantsRetail
Neural Partnersneuralpartners.aiNeural Partners builds websites, catalogs, bookings and payments for showrooms, home services and local businesses.AI and machine learningMarketing
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
Sorenson Communicationssorenson.comSorenson provides video relay services, captioned phone calls, and interpreting, captioning, and translation services.CommunicationsConsulting and services
STOQstoqapp.comSTOQ is a Shopify app that lets stores offer preorders and back-in-stock alerts.E-commerce
Topaz Labstopazlabs.comTopaz Labs provides AI image and video enhancement and upscaling software across desktop, web, and mobile apps.AI and machine learningDesign and creative
Blufireblufire.com.auData and analyticsE-commerce
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
KnoCommerceknocommerce.comKnoCommerce provides post-purchase survey tools for collecting customer feedback and attribution data.Data and analyticsE-commerce

9 more companies

See every company using both Amazon Web Services and Klaviyo, with the source for each.

Create a free accountWork email, no card. Already have one? Log in

The two technologies

Amazon Web Services

by Amazon · Cloud and infrastructure

Amazon Web Services is a cloud provider offering a broad set of on-demand computing, storage, database, analytics, and AI services. It is used to build, deploy, and scale applications and workloads in the cloud.

Summarized from aws.amazon.com on 8 Nov 2026.

1% of the 5,458 companies we see using Amazon Web Services also show the other.

All 5,458 companies using Amazon Web Services4,285 name it as a subprocessorMore in Cloud and infrastructure

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.

58% 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

Industries

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

E-commerce9AI and machine learning7Marketing6Data and analytics3Cybersecurity2Communications2Healthcare2

Other pairs

Companies with their own evidence for both.

More with Amazon Web Services

Cloudflare5,260companiesGoogle Workspace3,961companiesGoogle Tag Manager2,577companiesGoogle Analytics2,170companiesGoogle2,042companiesStripe2,029companies

More with Klaviyo

Cloudflare59companiesGoogle Workspace49companiesStripe35companiesGoogle34companiesOpenAI28companiesGoogle Analytics26companies

Questions

How many companies use both Amazon Web Services and Klaviyo?

34 companies in StrataDB's data have public evidence for both, and 22 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 Amazon Web Services and Klaviyo?

ATAR Notes, Attribyte, CanIPhish, CaptionCall and Cometly, and 29 more companies. Each one links to the evidence behind it.

How does StrataDB know a company uses Amazon Web Services and Klaviyo?

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 Amazon Web Services and Klaviyo

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