About Whistle
Whistle is a company based in San Francisco (United States) founded in 2012 was acquired by Tractive in July 2025. Whistle has raised $21 million across 2 funding rounds from investors including Qualcomm, Tractive and Mars. Whistle has completed 1 acquisition, including PetTracker. Whistle offers products and services including Whistle Switch, Go Explore 2.0, and Health 2.0. Whistle operates in a competitive market with competitors including Fi, Wagz, Invisible Fence, Pawscout and Felcana, among others.
- Headquarter San Francisco, United States
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Sectors
ConsumerTechnology
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Email
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Phone
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Website
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Social
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- Legal Name Antech Diagnostics, Inc.
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Annual Revenue
Not available
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Net Profit
Not available
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EBITDA
Not available
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Total Equity Funding
$21 M (USD)
in 2 rounds
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Latest Funding Round
$15 M (USD), Series B
Jan 30, 2015
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Investors
Qualcomm
& 7 more
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Employee Count
Not available
- Investments & Acquisitions
- Acquired by
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Products & Services of Whistle
Whistle offers a comprehensive portfolio of products and services, including Whistle Switch, Go Explore 2.0, and Health 2.0.
Smart collar for location tracking and health monitoring of pets.
Device for monitoring pet activity, wellness, and location updates.
App-based tool for tracking pet behavior and providing health insights.
People of Whistle
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Funding Insights of Whistle
Whistle has successfully raised a total of $21M across 2 strategic funding rounds. The most recent funding activity was a Series B round of $15 million completed in January 2015. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
Investors in Whistle
Whistle has secured backing from 8 investors, including venture fund and institutional investors. Prominent investors backing the company include Qualcomm, Tractive and Mars.
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Venture capital firm focused on B2B companies
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Tech-focused seed, early, and mid-stage VC investments are made globally.
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Tech-focused Early-stage centric VC Firm investing primarily in the US
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Investor details for Whistle
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Investments & Acquisitions by Whistle
Whistle has strategically engaged in corporate development activities, having acquired 1 company. Notable acquisitions include PetTracker.
Investment portfolio details for Whistle
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| Company Name | Description | Domain | Location | Founded Year | Amount |
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GPS tracking devices for pets are developed and monitored remotely.
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Complete acquisition details for Whistle
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Financial Statements - Whistle
Detailed financials for Whistle
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Whistle Comparisons
Peer comparison for Whistle
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Competitors of Whistle
Whistle operates in a dynamic and competitive business environment, facing competition from various established players and emerging companies in the market. The competitive landscape includes prominent companies such as Fi, Wagz, Invisible Fence, Pawscout and Felcana, among others.
| Company Name | Domain | Founded year | HQ Location | Description |
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Smart GPS trackers and activity monitors for dogs are offered.
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Smart GPS collars for pets with video streaming are offered.
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Electronic pet containment systems and training services are provided.
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Private label brand of Bluetooth-enabled pet tags
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Internet first brand offering monitoring devices for cats and dogs
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Detailed competitors of Whistle
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Latest news on Whistle
Complete news archive for Whistle
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Frequently Asked Questions about Whistle
Whistle was founded in 2012 and raised its 1st funding round 1 year after it was founded.
Whistle is headquartered in San Francisco, United States. It is registered at San Francisco, California, United States.
Whistle is a funded company, having raised a total of $21M across 2 funding rounds to date.
Founded in 2012 and based in San Francisco, United States, Whistle operates in the pet technology sector. Private label tracking devices for dogs are produced, featuring a wireless collar attachment and a companion mobile app. Activities such as walking, playing, and resting are monitored, along with fitness, nutrition, health, and location data. Free shipping is provided, and products are covered by a one-year warranty.
Whistle's top competitors include Fi, Invisible Fence and Wagz.
Whistle offers Whistle Switch, Go Explore 2.0, and Health 2.0.
Whistle has made 1 acquisition, including PetTracker.
Whistle has 8 investors. Key investors include Qualcomm, Tractive, Mars, NGP Capital, and DCM.