WhiteHat Jr Founder Karan Bajaj Raises $16 Mn For His New Startup Complement 1

WhiteHat Jr’s founder, Karan Bajaj, has raised $16 million (₹136.4 crore) in seed funding for his new cancer care startup, Complement1. The funding round was led by Owl Ventures and Blume Ventures.

The startup plans to use the funds to grow its coaching team, improve its AI-based personalisation system, and build more partnerships with cancer centres, health plans, and employers in the U.S.

It aims to include proven lifestyle changes—like better nutrition, sleep, stress management and exercise—into the overall cancer care process.

The startup has now come out of stealth mode and is launching a tech-driven platform to help cancer patients and people at high risk. It offers daily, personalised support and guidance through trained CoActive Coaches, using clinically tested lifestyle changes.

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"Lifestyle change is one of the most powerful yet underused tools in cancer care," said Karan Bajaj, CEO and Co-Founder of Complement 1."Every oncologist will tell you patients need more support incorporating clinically recommended physical activity, nutrition and mind-body practices. We've cracked the code on daily engagement with personalised, compassionate coaching—helping patients make meaningful, lasting improvements during and beyond treatment."

"With rising cancer incidence rates, Complement 1 is creating a revolutionary new model to improve global cancer outcomes," said Amit A. Patel, Managing Director at Owl Ventures.

"We were impressed by the team's ability to combine high-tech personalisation and education with high-touch CoActive Coaching focused on physical activity, somatic and nutrition human guidance to solve a critical gap in oncology. We're thrilled to support Complement 1 in bringing this much-needed solution to patients and health systems."

The company says early trials show promising results—members reported 37% fewer side effects, 18% less pain, and 27% better sleep. Over 90% of users are sticking with the program.

The startup also claims its platform can cut healthcare costs by up to 30% for cancer patients and those at high risk.

In August 2020, BYJU’S bought Mumbai-based WhiteHat Jr for $300 million. After the deal, founder Karan Bajaj headed BYJU’S international division, launching programs in different languages for students in the US, Brazil, and Mexico. He left the company in August 2021.

Bajaj started WhiteHat Jr in 2018. It was a live, one-on-one online coding platform that taught young children the basics of coding—like logic, structure, and algorithms—skills not usually covered in regular schools.

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