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
Featured on the cover of Forbes on March 2023 as one of the Unstoppable Indians and Influential Leader Business, marking a major milestone in his career for his contributions to business, sustainability, and leadership.
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Received the prestigious Mahatma Gandhi Samman at the House of Commons, London, recognising his dedication to entrepreneurship, innovation, and global sustainability.
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Featured on the cover of Fortune India as one of the Top 40 “Unstoppable Worlds Brightest Business Minds”, alongside Elon Musk, for his contributions to business and leadership.
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SME National Business Awards (December 2021)- Xpertnest was awarded the Silver Award for Best Enterprising Business at the SME National Business Awards in December 2021.
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Earthnest received the Product Innovation Award at the Southern Sustainability Expo in 2021 for its groundbreaking solutions in the sustainability sector.
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Xpertnest was named Company of the Year in 2019 by CIO Review, a leading technology publication.
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NBT (NavBharat Times) – 2022- Recognized as a Times Visionary Leader in 2022 by NavBharat Times (NBT), a prominent publication under the Times Group, acknowledging his leadership in business and innovation.
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Arun was honoured at the University of Oxford with the UN Global Excellence Award 2025 by the United Nations Global Peace Council on 16 December 2025 in recognition of his sincere contributions and outstanding achievements toward the growth of the society across his respective fields of work; the award acknowledges his purpose-driven leadership, impactful initiatives in innovation, sustainability, and social development.
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In July 2025, Xpertnest recognized on the UK's Growth500 list in 2025, highlighting its significant revenue growth (around 220%) demonstrating high performance based on public data compiled by experts behind the Sunday Times Rich List. The Growth500 identifies the UK's fastest-growing companies through rigorous analysis of financial filings, showcasing firms like Xpertnest that show strong revenue expansion and innovation in various sectors.
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Honoured as Business Person of the Year at the SME London Business Awards for his outstanding contributions to business and innovation.
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(WCRCINT and WCRCLEADERS – September 2022)- He was awarded the title of World’s Best Emerging Business Leader 2022 by WCRCINT and WCRCLEADERS in the category of Business Consulting, presented at the esteemed House of Lords, British Parliament.
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SME National Business Awards (December 2021)- Arun Kar’s company, Earthnest, won the Gold Award in the Best New Business category at the SME National Business Awards, held in December 2021.
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He is a holder of the Guinness World Record for his outstanding achievements in the Marathon in September 2021, which helped in delivering the Polio vaccine for UNICEF.
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CNBC TV18 and AsiaOne- He was honoured as the Global Indian of the Year for 2020-2021, recognized on CNBC TV18 and AsiaOne’s platform for his significant contributions to business and technology.
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Featured on the cover of CIO Review in 2019 for his visionary leadership and contributions to the IT and business sectors.
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In November 2025, Xpertnest has been recognised as one of the UK’s 200 fastest-growing firms by the 2025 UK Fast Growth Index, a programme which identifies and celebrates the fastest-growing businesses across the UK
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Arun was felicitated at the Oxford Leadership Summit and formally honoured at the University of Oxford as an Eminent Guest Speaker on 16 December 2025 in acknowledgement of his extraordinary dedication, leadership, and outstanding contributions, reflecting his continued impact in inspiring excellence, innovation, and purpose-driven leadership on a global platform.
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