Best 10 OTP SMS Providers for Small Businesses
Best 10 OTP SMS Providers for Small Businesses — a quick overview of each provider and a checklist to choose the right OTP SMS partner for your business.
Small and growing businesses need a OTP SMS provider that is easy to start with, affordable and supported by real people. Here are 10 options to consider, plus a checklist to pick the one that fits your business.
How we put this list together
We looked at each provider's core offering for OTP SMS, availability for Indian businesses, product breadth, integrations and support options. The list is in no particular order after our own entry. Descriptions are short summaries based on publicly available information — always check current features and pricing directly with each provider.
The list: 10 OTP SMS companies
1 Buddy Infotech Our pick
Priority-routed one-time passwords for logins, sign-ups and payments. WhatsApp, SMS, RCS, OTP, voice, IVR, AI chatbots, business software and digital marketing from Greater Noida, Delhi NCR, with online onboarding across India and 24×7 support.
- Priority Route: Dedicated transactional route, 24×7 including DND numbers.
- Smart Failover: Automatic retry over alternate routes or voice OTP.
- Generate & Verify API: Ready endpoints so you never store OTPs yourself.
- Expiry & Attempts: Configurable OTP length, validity and retry limits.
See OTP SMS by Buddy Infotech · Book a free demo
2 Gupshup
Conversational messaging platform offering WhatsApp, SMS and RCS APIs along with chatbot-building tools. Check whether their plans, onboarding and support suit a small team before you commit.
3 Route Mobile
CPaaS provider offering SMS, WhatsApp, RCS and voice messaging solutions for enterprises. Check whether their plans, onboarding and support suit a small team before you commit.
4 Tanla Platforms (Karix)
Communications platform company whose Karix brand provides SMS, RCS and WhatsApp messaging for enterprises. Check whether their plans, onboarding and support suit a small team before you commit.
5 Kaleyra
Cloud communications provider for SMS, voice and WhatsApp messaging. Check whether their plans, onboarding and support suit a small team before you commit.
6 Twilio
Global cloud communications platform with APIs for SMS, voice, WhatsApp and user verification. Check whether their plans, onboarding and support suit a small team before you commit.
7 Infobip
Global omnichannel communications platform covering SMS, WhatsApp, RCS and voice. Check whether their plans, onboarding and support suit a small team before you commit.
8 Sinch
Global CPaaS company offering messaging, voice and verification APIs. Check whether their plans, onboarding and support suit a small team before you commit.
9 MSG91
Indian communications platform for SMS, OTP, WhatsApp, email and voice. Check whether their plans, onboarding and support suit a small team before you commit.
10 Exotel
Customer engagement platform offering cloud telephony, IVR, SMS and WhatsApp. Check whether their plans, onboarding and support suit a small team before you commit.
How to choose the right OTP SMS provider
- Compliance (TRAI DLT, official WhatsApp/RCS onboarding)
- Delivery speed and reliability
- Rich features: templates, automation, chatbots
- APIs, webhooks and integrations
- Reports and analytics
- Responsive local support and clear pricing
Tips for small businesses
Start with a free demo or trial, begin with one clear use case, and choose a provider that helps with setup and approvals. Avoid long lock-in contracts until you have seen results for at least one month.
Why consider Buddy Infotech?
Buddy Infotech offers OTP SMS with fully online onboarding anywhere in India, 24×7 human support and one partner for messaging, software and digital marketing. Explore OTP SMS or request a free demo.
Frequently asked questions
Which is the best OTP SMS company in India?
The best choice depends on your volume, use case, budget and support needs. Shortlist two or three providers from this list, take demos and compare delivery, features and total cost.
How do I compare OTP SMS providers?
Compare compliance, reliability, features, integrations, reporting, support quality and transparent pricing. Ask each provider for a demo with your real use case.
Is Buddy Infotech included because it published this list?
Yes — this article is published by Buddy Infotech, and we list our own service first. The other providers are included to give you a broad view of the market.