Local to global: How English skills unlock a career in leadership

Samantha Ball
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Of the 1.5 billion English speakers in the world, over half learned it as a second or additional language.

The “language of business”, English has become a foundational skill for anyone looking to work in an international business or at a leadership level, and many English as a Second Language (ESL) speakers find themselves working in English on a daily basis.

But working in your second or third language comes with a unique set of challenges and opportunities.

We spoke to five global leaders about the role English has played in their careers, the challenges of being an ESL speaker, and how businesses can create a culture where everyone has a voice.

How English skills unlock a career in leadership
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A passport to leadership

Strong English skills open doors. More than three-quarters of people with advanced English skills are in senior or leadership roles, compared to just 32% of those with limited English proficiency.

app Languages CTO, , describes English as a “passport for this new world of opportunities, opening many, many doors I wouldn’t have had access to.”

There’s a cumulative effect, with one door opening and leading to the next.

Brushing up on his English skills was the spark that won Perrucci a scholarship to Denmark. That semester blossomed into a six-year stay, multiple degrees, his first international job opportunity, and a career with well-known global brands.

Whether it was getting onto a top MBA program or that first role at a big international company, for all the leaders we spoke to, English has proved to be a career catalyst.

More diversity, more innovation, more revenue

For companies looking to innovate and stand out in a competitive global market, an international team is essential.

“We’re aiming to build models of childcare that don’t exist at the moment”, explains Founder and CEO, .

“To do that, we need diversity of thought. With an international team, it’s more likely that someone will say “hey, I was living in Cape Verde for a while, and I saw this interesting thing”.

It’s an approach that pays off. found that businesses with more diverse management teams are more innovative, leading to 19% higher revenues.

Global customers, global team

A more diverse team can also help businesses stay close to their customers.

As technology has made it easier to operate across multiple countries, businesses quickly find themselves responding to the different needs, preferences, and expectations of customers all over the world.

“Reflecting the global nature of our business in our workforce means we can build a better, more effective service and a more successful business as a result”, explains , CEO of .

To help them stay close to their 5.2 million members across 420 cities, Zeeck’s team at InterNations is made up of more than 50 different nationalities.

English is the main language both for the InterNations team and platform, helping them create “a sense of oneness and community by using a shared language”.

The ultimate brain training

The leaders we interviewed spoke, on average, four languages, with many working across multiple languages on a day-to-day basis.

That experience of jumping between different languages also develops important leadership skills.

“When you speak multiple languages,” explains Perrucci, “different parts of the brain have to work together and make connections… It teaches your brain to be flexible about what you see and the way you interpret it”.

Zeeck likened it to working out: “Just as going to the gym improves your physical wellbeing, the mental challenge of learning a new language is good exercise for the brain”. It’s one of the reasons he provides all of his team language training.

The mental load of language

But hopping between languages and navigating different cultural nuances can take its toll.

“People whose first language is English often overlook the computing power it takes to work in your second or third language,” explains, Managing Director of International Wellbeing,, who only spends around a third of his time speaking his mother tongue.

“Even when colleagues are fluent in the language you're communicating in, it might still take them a bit more energy than you expect”, he continues. “By Friday afternoon, for example, I’m struggling to think fluently in whichever language!”.

The challenge of speaking up

For those who are less confident in their English skills, it can significantly impact the way they contribute at work.

Less than half (48%)of ESL speakers feel comfortable speaking up at work, andonly 10%of employees with limited English proficiency felt they could express themselves fully at work.

The dynamic can change depending on who’s in the room. “I see the difference when ESL speakers are on calls with confident, fluent English speakers”, adds, CEO and Founder of.

“They speak less”, she continues, “they caveat their contributions with “I might be wrong”, and you can see their English actually worsens because they feel more stressed”.

Without the right culture and support, businesses miss out on the benefits of an international team they’ve recruited.

Conscious leadership

The task of building a team and helping overcome the challenges of global working falls to business leaders.

The five leaders we spoke to shared practical tips for supporting global teams, including acknowledging and proactively addressing differences, avoiding interrupting ESL speakers, and using voice notes for sensitive communication to allow tone and emotion to come through.

More fundamentally, ESL speakers need business leaders to build a culture where it’s ok to make mistakes.

Leaders with first-hand experience of being an ESL speaker are uniquely placed to understand their increasingly global teams, pre-empt their challenges, and nurture a culture that allows difference to shine.

The journey from local roles to global leadership positions hinges on strong communication skills. The stories shared by our leaders demonstrate how English proficiency not only unlocks individual career potential but also drives organizational success through innovation and diverse perspectives. By fostering a culture that values and supports language learning, businesses can harness these benefits, ensuring their teams are prepared to excel on the global stage.

This article is part of app Languages’ series,Global Voices: Leaders on Language and Business, an exclusive exploration into the pivotal role of language in achieving international business excellence. For more in this series, check out the leaders’ full interviews, coming soon to

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    Knowing which languages are most popular worldwide can influence your language learning decisions. Enhancing your language skills in these widely spoken languages can significantly boost your communication abilities and cultural understanding. It can open up opportunities for travel, business and cultural exchange. Additionally, understanding global language popularity can give you a broader perspective of the world’s linguistic diversity.

    Criteria for measuring language popularity

    Measuring language popularity is a complex task that involves various factors, including the number of native speakers, global influence, and use as a second or foreign language. The criteria for measuring language popularity include:

    • Number of native speakers: This refers to the number of people who speak a language as their first or native language. Languages with the highest number of native speakers often have a significant cultural and historical impact.

    • Global influence: This measures the extent to which a language is used in international communication, business, science and diplomacy. Languages with a broad global influence are often used as lingua francas in various regions.

    • Use as a second or foreign language: This considers the number of people who speak a language as a second language or foreign language. Languages that are widely taught and learned around the world tend to have a larger speaking population.

    By considering these criteria, we can better understand why certain languages are more prominent and widely spoken globally.

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    Here’s a closer look at the ten most spoken languages by number of speakers:

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    1. English

    Speakers: Approximately 1.5 billion

    Native speakers: Around 360 million

    Regions: Widely spoken in the Americas, Europe, Africa, Asia and Oceania.

    Highlights: English is the most widely spoken language worldwide when combining native and non-native speakers. It's the primary language in countries like the United States, the United Kingdom, Canada and Australia. English is the dominant language in international business, science and technology.

    2. Mandarin Chinese

    Speakers: Over 1.1 billion

    Native speakers: About 920 million

    Regions: Mainly in China, Taiwan and Singapore

    Highlights: Mandarin is the language with the largest number of native speakers. It's one of the six official languages of the United Nations and has a significant cultural and historical importance.

    3. Hindi

    Speakers: Around 600 million

    Native speakers: Approximately 341 million

    Regions: Predominantly in India and Nepal

    Highlights: Hindi is predominantly spoken in India and Nepal, with approximately 341 million native speakers. It is one of the official languages of India and is spoken by a large portion of the Indian population. It has numerous dialects and is written in the Devanagari script.

    4. Spanish

    Speakers: Approximately 560 million

    Native speakers: About 460 million

    Regions: Spain, Latin America and parts of the United States

    Highlights: Spanish is the official language in 21 countries and is widely spoken in the Americas. In many of these countries, Spanish serves as the national language, playing a crucial role in government, education and media. It’s known for its rich literature and cultural heritage.

    5. French

    Speakers: Around 280 million

    Native speakers: About 77 million

    Regions: France, parts of Africa, Canada, Belgium and Switzerland

    Highlights: French is another of the six official languages of the United Nations. It's widely used in international diplomacy and has a significant number of speakers in Africa due to France's colonial history.

    6. Arabic

    Speakers: Approximately 270 million

    Native speakers: Around 310 million

    Regions: Middle East and North Africa

    Highlights: Arabic is a central Semitic language that is the liturgical language of Islam. It has many dialects, with Modern Standard Arabic being used in formal settings and media. Arabic has numerous spoken forms, with significant variations in dialects across different regions.

    7. Bengali

    Speakers: Around 265 million

    Native speakers: About 230 million

    Regions: Bangladesh and parts of India

    Highlights: Bengali is the official language of Bangladesh and the second most spoken language in India. Alongside other languages like Hindi and Urdu, Bengali plays a crucial role in the cultural and linguistic landscape of the region. It’s known for its rich literary tradition.

    8. Portuguese

    Speakers: Approximately 220 million

    Native speakers: Around 220 million

    Regions: Brazil, Portugal and parts of Africa

    Highlights: Portuguese is mainly spoken in Brazil, which is the largest Portuguese-speaking country. It has a growing number of speakers in Africa.

    9. Russian

    Speakers: Around 258 million

    Native speakers: Approximately 154 million

    Regions: Russia, Eastern Europe and Central Asia

    Highlights: Russian is one of the six official languages of the United Nations and is widely spoken in the former Soviet Union countries.

    10. Japanese

    Speakers: Approximately 128 million

    Native speakers: Around 128 million

    Regions: Japan

    Highlights: Japanese is predominantly spoken in Japan and is known for its three writing systems—Hiragana, Katakana and Kanji. It has a rich cultural history and is influential in technology and entertainment.

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    Ready to start your language learning journey? Learn a new language with Mondly by app.