Arun Kar, a UK-based British entrepreneur of Odisha origin, is a distinguished tech investor, visionary leader, and military veteran. As the founder of multiple successful companies, he has built and scaled enterprises across diverse industries, forging high-impact global partnerships. Today, Arun is focused on enabling visionary entrepreneurs and investing in groundbreaking ventures that tackle some of the world’s most pressing challenges—ranging from sustainability and clean energy to digital transformation and deep tech innovation.
Drawing on over two decades of experience in military service and technology innovation, Arun Kar transforms visionary ideas into impactful, sustainable business solutions. As a military veteran turned technocrat and Founder of Nest Group, he champions digital transformation and empowers startups across diverse sectors—from smart cities and renewable energy to information technology. With a proven track record of strategic investments and leadership, Arun is dedicated to turning bold ambitions into tangible value for businesses, entrepreneur, and communities worldwide.
Arun Kar envisions redefining the intersection of technology and sustainability by leveraging military discipline and entrepreneurial insight to solve pressing global challenges. Committed to driving innovation for humanity and the planet, he focuses on developing cutting-edge solutions that transform industries, empower businesses, and create a lasting impact on communities worldwide.
Arun Kar’s mission is to empower visionary leaders and startups through strategic investments, mentorship, and ethical governance. By fostering innovation and sustainable growth, he is committed to turning bold ideas into impactful, real-world value, driving progress for businesses, communities, and the planet.
As a globally recognized entrepreneur and industry leader, Arun leverages his expansive cross-sector experience to build transformative ventures that accelerate growth, redefine operational excellence, and create long-term value in rapidly evolving global markets
Arun Kar is at the forefront of digital transformation, driving breakthrough IT solutions and technological innovations through ventures like Xpertnest. His work in this sector is dedicated to harnessing technology to solve complex challenges and enhance the global digital landscape.
A core pillar of his vision, Arun leverages sustainable practices and eco-friendly innovations—exemplified by Earthnest—to address environmental challenges. His commitment is reflected in initiatives that promote renewable energy and sustainable business models, ensuring long-term ecological and economic benefits.
With a focus on integrating technology into urban development, Arun envisions smarter cities that are more efficient, resilient, and sustainable. His efforts aim to revolutionize urban planning and infrastructure, transforming the way communities live and interact in a digitally driven world.
Recognizing the importance of clean and efficient transportation, Arun is passionate about pioneering advancements in electric vehicles, hydrogen automotives, and other renewable energy solutions. His investments in this sector are geared toward reshaping mobility and reducing the environmental impact of transportation.
Arun Kar had the immense honor of meeting Her Excellency, the Honourable President of India, Smt. Droupadi Murmu, at Rashtrapati Bhavan, New Delhi. Madam President, also the Supreme Commander, expressed happiness hearing about Arun's CSR activities and extended her best wishes for grand success in all his endeavors.
Reflecting on an extraordinary evening in November 2023, Arun Kar had a special invitation to dine with The Right Honourable Rishi Sunak, MP, the Prime Minister of the United Kingdom. Their discussions centered around leadership, innovation, sustainable growth, and addressing global challenges through transformative solutions. Arun was deeply inspired by the Prime Minister's insights and commitment to creating a positive societal impact.
It was a profound honour for Arun to meet the Honourable Chief Minister of Odisha, Shri Mohan Charan Majhi, during the Utkarsh Odisha event. Their discussion centred on strategic investments poised to generate substantial employment opportunities and elevate Odisha’s position on the global stage as a hub of world-class innovation. Arun underscored the importance of sustainable business practices and the transformative role of technology in accelerating the state’s growth. The meeting marked a significant step toward collaborative efforts aimed at shaping Odisha into a global epicentre of innovation and economic development.
Arun had the distinct honour of engaging in a meaningful and insightful discussion with Dr. S. Jaishankar, Honourable Minister of External Affairs, during the 18th Pravasi Bharatiya Divas (PBD) held in Bhubaneswar in 2025. Their conversation focused on transformative initiatives to accelerate Odisha’s development, with an emphasis on innovation, infrastructure, and global partnerships. Arun highlighted the immense potential of the ODOP (One District One Product) initiative in showcasing the unique strengths of Odisha’s districts on global platforms, alongside a strategic dialogue on TTT — Trade, Technology, and Tourism