Company Holdings

As the world’s leading digital specialist retailer for bicycles, Internetstores Group gets more people on bikes than anyone else. Well-known platforms such as, Bikester, Probikeshop, Campz and Addnature carry over 130,000 products and 1,300 brands.

Rene Marius Köhler founded the company in 2003 and ran it as CEO until 2016. He sold the majority stake to SIGNA, but still holds a minority stake in the company.

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Leading digital specialist retailer for Bike & Outdoor

Internetstores has more than 40 online shops in 15 countries. The goods are shipped directly to the customer from six international logistics centres. The range includes brands such as Votec, Fixie Inc., Ortler and Serious, which are marketed exclusively and have won awards. This extensive range is complemented by stores in Germany, Sweden and France, as well as a growing service network of mobile and local partners.

Based in Berlin, Germany, SIGNA Sports United is a leading global sports e-commerce and tech platform in Bike, Tennis, Outdoor and Team Sports with more than 7 million active customers and close to 500 million annual webshop visitors. SIGNA Sports United combines iconic webshop brands such as Wiggle, Chain Reaction Cycles,, Bikester, Probikeshop, Campz, Addnature, Tennis-Point, TennisPro, Outfitter and many more. More than 1,000+ brand partners, 500+ independent offline retailers and more than 15 million digital sports community members are connected to its platform.

Rene Marius Köhler sold INTERNETSTORES to SIGNA in 2016, and subsequently acquired a stake in the Group in 2017.

News: SIGNA Sports United to go public on NYSE through Combination with Yucaipa Acquisition Corporation

CEO Message

SSU Overview


Leading global sports e-commerce & technology platform

SIGNA Sports United enjoys a leading market position in the fast-growing bike, tennis, outdoor and team sports categories and has direct access to the USD 1.1 trillion global sports market. SIGNA Sports United's initial public offering on the New York Stock Exchange will further strengthen its market-leading position and accelerate its global expansion in the coming years. The company enjoys a sustainable positive balance sheet with profitable organic growth of more than 25% annually over the last three years.

Jet App

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In 2017, the KOEHLER GROUP team, consisting of experts in the areas of private aviation and Industry 4.0, founded the company JetApp. The platform offers private jet booking and the company managed to digitize the booking process. Driven by strong annual sales growth of over 50% and a successfully implemented internationalization strategy in 7 European countries, the company managed to reach the operational break even already in the third year after its foundation.

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The market potential

With a market potential of 13 billion US dollars and annual growth rates of 7 % in Europe, the private aviation business is an extremely attractive market. Most travel verticals are home to operators and marketplaces that simply enable digital bookings to be made, letting them position themselves as the leading companies in the verticals in question. However, this is not yet the case in the field of private jet bookings, although the shopping basket values are much higher than in the other verticals. By digitizing and simplifying the booking process for private aviation, JetApp was able to establish itself in the private aviation market within a very short time and thus successfully occupy an extremely attractive niche.

Further direct Company Holdings


Revolut was founded in 2015 and is headquartered in London. Over the course of just four years, it has developed into one of Europe’s leading fintech start-ups. More than 8 million clients already hold an account with Revolut, and around 20,000 new accounts are opened every day. Revolut’s products are an alternative to traditional banks and appeal to clients thanks to their digital-first approach.

Revolut was valued at around USD 5.5 billion when the KOEHLER GROUP invested. Previous investors have included companies such as DST, Lakestar, Mastercard and Index Ventures.

The KOEHLER GROUP invested in the company in 2020 and is supporting its future growth and expansion.


Moonfare is a technology platform via which private persons and their advisors gain access to the TOP private equity funds and can invest in them online, in a completely straightforward manner.

In the past, this was reserved for institutional investors and only a few private individuals, due to the minimum investment amounts per fund, usually of several million euros. Due to the more than twice as high average returns compared to the stock market (Global PE Index Top Quartile vs. S & P 500) over the past 10, 15 and also 20 years, there is a huge, largely unsatisfied demand from private investors to invest in the TOP PE funds.

Over 13,000 users are currently active at Moonfare and have already invested more than 900 million euros in these TOP private equity funds via the platform. The KOEHLER GROUP has been a founding investor in Moonfare since 2017.


Gojek is Southeast Asia’s leading provider of on-demand multi-service platforms and digital payment technologies. The company offers mobility services such as ride-hailing, express logistics and food delivery, and is one of the largest mobile payment providers in Southeast Asia, as well. Gojek is active in more than 200 cities across Indonesia, Vietnam, Singapore, Thailand and the Philippines.

Gojek is Indonesia’s first decacorn and one of the fastest growing start-ups in the world. The company was valued at USD 10 billion when the KOEHLER GROUP invested, with firms such as Google, KKR, Warburg Pincus and Tencent already having invested in it.

The KOEHLER GROUP invested in the company in 2019 and is supporting its ongoing growth.

Boxine / Tonies & Toniebox

Boxine GmbH has been developing and marketing the Tonies and the Toniebox since 2016. This audio system for children between the ages of three and ten consists of an audio player (the Toniebox) and matching figurines to go with it (the Tonies). This new type of audio player turns audio content into something children can literally touch, thereby creating a completely new audio experience.

The company has already won numerous awards, such as the German Founders Prize 2019 in the “ young entrepreneurs” category. More than 2 millions Tonieboxes and over 20 million Tonies have already been sold, as of February 2021.

The KOEHLER GROUP invested in the company in 2019 and is supporting the founders, plus its lead investor Armira, in developing the company further and rolling it out internationally.


The private equity fund 7 GLOBAL CAPITAL invests in technology companies around the world. 7 GLOBAL CAPITAL focuses on young, growing tech companies, primarily in the European and US markets. 7 GLOBAL CAPITAL offers its backing to innovative ideas and unique products, coupled with secure corporate structures and financial strength. The fund also actively encourages US companies to expand into the European market. In 2018, 7 GLOBAL CAPITAL won the prestigious “Rising Star” award as the best European venture capital fund at the “Private Equity Exchange & Awards” in Paris.

The KOEHLER GROUP has been a “general partner” in 7 GLOBAL CAPITAL since 2017, via the joint holding company SP Global Capital.

Seven Senders

Seven Senders focuses on developing a B2B solution for shipping parcels from online shops, with the aim of making it cheaper for online shops to deliver their products to other European countries. At present, Seven Senders currently sends almost half a million parcels per month and is experiencing month-on-month growth of 30 per cent. In 2019, current and new shareholders alike invested EUR 16 million in the company to underpin its international expansion and company growth.

KOEHLER Capital Partners GmbH, together with btov partners, acquired a minority stake in the company in 2017 and is supporting the founders as the company continues to expand., &

Norrländska Vapenaffären Aktiebolag operates three online shops in Sweden (, and, as well as an affiliated brick-and-mortar specialist shop in Sundvall. They sell hunting equipment, fishing paraphernalia and dog accessories.

The owners are highly experienced internet entrepreneurs (with and, among other sites). KOEHLER Capital Partners GmbH acquired a significant minority stake in the company in 2017 and is supporting the existing team with the company’s further development.

Trendcarpet & Hatshop

Cama Gruppen AB operates two online shops (Trendcarpet and Hatshop) in Scandinavia, Germany, England, France, Belgium, Holland and Switzerland. These shops sell a wide range of textiles that offer excellent value for money.

Their owners are highly experienced Internet entrepreneurs, as well (with and, among other sites). KOEHLER Capital Partners GmbH acquired a significant minority stake in the company in 2016 and is supporting the existing team as they continue to develop the company.

Investments via private equity funds

Since 2016, the KOEHLER GROUP has been investing in private equity funds offered by well-known providers. The KOEHLER GROUP uses this investment capital to support outstanding privately owned companies as they grow and develop into market-leading global corporations.


The KOEHLER GROUP was able to support the following companies after the investment up to a successful exit.