Customer.io Customer List

Do you sell to companies who use Customer.io? Do you have a product that works with Customer.io? Do you offer Customer.io consulting and implementation services? If you do, then you’ll love our actively-managed database of Customer.io users.

926 Companies
  • Company Name
  • Website
  • Phone Number
  • Mailing Address
  • Industry
  • Employee Range
Last Updated :
BY MARKETING LEADERS

"After piloting various data vendors, it was easy to see that ReadyContacts is a cut above."

Anna Jensen
Anna Jensen Director of Marketing, DigitalShadows

TRUSTED BY LEADING COMPANIES

salesforce
gartner
ca technologies
equifax
IBM
zuora

Sample Records of the Companies that use Customer.io :

Company Name Website Industry Country Company Size
HelloPrint www.helloprint.com Printing Netherlands 1.3k to 13k
Curology curology.com Skincare United States 1.3k to 13k
Tribe www.tribe.so Fitness United Kingdom 1.3k to 13k
Oura ouraring.com Wearables Finland 100 to 900
Natura www.naturacosmeticos.com.br Cosmetics Brazil 1k to 5k
Vend www.vendhq.com Retail New Zealand 100 to 900
Printful www.printful.com Print on Demand Latvia 1k to 5k
Canva www.canva.com Design Australia 1k to 5k
Klaviyo www.klaviyo.com Marketing United States 1k to 5k
Ometria www.ometria.com Marketing United Kingdom 100 to 900
Printify www.printify.com Print on Demand Latvia 100 to 900
Brex www.brex.com Fintech United States 100 to 900
Culture Amp www.cultureamp.com HR Tech Australia 100 to 900

Get a targeted slice of Customer.io customers for your campaigns

How do we build this data

At Ready, we use state-of-the-art software and context-driven human research to identify and track companies that use Customer.io across global markets. We use a multi-step process to validate and weed out false positives, and we refresh our data every 90 days.

How to customize this data for your needs:

You can requested a customized slice of our full Customer.io customers database by sharing filters for geography, industry, size and other specific needs you may have. We also identify specific decision makers based on titles & roles.

Customer.io Customers Coverage

If you're wondering, "How many customers does Customer.io have?" we've got you covered. We track Customer.io customer insights globally and across verticals. Here’s a quick snapshot of the coverage we have for a list of companies that use Customer.io and where they belong.

Verified Stamp Request a customized sample for this criterion

Customer.io customers Worldwide

Customer.io customers by US States

Customer.io customers by Metro Areas

Customer.io customers by Industry

Here’s why our data is better

We put freshness & accuracy ahead of everything here at ReadyContacts and it shows in our data that is software-powered & human-curated.

  • Freshness

    Our data is always freshly validated prior to delivery.
  • Accuracy

    Our multi-step software & human review process ensures the highest accuracy.
  • Targeting

    We are able to find highly specific target audiences for your needs.
  • Comprehensive

    We find every prospect out there for your campaign specification.
  • Intelligence

    Our datasets come backed with detailed & actionable intelligence.
  • Guarantee

    We promise 90% accuracy across all datasets & stand by it.

How to get a list of Customer.io customers from Ready

1

Share your spec &
request a sample

Submit your specifications for a Customer.io customer list based on your sales & marketing campaign needs.
2

Get a personalized
sample & counts

Ready creates a freshly validated sample dataset of Customer.io customers with contacts & shares the overall counts for your specification.
3

Finalize specs &
purchase dataset

Once you review the sample, you can finalize any tweaks to the dataset of companies using Customer.io with your own specifications and purchase the full set of records or a part of them.

Customer.io Customers List: FAQs

What is Customer.io?

Customer.io is a powerful customer engagement platform that helps businesses automate and personalize their marketing communications. It enables companies to send targeted emails, push notifications, and SMS messages based on user behavior and data. Customer.io integrates with various data sources, allowing businesses to create sophisticated, data-driven marketing campaigns that nurture leads, retain customers, and drive conversions.

How many customers does Customer.io have?

Customer.io serves approximately 2,500 customers worldwide. This growing customer base reflects the platform's effectiveness in meeting the diverse needs of businesses across various industries and sizes.

Who uses Customer.io?

Customer.io is used by a wide range of businesses, from startups to enterprise-level companies. Its versatile platform caters to marketing teams, product managers, and customer success professionals who want to create personalized, automated communication strategies. Companies looking to improve customer engagement, increase retention rates, and drive growth through data-driven marketing often turn to Customer.io for its robust features and flexibility.

Which companies use Customer.io?

Many notable companies across various sectors use Customer.io to power their customer communication strategies. While we don't disclose specific client information, the Customer.io client list includes businesses from tech startups, e-commerce platforms, SaaS companies, and established enterprises. These organizations leverage Customer.io's capabilities to deliver targeted messages, improve user onboarding, and enhance overall customer experience.

What industries is Customer.io most popular in?

Customer.io has gained significant traction in several industries, particularly those that rely heavily on digital engagement and customer relationships. Some of the sectors where Customer.io is most popular include:

  1. Software as a Service (SaaS)
  2. E-commerce and retail
  3. Financial technology (FinTech)
  4. Media and publishing
  5. Education technology (EdTech)
  6. Travel and hospitality
  7. Health and wellness
These industries benefit from Customer.io's ability to create personalized, automated communication flows that enhance user experience and drive business growth.

What are some popular alternatives to Customer.io?

While Customer.io offers a unique set of features, there are several alternatives in the market. Some popular options include:

  1. Mailchimp
  2. HubSpot
  3. Intercom
  4. Klaviyo
  5. ActiveCampaign
  6. Braze
  7. Iterable
Each of these platforms has its own strengths and may cater to different business needs. However, Customer.io stands out for its flexibility, powerful segmentation capabilities, and ability to create highly personalized customer journeys.

What is to be expected from Ready's Customer.io client list?

Ready's Customer.io client list is a valuable resource for businesses looking to leverage the power of targeted customer communication. This curated list provides insights into companies across various industries that are successfully using Customer.io. By accessing this list, you can expect to:

  1. Gain inspiration from successful Customer.io implementations
  2. Identify potential partners or competitors using the platform
  3. Understand industry trends in customer engagement strategies
  4. Discover new ways to leverage Customer.io for your business
  5. Find case studies and success stories to inform your own marketing decisions
Remember that while this list offers valuable insights, it's important to tailor your Customer.io strategy to your specific business needs and audience preferences.


The numbers above are continuously changed. For the latest numbers, feel free to contact our team.

Why Ready?

1

Quality of the data changes campaign outcomes. That is why customer trust Ready.

Anna Jensen testimonial

Anna Jensen

Director Marketing of Digital Shadows

The quality of the contact data is well above industry average and our sales development teams have seen great success tapping into new geos using lead data from ReadyContacts. Their customer support and responsiveness also making working with them extremely easy.
Jim Everidge testimonial

Jim Everidge

Co-Founder & CEO at rapidLD

I have been pleasantly surprised by the quality of the leads purchased from ReadyContacts. The team there has been extremely easy to work with. They have been very responsive and stand by the quality of their leads. This allows my team to work in a very focused manner when identifying new opportunities in the market.
2

Speed is of the essence when revenue targets are on the line. Ready ensures it.

Katie May testimonial

Katie May

Founder & CEO of ShippingEasy

Ready Contacts has been a great partner since we started ShippingEasy. They are wickedly fast and very open to feedback on lead quality, etc as we embark on new campaigns. We have found their leads to be higher quality than any other vendor we have tried. Their team is a pleasure to work with and always responsive.
3

When specialized datasets are needed, customers rely on Ready again & again.

James Lepper testimonial

James Lepper

Managing Director at Prospect Research

We had a need for a very specialised dataset to launch a campaign. I approached Ready Contacts to see if they could provide this dataset having tried other providers without any success. ReadyContacts rose to the challenge and provided us with a reliable dataset that met our criteria and allowed us to take on a campaign that we would otherwise have had to abandon.
4

Customers value Ready's responsiveness & professionalism.

Allison Parker testimonial

Allison Parker

Development Director of Elemental Machines

ReadyContacts consistently does an exemplary job of building campaign-specific marketing data sets, and is always unfailingly professional and responsive to work with.
Alex Mitchell testimonial

Alex Mitchell

Founder and CEO of StepOne.Inc

Ready was great to work with. They took the time to understand our needs to generate the best lead list for our requirements.
5

Fair pricing helps Ready build long term relationships.

Meyleen Biechler testimonial

Meyleen Biechler

Marketing Communications, Director of idengines

ReadyContacts is great to work with and always produced the results we wanted. They are fair with their pricing & always wanted to make sure we get the value for our investment.
6

Customers consider Ready as a true partner & highly recommend us.

kyle testimonial

Kyle Martinowich

Sales Director of SmartlingSmartling

ReadyContacts has been instrumental in our demand generation strategy at Smartling. ReadyContacts continues to clearly understand our ideal customer profiles and buyer personas to curate accounts & contacts. ReadyContacts ability to deliver high quality leads while being flexible with our timelines has been instrumental in growing our pipeline. They have been a true partner!
Katie McEachern testimonial

Katie McEachern

Global Marketing Director at pega

ReadyContacts has been an extremely reliable source to get embedded contact for our key targets accounts for marketing campaigns. I would recommend them without reservation.