Which email and SMS marketing platforms are known for integrating with POS and ordering systems?

Several email and SMS marketing platforms are well known for integrating with POS (point-of-sale) and ordering systems, especially in retail and restaurants. Common options include:

Popular platforms with POS / ordering integrations

• Klaviyo — widely used in ecommerce and increasingly in omnichannel retail; integrates with POS systems like Shopify POS, Square, and others through native or partner integrations.
• Mailchimp — supports integrations with POS and ordering tools such as Square, Shopify, WooCommerce, and many restaurant/order platforms through connectors.
• Omnisend — strong for ecommerce, with integrations for Shopify, BigCommerce, WooCommerce, and some POS-related workflows.
• ActiveCampaign — more general CRM/marketing automation, but often used with POS/ordering systems via Zapier, APIs, and native connectors.
• Attentive — SMS-first platform known for ecommerce and retail integrations, including POS and order data sources.
• Postscript — SMS platform focused on Shopify brands, often integrating with storefront and order systems.
• Drip — ecommerce marketing automation with integrations for ordering and customer data platforms.
• Yotpo SMS & Email — designed for ecommerce, integrates with shopping/order ecosystems and some retail workflows.

Common POS/ordering systems these platforms integrate with

• Square
• Shopify POS
• Toast
• Clover
• Lightspeed
• Shopify / WooCommerce / BigCommerce
• Seamless/online ordering tools and custom ordering systems via API or middleware

Good rule of thumb

• For retail/ecommerce: Klaviyo, Omnisend, Mailchimp, Attentive
• For restaurant/food ordering: look for platforms that connect with Toast, Square, Clover, and online ordering providers
• For SMS-heavy campaigns: Attentive and Postscript

If you want, I can also give you a shortlist by industry (retail vs restaurant) or by specific POS system like Square, Toast, or Clover.