What Whistle does

Whistle, operating under the brand name Ananta and legally constituted as WValue Martech Private Limited, is an India-based A2P (Application-to-Person) enterprise messaging platform headquartered in Bengaluru, Karnataka. The company provides SMS, RCS, and WhatsApp marketing solutions to businesses seeking to reach and engage customers, with a core differentiator being its pin-code-based hyper-local messaging feature — claimed to be India's first — enabling geographic micro-targeting at postal code level. The platform includes a comprehensive analytics suite (Post Click Analysis, Insight Protocol, CTR Monitoring, CPA tracking, Retargeting, A/B Testing) and supports extended DLT compliance for Indian regulatory requirements.

The company operates a dual-product model. The primary Ananta platform serves enterprise and SMB advertisers with credit-based SMS purchasing and premium post-paid services, supported by curated audience databases segmented by vertical (fintech, e-commerce, retail) and a tracking pixel for conversion attribution. The secondary Whistle Feed (Ananta Feed) platform is a programmatic ad network enabling publishers to monetize website traffic through pencil ad units, with new publishers offered Rs.5,000 in free credits for onboarding. Distribution is predominantly self-serve via the whistle.mobi website and publisher portal, supplemented by direct sales/account management for enterprise clients.

Whistle generates revenue through three streams: usage-based SMS credit purchases, premium subscription-based post-paid services for established customers, and advertising revenue from the publisher feed platform. The company claims a customer base of 400-500+ Indian businesses across fintech (e.g., Muthoot Fincorp), e-commerce (native foods brands), and retail (apparel) verticals. The company operates three offices across India (Bengaluru, Mumbai, Gurugram) and has been in operation for approximately 5-6 years, with no publicly disclosed funding rounds or revenue figures. Satya Kiran was appointed CEO in 2021.

Name

Whistle

Legal name

WValue Martech Private Limited

Website

https://whistle.mobi

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

101–250 employees

Short description

Whistle (Ananta) is an India-based A2P enterprise messaging platform offering SMS, RCS, and WhatsApp marketing with pin-code-level geo-targeting, curated vertical audience databases, and a programmatic publisher ad network, serving 400-500+ businesses primarily in fintech, e-commerce, and retail.

Ownership category

akta.pro rank

Product category

Mobile Marketing and Enterprise Messaging Software

NAICS

Other Services Related to Advertising (54189), Telecommunications (517)

SIC

Services-Advertising (7310), Telegraph & Other Message Communications (4822)

akta.pro primary industry

SMS/MMS & Messaging Marketing Services (Text, RCS, WhatsApp/OTT) (MPAAAIAB)

akta.pro secondary industries

SMS & Mobile Direct Marketing Services (BPAFAKAI), Conversational Marketing & Chat Lead Capture (Chatbots, Live Chat) (BPAFAKAJ)

Keywords

• SMS marketing platform
• Enterprise messaging services
• Mobile marketing software
• A2P messaging platform
• Programmatic advertising network

Headquarters

HQ city

Bangalore

HQ country

India

HQ region

Asia

Offices3 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations

Revenue model

1. SMS Credits Purchase: Users purchase credits to send SMS campaigns. Credits have Fair Usage Policy with minimum usage requirements (10% within first month, 50% within first two months). Credits valid for 6 months to 1 year.
2. Premium Post-Paid Service: Premium members get post-paid service where Whistle credits money before campaign start. Account holders can make requests to add credits via mail and make payment later through the payment page.
3. Publisher Feed Platform: Programmatic platform with pencil ads for publishers to monetize their traffic. Publishers earn from ad placements.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels8 records

Core offering

Whistle (operating as Ananta) provides an A2P (Application-to-Person) enterprise messaging platform enabling businesses in India to run SMS, RCS, and WhatsApp marketing campaigns with pin-code based hyper-local targeting, retargeting, A/B content testing, and conversion tracking. The company also operates Whistle Feed, a programmatic advertising network that lets publishers monetize website traffic via pencil ads, and offers curated vertical audience databases for fintech, e-commerce, and retail clients.

Product overview

Whistle (operating as Ananta under WValue Martech Private Limited) offers a unified mobile marketing platform centered around A2P enterprise messaging services including SMS, RCS, and WhatsApp marketing. The core Ananta platform provides campaign management tools, analytics (Post Click Analysis, Insight Protocol, Performance Visit), and audience targeting including the proprietary pin-code hyper-local feature. The Whistle Feed programmatic platform enables publisher monetization, while the Publisher Platform allows website owners to access advertising inventory. Additional features include Retargeting, Content/Launch/Data Based Performance analytics, A/B testing capabilities, and a Tracking Pixel for conversion measurement. The Whistle Smart-M Click feature provides curated audience data for campaign targeting.

Differentiator

Problem solved

Functional benefit

Products and services

• Ananta A2P (Application-to-Person) enterprise messaging platform offering SMS, RCS, and WhatsApp marketing services with campaign management, analytics, and DLT compliance for Indian businesses.
• A2P Messaging Services Enterprise messaging service enabling reliable Application-to-Person communication via SMS with two-way communication, fallback mechanisms, DLT support, and real-time delivery reports for business users.
• Whistle Feed Programmatic advertising platform with pencil ads designed for performance, allowing publishers to monetize website traffic and advertisers to reach targeted audiences.
• Publisher Platform Self-serve publisher login platform that enables website owners to monetize traffic through the Whistle Feed programmatic advertising network.

Quantifiable outcome

• 40% customer onboarding in 4 months for fintech brands
• +5 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature14 records

Scale indicators11 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Msg91: Msg91 is an Indian communication platform providing SMS, email, WhatsApp, and voice APIs with self-serve onboarding. It is a direct competitor to Whistle in A2P SMS and messaging automation for businesses and developers.
• Tanla Platforms (Karix): Tanla Platforms, which acquired Karix Mobile, is one of India's largest CPaaS and A2P messaging aggregators serving enterprises with SMS, voice, and omnichannel communication—directly comparable to Whistle's enterprise messaging focus.
• Exotel: Exotel is an Indian cloud telephony and CPaaS provider offering SMS, voice, WhatsApp, and customer engagement APIs. It serves the same mid-market and enterprise customers as Whistle for transactional and promotional messaging.
• Gupshup: Gupshup is a leading Indian CPaaS platform offering A2P SMS, WhatsApp Business, RCS, and conversational messaging APIs. It directly competes with Whistle/Ananta in enterprise messaging and chatbot-driven marketing for similar Indian enterprise and SMB customers.
• ValueFirst (Veriown): ValueFirst, now branded Veriown, is an Indian CPaaS provider offering enterprise SMS, WhatsApp, RCS, and email solutions. It competes directly with Whistle for enterprise messaging budgets across similar Indian verticals.

Emerging players

• MoEngage: MoEngage is an Indian customer engagement platform that orchestrates omnichannel campaigns including SMS, push, email, and WhatsApp. It competes with Whistle for marketing budgets focused on conversion and retention.
• CleverTap: CleverTap is an Indian-origin customer engagement and retention platform that uses SMS, push, email, and WhatsApp. It overlaps with Whistle in messaging-driven marketing and customer segmentation, especially for app-first and SMB customers.

Broad incumbents

• Netcore Cloud: Netcore Cloud provides CPaaS, marketing automation, and customer engagement across email, SMS, WhatsApp, and push. It competes with Whistle at the messaging layer while offering a broader martech suite to similar Indian enterprise customers.
• Route Mobile: Route Mobile is a publicly listed global CPaaS player with strong India presence in A2P SMS, WhatsApp, and RCS messaging. It overlaps with Whistle's enterprise messaging business but operates at significantly greater scale and geography.

Regional players

• 2Factor (Integrove): 2Factor is an Indian messaging and authentication provider offering SMS, WhatsApp, voice, and email APIs. It overlaps with Whistle's transactional and OTP messaging use cases for similar enterprise and fintech customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/Whistle_Martech
• YouTubeyoutube.com/@whistlemartech6350
• Facebookfacebook.com/WhistleIndia
• LinkedInlinkedin.com/company/wvalue-martech-private-limited
• Instagraminstagram.com/whistle_martech

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Whistle