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The 10 biggest companies in the world to invest in (by revenue)

In the fast-paced and ever-evolving world of business, some companies soar above the rest, commanding a dominant presence on the global stage.

These powerhouses generate staggering revenues, shape industries, and leave an indelible mark on economies around the world.

Below, we explore some of the best companies in the world to invest in based on revenue, earnings and market cap.

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1. Walmart

  • Revenue: $611.28 billion
     
  • Net income: $19.14 billion
     
  • Market cap: $412.12 billion

When it comes to identifying the top biggest companies in the world to invest in, Walmart stands out as number one.

As a retail giant, Walmart has established an unparalleled global presence, with a vast network of stores catering to diverse consumer needs.

The company's commitment to offering everyday low prices has resonated with millions of customers, ensuring consistent footfall and revenue.

Walmart's ability to adapt to changing market dynamics, embrace e-commerce, and provide convenient shopping options positions it as a resilient player in the industry.

Furthermore, its robust financial performance, marked by impressive revenues and operational efficiency, instils confidence in investors.

With a track record of stability, consistent growth, and a commitment to customer satisfaction, Walmart presents an enticing investment opportunity for those seeking to align themselves with a global retail leader.

2. Saudi Aramco

  • Revenue: $604.17 billion
     
  • Net income: $307.36 billion
     
  • Market cap: $2.171 trillion

As the largest energy company globally, Saudi Aramco holds a dominant position in the oil and gas industry.

With its vast reserves, state-of-the-art infrastructure, and strategic importance in the global energy market, the company offers compelling investment prospects.

Its stability as a state-owned entity and its pivotal role in powering the world's economy provide a sense of security to potential investors.

Saudi Aramco's impressive revenue and net income figures underscore its financial strength and ability to generate substantial returns.

Moreover, its long-term vision, commitment to technological advancements, and focus on sustainable practices position it well for future growth in a changing energy landscape.

For investors seeking exposure to a cornerstone of the global energy sector, Saudi Aramco represents a formidable investment opportunity.

3. Amazon

  • Revenue: $524.89 billion
     
  • Net income: $4.29 billion
     
  • Market cap: $1.143 trillion

As a global leader in e-commerce, Amazon has revolutionised the way we shop and transformed the retail landscape.

With its unparalleled range of products, efficient delivery, and innovative services like Amazon Prime, the company has captured the hearts of millions of customers worldwide.

Investing in Amazon offers the opportunity to tap into a business that consistently demonstrates remarkable growth and adaptability.

Its visionary leadership, relentless focus on customer experience, and commitment to innovation have propelled the company to new heights.

Beyond e-commerce, Amazon has diversified its offerings, expanding into cloud computing, digital streaming, and artificial intelligence.

Financially, Amazon showcases impressive figures, with soaring revenues and consistent profitability.

Its robust infrastructure, strong cash flow, and strategic investments position it for sustained success.

With its unwavering commitment to customer satisfaction and a penchant for disrupting industries, Amazon presents a captivating investment prospect for those seeking exposure to a global powerhouse poised for continued expansion and innovation.

4. Sinopec

  • Revenue: $484.14 billion
     
  • Net income: $15.66 billion
     
  • Market cap: $763.62 billion

As one of the largest integrated energy and chemical companies, Sinopec has a significant global presence and plays a vital role in meeting the world's growing energy demands.

Sinopec's diverse operations span the entire energy value chain, encompassing exploration, production, refining, and marketing.

With extensive reserves and a robust infrastructure, the company is well-positioned to capitalise on the global energy market's evolving dynamics.

Investing in Sinopec offers an opportunity to align with a company that embraces innovation, sustainability, and technological advancements.

Sinopec's commitment to clean energy solutions and its efforts to reduce environmental impact demonstrate its forward-thinking approach.

Financially, Sinopec showcases strong performance, with substantial revenues and stable profitability.

Its strategic investments and continuous optimisation of operations contribute to its resilience in a highly competitive industry.

For investors seeking exposure to the energy sector and the potential for long-term growth, Sinopec presents an intriguing investment proposition.

5. PetroChina

  • Revenue: $462.94 billion
     
  • Net income: $35.11 billion
     
  • Market cap: $200.56 billion

As China's largest oil and gas producer and distributor, PetroChina commands a significant presence in the global energy landscape.

PetroChina's vast reserves, extensive infrastructure, and diverse operations across exploration, production, refining, and marketing offer compelling investment opportunities.

The company's strategic positioning in China, one of the world's largest energy consumers, ensures a stable and growing customer base.

Investing in PetroChina provides an avenue to tap into a company that demonstrates resilience and adaptability in a dynamic market.

With a focus on efficiency, technological advancements, and sustainable practices, PetroChina aligns with evolving industry trends and environmental responsibilities.

Financially, PetroChina exhibits robust performance, with substantial revenues and consistent profitability.

The company's sound financial management and strategic investments contribute to its long-term stability and growth potential.

For investors seeking exposure to the energy sector and the prospects of China's expanding market, PetroChina offers a friendly invitation to participate in the company's mission of fuelling growth and driving opportunities in the global energy landscape.

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6. Exxon Mobil

  • Revenue: $394.58 billion
     
  • Net income: $86.00 billion
     
  • Market cap: $426.97 billion

As a multinational oil and gas company, Exxon Mobil operates across the entire value chain, from exploration and production to refining and distribution.

Investing in Exxon Mobil provides an opportunity to align with a company that fuels progress and innovation.

With a rich history and extensive global operations, Exxon Mobil has established itself as a reliable and influential force in the energy sector.

Financially, Exxon Mobil showcases impressive figures, with substantial revenues and a track record of profitability.

Its strategic investments in research and development, commitment to operational excellence, and dedication to environmental stewardship instil confidence in investors.

7. Apple

  • Revenue: $385.09 billion
     
  • Net income: $112.30 billion
     
  • Market cap: $2.712 trillion

As a global technology giant, Apple has redefined the consumer electronics industry and captured the imaginations of millions worldwide.

Investing in Apple offers an opportunity to align with a company that exemplifies innovation and quality.

From the iconic iPhone to the ground-breaking Mac computers and innovative wearables like the Apple Watch, Apple's product portfolio continues to captivate consumers and dominate markets.

Financially, Apple boasts remarkable figures, with substantial revenues and consistent profitability. Its loyal customer base, unwavering brand loyalty, and ecosystem of products and services contribute to its enduring success.

Beyond hardware, Apple's commitment to software, services, and user experience further elevates its investment appeal.

With a focus on privacy, sustainability, and accessibility, Apple continues to shape the future of technology. Investing in Apple means joining a journey of ongoing innovation, customer-centricity, and technological advancement.

8. Shell

  • Revenue: $384.07 billion
     
  • Net income: $68.39 billion
     
  • Market cap: $203.65 billion

Among the top biggest companies in the world to invest in, Shell emerges as a prominent player in the energy sector.

Shell's diverse operations span oil and gas exploration, production, refining, and marketing, while also venturing into renewable energy sources and low-carbon solutions.

Financially, Shell showcases strong performance, with significant revenues and a focus on delivering long-term value to shareholders.

The company's strategic investments in technology, digitalisation, and sustainability position it well for future growth and resilience.

9. UnitedHealth

  • Revenue: $333.48 billion
     
  • Net income: $27.15 billion
     
  • Market cap: $452.72 billion

As a diversified health services organisation, UnitedHealth is dedicated to improving access to quality care, enhancing health outcomes, and transforming the healthcare experience.

Investing in UnitedHealth offers an opportunity to align with a company that is at the forefront of innovation and patient-centred care.

With a vast network of healthcare providers, cutting-edge technology, and data-driven insights, UnitedHealth strives to improve the health and well-being of individuals and communities.

Financially, UnitedHealth boasts impressive figures, with substantial revenues and consistent profitability.

Its strategic investments in digital health solutions, telehealth, and personalised medicine position it as a driving force in the industry.

10. CVS Health

  • Revenue: $330.91 billion
     
  • Net income: $4.17 billion
     
  • Market cap: $88.72 billion

In at number 10 in our list of the biggest companies in the world to invest in comes CVS Health.

This diversified healthcare company is committed to delivering innovative solutions that enhance access to care, promote wellness, and improve health outcomes.

Investing in CVS Health means aligning with a company that combines the expertise of pharmacies, healthcare services, and retail convenience.

With a vast network of pharmacies, clinics, and digital health platforms, CVS Health is dedicated to making healthcare more accessible, affordable, and personalised.

Financially, CVS Health demonstrates stability and growth, with significant revenues and a focus on value creation for shareholders.

Its strategic acquisitions, investments in digital health technology, and emphasis on preventive care highlight its forward-thinking approach.

By investing in CVS Health, investors can support a company that is actively shaping the future of healthcare, empowering individuals to lead healthier lives.


If you’re new to investing or want to explore your options for the best companies to invest in further, it’s always recommended to seek financial advice first. 

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Disclaimer: all figures taken from companies market cap and are up to date as of 12.05.2023

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About the author
Andy Jones is a content publisher at unbiased.co.uk and has over 10 years experience in copywriting, content management and content production across finance, marketing, e-commerce, leisure and lifestyle.