Photo by Ron Lach on Pexels. A general vintage rotary telephone, not an Ericsson model.
The next time you pair a pair of wireless headphones with your phone, you will be using a technology named after a tenth-century Danish king and invented by engineers at a Swedish telephone company. That company is Ericsson, and its story begins not in a gleaming laboratory but in a rented workshop in Stockholm in 1876, with a repair bench, a business partner and a loan of 1,000 Swedish crowns.
Ericsson is one of the quieter giants of Swedish industry. Most people could not name a single Ericsson product they own, yet a large share of the world’s mobile calls and data passes through equipment the company has built. Along with Volvo, IKEA and Spotify, it is part of the reason a country of roughly ten million people punches so far above its weight in global business.
From a Värmland farm to a Stockholm workshop
Lars Magnus Ericsson was born in 1846 on a small farm in Värmland, in western Sweden, in a family with little money. He left home young, found work in Stockholm in the late 1860s making telegraph equipment, and eventually won a government scholarship to study instrument-making abroad. Between 1872 and 1875 he worked in Germany, including at the electrical firm Siemens & Halske in Berlin, absorbing the engineering culture of Europe’s most advanced industrial economy.
Back in Stockholm in 1876, he opened a small workshop with his friend Carl Johan Andersson. The start-up capital was reportedly SEK 1,000, borrowed from a private lender. The early business was modest: repairing telegraph equipment and, increasingly, the foreign telephones that had begun to appear in Sweden after Alexander Graham Bell’s invention the same year.
Repair work turned out to be a brilliant education. By taking Bell and Siemens telephones apart, Ericsson learned exactly how they worked and where they could be improved. By 1878 the workshop was making its own telephone equipment, and the repair shop was on its way to becoming a manufacturer.
The city with telephone wires across the sky
Ericsson’s timing was lucky, and Stockholm’s attitude to the new technology was unusually enthusiastic. A private telephone company, Stockholms Allmänna Telefonaktiebolag, launched in the early 1880s and priced its service low enough for ordinary households and businesses to sign up. Ericsson became a key supplier, and the partnership helped the firm grow quickly.
The result was one of the most telephone-dense cities in the world by 1900. In the centre of the capital stood the famous Telefontornet, a tall iron tower built in the 1880s to carry thousands of overhead telephone lines, which radiated outward across the rooftops like a giant spider’s web. Photographs of the tower remain one of the great images of early telecommunications. If you are visiting the city, our Stockholm city guide will point you to the neighbourhoods where much of this history unfolded.
Lars Magnus Ericsson stepped back from running the company around the turn of the century and sold his remaining shares in 1905. He died in 1926. By then the firm bearing his name was exporting telephones across Europe and beyond, and it had become one of Sweden’s most important industrial employers.
Why a small country became a telecom power
Sweden has a few structural advantages that explain why Ericsson thrived, and why the Nordics generally became so important in telecommunications:
- Geography. Long distances, sparse populations and harsh winters made reliable telephone and radio networks genuinely valuable, not a luxury.
- A small home market. Ericsson could never rely on domestic sales alone, so it built for export from the start and learned to adapt products to many countries’ standards.
- Technical education. Sweden’s strong engineering schools fed a steady supply of talent into the industry.
- Cooperation with the state. The national telephone administration, Televerket, worked closely with Ericsson on specifications, giving the company a demanding and well-informed home customer.
The same blend of engineering seriousness and international outlook shows up in other Swedish success stories, from Saab’s aircraft and cars to the payments company Klarna.
NMT: the world’s first multinational mobile network
Ericsson’s most important contribution to everyday life may be less visible than a handset. In the 1970s and early 1980s the Nordic telephone administrations collaborated on a mobile standard called NMT, Nordic Mobile Telephone. Networks launched in Sweden and Norway in 1981 and in Denmark and Finland in 1982, and NMT is widely described as the first multinational mobile telephone network. For the first time, a traveller could drive across a national border and keep using the same phone.
That cross-border thinking shaped what came next. The European GSM standard of the 1990s drew heavily on Nordic experience, and the success of GSM made mobile phones a mass-market product. Ericsson, along with its Finnish neighbour and rival Nokia, was among the main beneficiaries. The Nordic telecom cluster of the 1990s, with Stockholm and Helsinki at its centre, was one of the most successful regional technology stories in history.
Bluetooth and a Viking king
Perhaps the most charming chapter in Ericsson’s history concerns the technology in your headphones. In the 1990s, engineers at Ericsson Mobile in Lund, in southern Sweden, were working on a short-range radio link that could replace the cables connecting phones to accessories. The lead technical work is usually credited to Jaap Haartsen, with Sven Mattisson also closely involved.
When it came time to name the new standard, which several companies were developing together, someone suggested a temporary codename drawn from Scandinavian history: Harald Bluetooth, the Danish king who united parts of Denmark and Norway in the tenth century. The idea was that his achievement of bringing disparate groups together mirrored a technology designed to connect devices from different manufacturers. The temporary name stuck, and the Bluetooth logo is a combination of two runes, the Younger Futhark letters for Harald’s initials, H and B. For more on the age that king came from, read our brief history of the Vikings.
Handsets, Sony and the long reinvention
Ericsson was also a major maker of mobile phones in the 1990s. But the handset business proved fiercely competitive, and in 2001 Ericsson and Sony merged their phone operations into a joint venture, Sony Ericsson, which lasted until Sony bought out Ericsson’s share in 2012. Ericsson refocused on what it had always done best: building the networks behind the phones.
Today the company concentrates on network equipment and services for mobile operators, including 5G, and competes with rivals such as Huawei, Nokia and Samsung. Its headquarters are in Kista, a technology district north of Stockholm often nicknamed Sweden’s Silicon Valley. Ericsson has also long been tied to the Wallenberg family, whose investment company Investor AB has been a leading shareholder for decades, a pattern common in Swedish industry.
The industry is far from calm. Telecom equipment is a low-margin, cyclical business, vulnerable to shifts in operator spending and to geopolitics. Yet Ericsson’s long record of surviving technology transitions, from manual exchanges to digital switching, from analogue to 5G, is exactly what makes it a fascinating case study.
What Ericsson tells us about Swedish business
Ericsson’s story contains several traits that appear again and again in Nordic enterprise:
- Quiet competence over showmanship. The company has rarely courted celebrity, preferring technical credibility.
- Consensus and standards. From NMT to Bluetooth, Ericsson has often succeeded by building shared standards rather than closed systems.
- Export thinking from day one. A small home market pushed the company to think globally earlier than many larger rivals.
It is also a reminder that Swedish innovation did not start with start-ups. Long before a new generation of founders built music streaming and fintech companies in Stockholm, a farmer’s son with a borrowed 1,000 crowns had already helped to wire the world.
Quick facts about Ericsson
- Founded: 1876, Stockholm, by Lars Magnus Ericsson and Carl Johan Andersson
- Known for: telecom network equipment, NMT, and Bluetooth research
- Headquarters: Kista, north of Stockholm
- Famous partnership: Sony Ericsson (2001 to 2012)
- Viking connection: Bluetooth is named for Harald Bluetooth, a Danish king
Next time your headphones connect with a quiet chime, spare a thought for a Värmland farm boy, a Lund laboratory and a Viking king who died more than a thousand years ago.
