Underground Ecom provides email marketing, SMS, and retention services for DTC brands. It is listed on Klaviyo's agency directory at the Elite Master tier, where it lists Implementation & Onboarding, Omnichannel Messaging, Data & Analytics and 2 more services for brands with $1M to over $500M in annual revenue, on Shopify, Shopify Plus, BigCommerce, Magento, Salesforce Commerce Cloud, WooCommerce, Miva and Prestashop.
Overview
Underground Ecom is an email and retention marketing agency based in London. It provides CRM audits, retention strategy, creative, automations, and SMS and WhatsApp management, mainly using Klaviyo. It helps ecommerce brands manage email and other owned channels to keep customers and increase repeat revenue.
- Built for
- The Klaviyo partner listing covers brands from $1M to over $500M in revenue on Shopify, Shopify Plus, BigCommerce, Magento, Salesforce Commerce Cloud, WooCommerce, Miva and Prestashop, across retail, hospitality, media and B2B verticals.
Products
- CRM Audit & Roadmap Audit of CRM performance across flows, campaigns, segmentation and deliverability, with a prioritised action roadmap.
- CRM & Customer Retention Strategy Strategy covering segmentation, lifecycle mapping, personalisation and KPI planning to support retention and lifetime value.
- Creative & Execution Creative for email, SMS and owned channels, including campaign concepts, templates, copywriting and localisation.
- Automations & Flows Automated journeys for welcome, abandonment, post-purchase and winback, tuned for timing, messaging and segmentation.
- SMS & WhatsApp Management Management of SMS and WhatsApp programmes, integrated with email.
- Advanced Customer Retention Retention systems using cohort analysis, predictive insights and personalised lifecycle marketing.
Integrations
Buyer notes
- Listed in the Klaviyo partner directory at the Elite Master tier.
- Serves regions listed as Australia & New Zealand, North America and Europe; office at 103 Farringdon Rd, London.
- Team of 120+ members speaking 25 languages, working remote and hybrid.
- Offers a free CRM Impact Session that ends with an impact report and prioritised next steps.
From Underground Ecom's own site and Shopify App Store listings, as of 2026-10-20.
Services
- Platforms
- Shopify, Shopify Plus, BigCommerce, Magento, Salesforce Commerce Cloud, WooCommerce, Miva, Prestashop
- Brand size
- $1M - $10M, $10M - $30M, $30M - $100M, $100M - $500M, >$500M annual revenue
- Regions
- Australia & New Zealand, North America, Europe
- Industries
- Hospitality: Wellness & Recreation, Retail: Subscriptions & Digital Goods, Retail: Home & Electronics, Retail: Food & Beverage, Media & Entertainment, Hospitality: Travel & Hotels, Retail: Apparel & Beauty, Hospitality: Food & Beverage, B2B & Professional Services, Retail: Outdoor & Automotive
As listed on Klaviyo's agency directory, Elite Master tier, 2026-11-03.
What services does Underground Ecom offer?
On Klaviyo's agency directory, Underground Ecom lists Implementation & Onboarding, Omnichannel Messaging, Data & Analytics, Growth & Acquisition and AI Strategy & Automation. It says it works with brands with $1M to over $500M in annual revenue, in Australia & New Zealand, North America and Europe. Platforms: Shopify, Shopify Plus, BigCommerce, Magento, Salesforce Commerce Cloud, WooCommerce, Miva and Prestashop.