Impactful Business SMS messaging

Strengthen the connection between you and your customers with personalised texts that build engaged customer conversation, improve customer relationships and increase revenue.

What makes our business SMS messaging different?

Direct Connections

We only have direct connections to major mobile networks; messages are sent using the fastest and highest quality routes, which is why 90% of messages are delivered within 5 seconds.

Personalisation at Scale

Upload your own customised data, short URLs, and dynamic fields to scale SMS messaging.

Priority Sending

Send faster when it matters the most. Message prioritisation automatically boosts the send speed of your time-sensitive texts like authentication or a customer support messages.

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A better SMS experience for your customer

dentist appointment reminder text message
Remind customers so they never miss a thing

Whether it’s for house viewings, delivery, payments, doctors’ appointments or reservations, 88% of consumers rely on automated SMS reminders and confirmations.

  • Send personalised confirmations
  • Reduce no-shows and increase debt collection
  • Automated texts at scale and save time
  • Schedule messages for the right moment
  • Ensuring customers have important details when they need them.
Send marketing campaigns that increase ROI

SMS cuts through busy inboxes and with open rates up to 98%, it’s almost guaranteed to be seen. Enhance your promotions, events, and campaigns by getting in front of customers at the right time.

  • Use dynamic fields and customised data to personalise texts
  • Send transactional, marketing or service type messages
  • Text-to-landline sends SMS and reads out the messages if you only have a contact’s landline.
  • Short URL links reduce character count, so more personalised content can be included. 
sms example with a vip discount code
graphic showing an sms survey requesting feedback with a rating from 1 to 5
Capture feedback to improve relationships

Send short and engaging SMS surveys after key interactions such as a purchase, enquiry or support case.

It’s a quick and convenient way to gather both quantitative and qualitative insights that help you improve your products, services and customer experience.

Minimise wait times and solve problems fast

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  • Hold multiple conversations in real time through our online conversation portal
  • Use SMS message templates to answer common FAQs quickly and consistently
  • Fast, reliable and secure message delivery
  • Message prioritisation automatically boosts the send speed of your time-sensitive texts
  • Send globally to more than 200 countries in seconds.
sms example with a vip discount code
graphic showing an sms survey requesting feedback with a rating from 1 to 5
Build trust with compliant messages

Whether it’s for appointments, house viewings, delivery or reservations, 88% of consumers rely on automated SMS reminders and confirmations.

  • Smooth sender ID registration process
  • Automatically restrict messages to being delivered within pre-determined hours
  • Reporting of failed sends due to non-compliance or banned words
  • Opt out

Make your budget go further

“We’ve seen a big uptick in our numbers, but more importantly, we’re also providing better services and tools to our customers.”

Esendex, your reliable business messaging partner

Trusted by thousands of businesses, Esendex delivers the scale, experience, and support needed to power reliable SMS communication at every stage of the customer journey.

20+ years experience

We’ve been helping businesses send text messages to customers for over two decades. Our team brings in-depth knowledge and technical expertise to every solution we deliver..

46,000+ customers

Organisations of all types and sizes trust Esendex to power their communications. From fast-moving retailers to highly regulated sectors, we support a wide range of messaging needs.

5B+ messages per year

Our platform is built for high performance at scale. Every year, we deliver billions of SMS messages with the speed, security and reliability our customers rely on.

Security and compliance

We’re ISO 27001 certified and fully GDPR compliant. From data protection to message delivery, security is at the core of everything we do.

Global reach

Send messages worldwide with confidence. Our direct carrier connections and in-country knowledge ensure reliable delivery across borders.

Flexible integration

Use our intuitive web platform or connect via API. Whether you’re sending one-off messages or building complex automations, we give you the flexibility to work your way.

Let’s start sending, together.

Messaging solutions for your sector

From customer updates to appointment reminders, our powerful messaging platform is helping businesses across sectors communicate more effectively. See how it’s making an impact in businesses like yours:

Person next to mobile phone and and an image of discount clothing tags.

Send order confirmations, delivery updates, and time-sensitive offers that customers actually see.

With open rates up to 98%, SMS helps retailers cut through the noise and drive real results — from cart recovery to loyalty program engagement.

Deliver secure, time-critical messages like fraud alerts, one-time passwords, and appointment reminders.

SMS supports compliance needs while helping reduce missed communications and inbound call volume.

A woman working in healthcare using mobile phone.

Reduce no-shows and improve patient satisfaction with automated appointment reminders, test result notifications, and care follow-ups.

SMS helps healthcare providers reach patients quickly and respectfully.

// The POST v1/messages endpoint allows you to send a message to a single contact in one request.
// The message can also be sent via different channels; including SMS, Whatsapp and RCS.

curl -X POST 'https://api.esendex.co.uk/v2/messages' -H 'X-Api-Key: {{your-key-here}}' -H 'Content-Type: application/json' -d

{
  "accountReference": "EXxxxxxxxx",
  "name": "name",
  "characterSet": "characterSet",
  "channel": "channel",
  "from": "from",
  "validity": "2025-07-30T09:38:04.4517739+00:00",
  "messageType": "messageType",
  "body": {
    "text": "text",
    "templateId": "templateId"
  },
  "recipients": [
    {
      "msisdn": "msisdn",
      "variables": {},
      "metaData": {}
    }
  ],
  "addressBook": {
    "contacts": [
      {
        "id": "id"
      }
    ]
  },
  "metaData": {}
}

Let’s start sending, together.

Insights