Grizzly SMS
Grizzly SMS is a Hong Kong-registered platform selling one-time-use virtual phone numbers from 100+ countries for SMS verification across 2,300+ services, serving individuals, social media marketers, and developers via a self-serve web app, Android app, Telegram Mini App, and a REST API.
- Company typePrivate
- Founded2018
- HeadquartersHong Kong, Hong Kong SAR China
- Headcount11–50
- GTM typeB2C
- OfferingSoftware
What Grizzly SMS does
Grizzly SMS is operated by Grizzly Corp Limited, a privately held company registered in Hong Kong (Business Registration No. 80665761) and headquartered in Tsim Sha Tsui. Founded in 2018, the company runs a cloud-based virtual phone number platform that delivers one-time-use temporary numbers from more than 100 countries for SMS-based account verification across 2,300+ services and applications. The underlying stack centers on a REST API compatible with the sms-activate protocol, enabling programmatic number acquisition, real-time SMS delivery, balance management, and auto-refund if no SMS is received within 20 minutes. Distribution is multi-channel: a self-serve web platform (grizzlysms.com), an Android app on Google Play, a Telegram Mini App, and a Model Context Protocol (MCP) server exposing the API to AI agents on GitHub.
The company monetizes primarily on a transactional, pay-as-you-go model with country- and service-variable unit prices ranging from $0.04 (budget countries such as Colombia and Grenada) to $30+ (premium markets such as Australia); customers pay only for numbers that successfully receive SMS codes. A secondary recurring revenue stream comes from reselling partner software licenses, notably Telegram Expert at $120/month or $550/year. Customer segments are long-tail: individual users seeking privacy and anonymity, social media marketers, traffic arbitrage specialists and CPA networks, and developers integrating bulk verification via API. Two referral programs — a Developer program (5%+ of user turnover, requiring 5+ users) and an Arbitrage/CPA program — institutionalize partner-led acquisition. In August 2024, the company discontinued Russian phone numbers and restricted access for users in the Russian Federation to comply with Russian law.
Grizzly SMS firmographics
Firmographics- Name
- Grizzly SMS
- Legal name
- Grizzly Corp Limited
- Website
- https://grizzlysms.com
- Company type
- Private
- Founded year
- 2018
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Grizzly SMS is a Hong Kong-registered platform selling one-time-use virtual phone numbers from 100+ countries for SMS verification across 2,300+ services, serving individuals, social media marketers, and developers via a self-serve web app, Android app, Telegram Mini App, and a REST API.
- Ownership category
- akta.pro rank
Grizzly SMS industry classification
Industry- Product category
- SMS Verification Services
- NAICS
- Wired and Wireless Telecommunications (except Satellite) (5171), Telecommunications Resellers (517121)
- SIC
- Radiotelephone Communications (4812), Telegraph & Other Message Communications (4822)
- akta.pro primary industry
- SMS/RCS Messaging Platforms (BPAMACAF)
- akta.pro secondary industry
- SMS/MMS & Messaging Marketing Services (Text, RCS, WhatsApp/OTT) (MPAAAIAB)
Keywords
Where Grizzly SMS is headquartered
LocationHeadquarters
- HQ city
- Hong Kong
- HQ country
- Hong Kong SAR China
- HQ region
- Asia
Offices1 record
Markets served
Grizzly SMS business model
Business model- GTM type
- B2C
- Offering type
- Software
- Cost components
- Technology or R&D, Infrastructure, Operations, Marketing or Sales, Personnel
Revenue model
- Virtual Number Sales: Users pay per virtual phone number purchased. Prices vary by country and service, ranging from $0.04 to $30+ per number. Only charged for numbers that successfully receive SMS codes.
- Software Licenses: Partner software products sold directly through platform (e.g., Telegram Expert licenses at $120/month or $550/year).
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Virtual Numbers (Variable by Country/Service) |
| Subscription | Pay-as-you-go | Minimum Deposit |
| Subscription | Monthly | Partner Software Licenses |
Go-to-market motion2 records
Distribution channels5 records
Marketing channels6 records
Grizzly SMS product offering
Product offeringCore offering
Grizzly SMS provides temporary virtual phone numbers from 100+ countries for SMS verification across 2,300+ services and applications. Users purchase one-time-use numbers priced from $0.04 to $30+ that receive OTP/SMS codes within a 20-minute window, with automatic refunds if no message arrives. The platform is complemented by a REST API compatible with the sms-activate protocol, mobile apps, a Telegram Mini App, and a partner software marketplace for mass registration tools.
Product overview
Grizzly SMS is a virtual phone number platform providing temporary numbers from 100+ countries for SMS verification across 2,300+ services. The core offering consists of the Grizzly SMS Platform for purchasing one-time-use virtual numbers and the Grizzly SMS API for programmatic access. The ecosystem includes two referral programs (Developer and Arbitrage) for partners, a partner software marketplace selling tools like Telegram Expert for mass account registration, and mobile access via Android App and Telegram Mini App. All components are designed to work together through the API.
Differentiator
Problem solved
Functional benefit
Brands
- Telegram Expert: Partner software for mass registration of Telegram accounts - a comprehensive toolkit for working with Telegram including account registration, message sending, and audience gathering features.
- TG-GIANT
Products and services
- Grizzly SMS Platform International virtual phone number platform for receiving SMS verification codes across 2,300+ services. Provides one-time-use temporary numbers from 100+ countries with 20-minute activation windows and automatic refunds if no SMS is received. Used by individual users, marketers, and developers needing phone verification for account creation.
- Grizzly SMS API Public REST API for automating SMS verification number purchases and management. Endpoints support getNumber, activation status, balance requests, price queries, and active activation listing. Compatible with the sms-activate API protocol and includes an MCP Server for AI integrations. Designed for developers and bulk buyers needing programmatic access.
- Grizzly SMS Android App Mobile application providing Android users with on-the-go access to Grizzly SMS virtual number purchase and SMS code reception. Available via Google Play Store.
- Grizzly SMS Telegram Mini App Telegram-based mini application accessed via @GrizzlySMScom_bot that allows users to purchase and receive virtual SMS verification numbers without leaving the Telegram interface.
- Partner Software Marketplace Marketplace platform for purchasing third-party mass registration software from Grizzly SMS partners. All listed software is fully compatible with the Grizzly SMS API and includes automatic account registration programs for various services.
- Telegram Expert Partner software sold via Grizzly SMS platform for automated mass Telegram account registration and management. Features automatic registration with built-in GrizzlySMS registrar, neural network-based name generation, audience gathering with gender detection, bulk messaging, and account management. Licensed at $120/month or $550/year.
Quantifiable outcome
- Minimum number availability for mass registrations
- +1 more outcomes
Companies that use Grizzly SMS
Customer profileNamed customers3 records
Segments3 records
Ideal customer profiles3 records
Grizzly SMS technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration2 records
AI capability3 records
Feature3 records
Grizzly SMS partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core.
- Telegram Expert (BLB.Team)coreTelegram Expert is a comprehensive Telegram automation toolkit featuring automatic account registration, bulk messaging, audience gathering, and account management. Integrates built-in GrizzlySMS registrar with automatic refunds for 2FA numbers. Available on Grizzly SMS as a software partner with exclusive discounts for users.
- Developer AffiliatescoreSoftware developers whose users register accounts with virtual numbers can earn percentage (starting at 5%) of their users' turnover through referral program. Developers must have at least 5 users of their software to participate.
- CPA Networks and Traffic ArbitratorscoreTraffic arbitrage specialists and CPA networks can earn percentage of turnover of users who sign up through referral links. Contact via feedback form or Telegram @vipGrizzly to join.
Scale indicators5 records
Recent moves6 records
Expansion highlights6 records
Grizzly SMS competitors and assessment
Company assessmentDirect peers
- Tiger SMS: Virtual number rental service for SMS verification across many countries and services. Offers comparable pricing, similar self-serve purchase flow, and serves the same user base of marketers and developers.
- SMS Hub: Provides one-time-use virtual numbers for SMS verification across numerous services and countries. Competes head-to-head with Grizzly SMS in price-sensitive, pay-as-you-go account-creation workflows.
- SMS-Activate: Direct competitor offering temporary virtual phone numbers for SMS verification across global services. Grizzly SMS's API is explicitly built to be compatible with SMS-Activate's API protocol, making it the closest substitute in product, pricing model, and target customer.
- 5SIM: Virtual phone number service for SMS verification with a comparable country/service coverage and pay-per-number pricing model. Targets the same segments — individual users, marketers, and developers — for one-time SMS code reception.
- SMSPool: Provides temporary phone numbers from multiple countries for SMS verification, with API access and a similar low-cost per-number model. Operates in the same niche with overlapping inventory across popular services.
- SMS-man: Long-established SMS activation service with broad country coverage and API support. Directly competes with Grizzly SMS in pay-per-number virtual number sales to both individual users and bulk developer customers.
- SMSBower: Virtual SMS verification number provider with coverage of multiple services and countries. Targets the same marketer/affiliate audience using virtual numbers for bulk account registration.
- Receive-SMS-Online.info: Free/public virtual number listings for SMS verification. While Grizzly SMS is paid and API-driven, this service competes for the same low-end individual users seeking free verification numbers.
Broad incumbents
- TextNow: Broader consumer app providing free US/Canada phone numbers for calling, texting, and verification. A broader incumbent in the virtual-number-for-verification space, with a wider consumer product set than Grizzly SMS.
- Hushed: Privacy-focused second phone number service for calling, texting, and account verification across multiple countries. Serves overlapping privacy-conscious users but with longer-term subscriptions rather than pay-per-activation.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
Grizzly SMS social profiles
Digital presenceGrizzly SMS financial estimates
Financial estimateRevenue estimate
Valuation estimate
Grizzly SMS leadership team
Management profileNumber of profiles
Grizzly SMS funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Grizzly SMS M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Grizzly SMS
What does Grizzly SMS do?
Grizzly SMS provides temporary virtual phone numbers from 100+ countries for SMS verification across 2,300+ services and applications. Users purchase one-time-use numbers priced from $0.04 to $30+ that receive OTP/SMS codes within a 20-minute window, with automatic refunds if no message arrives. The platform is complemented by a REST API compatible with the sms-activate protocol, mobile apps, a Telegram Mini App, and a partner software marketplace for mass registration tools.
Is Grizzly SMS a public or private company?
Grizzly SMS is a private company. It is classified as unknown and is currently operating.
When was Grizzly SMS founded?
Grizzly SMS was founded in 2018. It employs 11 to 50 people.
Where is Grizzly SMS based?
Grizzly SMS is headquartered in Hong Kong, Hong Kong SAR China, in the Asia region.
How does Grizzly SMS make money?
Two revenue lines are on record. Virtual Number Sales are the primary driver. The others are software Licenses.
Who are Grizzly SMS's main competitors?
Direct peers on record are Tiger SMS, SMS Hub, SMS-Activate, 5SIM, SMSPool, SMS-man, SMSBower and Receive-SMS-Online.info. Broad incumbents are TextNow and Hushed.
Does Grizzly SMS have an API?
Yes. Public REST API for automating SMS verification number purchases and management. API is compatible with the sms-activate API. Endpoints include: getNumber, getNumberV2, activation status management, balance request, current prices (v1/v2/v3), active activations list, and OpenAPI. All requests require api_key parameter. Supports provider filtering and price limits (maxPrice parameter). Balance is charged only for received codes; auto-refund if no SMS within 20 minutes. Documentation URL: https://grizzlysms.com/docs. MCP Server for AI available at https://github.com/GrizzlySMS-Git/grizzly-sms-mcp. Developer documentation is at grizzlysms.com/docs.
What industry is Grizzly SMS in?
Grizzly SMS's product category is SMS Verification Services. Its primary akta.pro industry code is BPAMACAF, SMS/RCS Messaging Platforms, with a secondary code of MPAAAIAB, SMS/MMS & Messaging Marketing Services (Text, RCS, WhatsApp/OTT). Its NAICS code is 5171 and its SIC code is 4812.