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Clerk Chat Your Modern Business Phone

Empower your team across Slack and Microsoft Teams to instantly send and receive SMS, WhatsApp and 2FA codes. Eliminate the need for outside platforms and enjoy consolidated communication.

How it works

Built for Slack & Microsoft Teams

Your business already lives and plays inside of Slack or Teams, bring the power of real-time, multiplayer internal communication to your customer base.

Step 1

Connect Your Phone

Already have a number? Keep your calling plan with your existing provider. Or grab an entirely new one with us!

Step 2

Sync Contacts

Bring your contacts from Salesforce, Shopify, Google and more. Immediately allow them to start texting your business.

Step 3


As messages come in, watch as your team shares context and responds in real-time to customers.

Ready to transform your business?

Install Clerk Chat for Slack or Teams and get a demo number in seconds.

Clerk Webapp

Your Omnichannel Solution

Using the same number, you can instantly send and receive messages across multiple-channels. You don’t need a developer, extensive Zapier connections or integrations.


Messages flow into Slack and Teams allowing your team to respond asynchronously or in real-time. It’s a shared inbox, without the need for an entirely new service.


Activate or bring your existing WhatsApp for Business number and give customers the most used international channel to reach you on.


Looking to share verification codes? Our numbers just work across all online services. From Google, Apple, Microsoft, Quickbooks to banks and everything in between.

Text From Your Existing Number

Clerk works with all carriers. No need to port or disrupt your existing service.

VoIP / Landline

Enable SMS capabilities on your existing VoIP or a landline.


Enable your Twilio phone number and consolidate communication.

Zoom Phone

Host the SMS portion of your Zoom number and use it in Slack or Teams.

Microsoft Teams
Microsoft Teams

Enable your Microsoft Teams phone number and consolidate communication.

Google Voice
Google Voice

Consolidate your google voice conversations in Slack or Teams.


RingCentral integration brings your number natively into Slack or Teams.

Industries that love Clerk

Start texting your customers today. Keep your company’s text messages organized and secure with Clerk.


Reach your customers faster and grow your customer base more efficiently. Close sales by answering customer questions quickly.

Law Firms

Attorneys, paralegals, and assistants can schedule and confirm legal appointments, submit document requests, and confirm court dates.

Insurance Agencies

Send text messages to reach your team on the mobile devices that they are already using.

Clerk SMS
Real Estate

Connect with prospects and close more deals. Create a better customer experience.

Support Teams

Increase efficiency of your support teams and handle multiple customer issues simultaneously.

Medical Offices

Send SMS to confirm appointments, change treatments, or ask questions. SMS enable your business phone number, while keeping the existing voice service intact.

Sync your Contacts

We've built dedicated integrations to help you import your contacts from the leading systems such as Hubspot, Google, Salesforce and CSV...

Get Started Free

Use Salesforce and Slack together to manage your conversations.

Google Contacts
Google Contacts

Import your contacts directly from Google contacts.


Load your Hubspot contacts and lists and start texting your customers.

Google Sheets
Google Sheets

Use sheets as a universal addressbook. Import CSV, share with teammates...

Clerk Apps

We've built native integrations into the leading applications such as Slack, Microsoft Teams, and Salesforce. Get verification codes using our non-voip numbers, and leverage the power of SMS wherever your team lives.

Slack SMS
Slack SMS

Bring your business phone to Slack and start text messaging your customers in real-time.

Find out more
Microsoft Teams
Microsoft Teams SMS

Send and receive text messages with your existing contacts, and leads natively in Microsoft Teams.

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Clerk MFA

Receive your account verification codes easily, and securely from all online services.

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Clerk Email
Salesforce SMS

Send and receive text messages with your existing contacts, leads natively in Salesforce.

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Trusted by 500+ brands

From startups to the Fortune 500, Clerk is the most visual and simple way for teams to communicate via text message in Slack and Microsoft Teams.

Samsung Next
2nd Address
Jungle Scout

Helpful answers

We know there's a lot to learn and read about all that Clerk can do. Here are some of the most frequently asked questions.

Optimize your landline phone number by enabling text messaging in minutes. Once enabled you can start sending and receiving SMS and MMS to customers in realtime.

Yes. Clerk allows you to have a unique phone number in every Slack channel.

Absolutely. Please reach out to and we will get back to you asap.

Clerk natively supports group messages. Group messages are a fast and convenient way to organize groups, set up events, or to send the same message to multiple people.

SMS standard has a character limit of 160 characters. Messages using non standard characters such as emojis are limited to 67 characters.

Clerk has a number of unique integrations with tools such as Hubspot, Gsuite, Salesforce.