Bulk SMS Service

Our bulk SMS service can easily send bulk text messages in seconds directly to customers.

Trusted Bulk SMS Service Provider

Esendex’s Bulk SMS Marketing Service is Trusted by Some of The Biggest Brands in The World!

Boost Your Business Growth with Bulk SMS

Nearly 90% of people always have their phone within arm’s reach, according to the Cellular Telecommunications and Internet Association (CTIA). Considering that people of all ages and other demographics are smartphone users, it’s no wonder that texting (i.e., SMS messaging) is the preferred method for marketing and communication.

Bulk SMS is the best way for businesses to connect with customers via text. It involves sending hundreds or even thousands of text messages instantly using an SMS service. These SMS services and bulk texting capabilities allow businesses to streamline their SMS campaign efforts while saving money, resources, and time. Please keep reading to learn how your business can boost its growth and take advantage of these benefits.

Bulk SMS services allow your business to reallocate resources, focusing less on the mechanics of sending the messages and more on the essential parts, like how to best connect with your customers.

What is Bulk SMS?

Bulk SMS refers to sending text messages in groups instead of individually. These groups contain thousands of text messages, each with a specific recipient. The recipients are all subscribers who have agreed to receive messages from businesses.

This is a critical component of any SMS messaging, including bulk SMS. Businesses must receive consent from consumers before adding them to contact lists and sending out messages. Failure to do so will result in fines from regulatory agencies and a potential suspension with your bulk SMS service provider.

Benefits of Bulk SMS Texting

Bulk SMS marketing has a wide variety of benefits, some of which we’ve already covered. These services streamline services by Bulk automating SMS campaigns, which allows you to schedule and adjust your campaigns in advance. In turn, this means you can invest fewer resources and time in creating and sending messages and instead redistribute this investment in analyzing the campaigns and creating more effective ones.

This service also means you can reach out to more customers or users, providing your business with scalability. No matter how large your business or your customer base grows, bulk SMS providers can continue to support your future marketing needs.

What Can Our Bulk SMS Sender do for Your Business?

Anything is possible when you combine our bulk sms messaging service with these excellent features! Our bulk texting service delivers the tools you need to boost company sales, revenue, and engagement and stay connected with your customers.

Short Code Texting Service

Send mass text messages to customers fast from a memorable 5-6 digit phone number.


Send cool pictures, emojis, GIFs, links to your website, and even audio messages.

Long Code Texting Service

Send text messages from a local phone number that your recipients will know and trust.

10DLC Capable

Get a new SMS long code solution for all of your U.S. A2P text messaging use cases.

SMS 2 Way

Engage customers by sending & receiving bulk SMS & create powerful conversations.

SMS Appointment Reminders

Reduce missed appointments by sending automated SMS reminders to your customers.

Schedule SMS

Schedule texting campaigns to be sent out at optimal times for higher conversions.

Two-Factor Authentication

Send text messages to users of your application, website, or software to ensure secure logins.


Automate your entire SMS campaign and the response customers receive after replying.

Opt Out Handling

Recipients can easily remove themselves from your SMS campaign with a click of a button.

Number Pooling

Use multiple phone numbers to deliver even more text messages to your entire contact list.

Detailed Reports

Get detailed reports on how many text messages are sent, plus more valuable data.

How Much Does Bulk SMS Cost?

Bulk text messaging APIs and software pricing in the United States vary greatly depending on a bulk SMS sender’s needs. Generally, bulk SMS services offer monthly plans based on how many messages you will send monthly, the total number of contacts, and any other services they offer, such as custom branding or scheduling bulk texts in advance.

The costs can range anywhere from a few cents to a hundred dollars, so it’s crucial to research bulk SMS providers and finds one that works best for your needs. Different providers may have unique features or extras to include in their packages, so comparing bulk SMS services is vital to choosing the best one.

Start Bulk Texting In Minutes

Contact customers individually with our bulk text service. If you have many people (for example, your entire contact list), our programmable SMS API or software can handle it!

Why Use Our Bulk Online SMS Service?

We strive to be the best bulk SMS messaging service in the industry. Our trusted bulk texting service provides quality performance to drive your communication strategy. From integration to your first SMS campaign, we make the entire process uncomplicated.

1. World Class Support

Most business bulk text messaging services don’t have active online support channels customers can speak to when they need it the most, and we understand. That’s why we have 24/7, around the clock emergency support for our bulk message service.

  • Fast Response Times
  • Fast Troubleshooting
  • Chat, Email, & Phone Support

2. Global Texting SMS API

Our bulk SMS sender enables you to leverage your business communication globally without any interruptions. Don’t worry about the distance! Get connectivity in more than 190 countries.

  • Tier 1 SMS Network
  • 99.9% Guaranteed Uptime

3. Government Level Security

Our programmable bulk SMS API and bulk SMS software is 256 Bit Encrypted (typically only reserved for governments and militaries), SOC2 Type 2 Certified, HITRUST Certified. Hardware-based SMS servers are strategically located throughout the US-owned and operated by Esendex.

  • 256 Bit Encrypted
  • HITRUST Certified
  • SOC2 Certified

The Esendex Difference

Since the early 2000s, Esendex has been one of the industry’s most trusted SMS API providers. The truth is we do things differently.

Our vision is to shape your connections to the world through reliable, usable, and adaptable Communication and Data APIs.

24/7 Support – Lowest Pricing Multiple – Service Channels

What Our Customers Have to Say

We’ve been rated 5 out 5 stars on Capterra, GetApp, Google and Facebook – based on 40+ reviews.
We’re a Twilio competitor you can trust to provide you with the best services.

Nearly every industry uses bulk SMS messaging, including hospitality, retail, food service, administration, finance, healthcare, IT, manufacturing, agriculture, real estate, education, and more. Even political and religious organizations increasingly use bulk SMS.

Bulk messaging can be used for various purposes, which is part of why it is so helpful for businesses. In recent years, marketing, reminders, reservations, updates, and password authentication are just a few ways businesses have used SMS messaging. Click to explore all industries.

Below are some examples of bulk SMS messaging and how industries leverage them to boost their business.


“Ready for your checkup? This is your annual reminder to schedule an appointment with Dr. Xavier.”


“Due to expected inclement weather, the school will be closed tomorrow. Students should enjoy their snow day but be prepared to resume activities next week.”


“Are you registered to vote? The midterm elections are quickly approaching. Find your polling place and learn about your regional candidates.”


“Good morning! We are excited to announce our third annual Halloween office party, scheduled for 12 – 3:00 on 10/29. Contact Jean for more details.”

Keep in mind these are just a few examples. Other industries use bulk messaging for other uses beyond these.

How Many Bulk Texts Can I Send For Free?

Specific text limits will depend on your bulk SMS sender. For example, Esendex’s SMS Notify! API only offers trial accounts to vetted prospective clients. This means you can never exceed your limit and can only send text messages to your phone number for testing purposes.

Before signing up with a specific provider, asking about text limits, uptime guarantees, and data security is essential. Your business should rest assured that your messages will be delivered on time, every time with Esendex. Your business should also ask about SMS pricing. Technically, there are no FREE bulk SMS online providers. Instead, a small fee is associated with each text, so businesses only pay for what they need.

The best service providers offer volume discounts, price-match guarantees, and custom quotes. Additionally, you should check to ensure there are no associated contracts and research to ensure providers don’t spring hidden fees on their customers.

What to Look for in a Bulk SMS Service

Businesses should carefully research bulk SMS online providers before signing up for any service to ensure the service fits correctly. You should ensure the service can meet your current needs while ensuring there are provisions for future growth.

Esendex’s SMS API allows businesses to send and receive bulk messages globally. Besides being easy to integrate and program, our API offers a variety of benefits and transparent pricing. Additional benefits include 24/7 emergency support and chat, email, or phone troubleshooting.

Businesses can also be reassured that Esendex uses a Tier 1 SMS network and offers a 99.9% uptime guarantee. We also safeguard our customers’ privacy: our API is 256-bit encrypted, SOC2 Type 2 and HITRUST certified, and all US-owned and operated. If you want to learn more, book a meeting to discuss capabilities and benefits, demo and trial options, and pricing.

The specific way your business can send bulk messages will depend on your service provider. Each provider’s software or service may differ slightly. However, each will follow the same basic steps outlined below:

1. Integrate your new SMS API with the help of a developer or programmer. Typically, this takes only a few hours; you can begin sending bulk SMS campaigns within the same day.

2. Upload your contact lists with subscribers who have given your business permission to send them messages. Split the contact lists according to demographics or other campaign groupings.

3. Craft your bulk SMS message according to the needs of your business and the group to which you plan to send the message. The message should be short but have an actionable command.

4. Select the specific users you want your latest campaign to send to. This should be a targeted audience so that the message is as effective as possible, with the highest return on investment.

5. Schedule your campaign to send either immediately or at a future date and time. Like the audience, the time should be targeted to elicit as much response as possible.

6. Review your reports in real-time, along with campaign analytics, to see how your messages are performing. This will help you create even more effective campaigns in the future.

Products for a range of use cases


Texting API designed to send & receive SMS & MMS globally using a short code or 10DLC number.

SMS Software

Easy to use SMS software that can send & receive SMS & MMS using a short code or 10DLC number.

Voice Broadcast

Powerful voice API that sends mass automated phone calls quickly to mobile & landline devices.

Phone Verification

Verify mobile & landline numbers, find service providers, & define time zones to restrict calling.

Let’s start sending, together.