Featured Entrepreneurs

Since 2010, MassChallenge has accelerated 1,975 startups that have raised more than $4.3 billion in funding, generated more than $2.5 billion in revenue, and created more than 121,000 total jobs. 

Our startups

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Haystack (formerly Carterra)
Haystack (formerly Carterra)

Farmers suffer from a decreasing availability of labor as well as increasing levels of herbicide resistance. This has led the cost of removing weeds to surge, amounting up to $1,000/acre. Our solution leverages recent advances in computer vision, sensing, and robotics to automate the detection and removal of weeds while reducing herbicide use by 90%. We’re developing a mobile device that senses, decides, and acts on farms, significantly alleviating the labor shortage and reducing herbicide use.
We automate weed removal on farms, thereby reducing labor costs (up to $1000/acre) and herbicide use while enhancing produce quality.

Connect with Haystack (formerly Carterra)


2018 Finalist Boston

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Beverages & Restaurants
Hardware & Robotics
Internet of Things


MassChallenge strengthens the global innovation ecosystem by accelerating high-potential startups across all industries, from anywhere in the world.