COMPANY PROFILE

Whistle

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Whistle GPS Tracker For Dogs & Cats

San Francisco, United StatesFounded 2012Home Living

Valuation $100–250M Last recorded · 2016

Headcount <100 Current team size

Total funding $10–50M Disclosed equity funding

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About Whistle

Whistle offers smart devices designed to provide pet parents with comprehensive insights into their dog's health. Powered by a team of veterinarians and data scientists, Whistle leverages six years of research and a health study involving over 100,000 dogs. The company operates in the pet care technology market, focusing on delivering peace of mind to pet owners by offering detailed health monitoring solutions. Whistle's business model includes selling these smart devices and potentially partnering with other entities in the pet care industry. As part of Kinship, the venture, technology, and data division of Mars Petcare, since 2016, Whistle aligns with Mars' mission to create a better world for pets. For partnership inquiries, contact [email protected].

MoreLess Source: Dealroom company data

At a glance

Status: Acquired
Founded: 2012
Headquarters: San Francisco, United States
Employees: 20
Open positions: None listed
Dealroom signal: 78.7/100
Industry: Home Living
Sector: Home Living, Tracking, Geopositioning, Wearable, Pets
Technology: IoT InternetOfThings
Business model: Manufacturing
Client focus: b2c
Links: Website LinkedIn X

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Funding history

6 recorded events

Company financing events and reported valuations.

Deal type	Date	Amount	Valuation	Investors	Source
ACQUISITION✓Exit	Jul 2025	$0	—	Tractive	↗
ACQUISITION✓Exit	Apr 2016	$119M	$119M	Mars	—

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Growth signals

Whistle website traffic

Latest recorded traffic for Whistle is 260 monthly website visits, down 42.2% over the last three months. Whistle's team grew 17.6% over the past year.

Latest monthly visits260 3-month web change-42.2% 1-year team growth+17.6%

Monthly website visitsJan 2017–Jul 2026

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