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Our Mission
is to manage the rental and resale after delivery of reputable and reliable brand projects, to ensure that life commences as soon as possible for individuals with suitable profiles, and that projects increase in value.

Our Vision
is to develop products and services that will enable real estate investors to earn regular and high income on their investments without any pain or problems and to manage their properties.

Our Goal
We set up Experium to serve our mission and vision, use the most advanced technology, and leave the competition in the dust. We will add new brands to our journey that began with Nef and Eroğlu projects. We will ensure that these brands will be strong, sustainable and reputable brands like Nef and Eroğlu..

Our Way of Doing Business

Our Founder

Hakan Koçer

was born in Istanbul in 1967. He graduated from Kadıköy Maarif College in 1985 and from ITU Electronic Engineering School in 1989. As an entrepeneur at Arena, his personal experience taught him about distributing technology products, selling channels, the importance of keeping down costs, the difficulty of adapting SAP, the process of stock market quotations, the pains of company mergers, and all the risks thereof. He also experienced the economic crises of 1994 and 2001 and hence is well-versed in the cost of foreign exchange risks. The Arena adventure, which started with an annual turnover of $2 million USD, went through an IPO at the Istanbul Stock Exchange with a company value of $90 million USD and had reached an annual turnover of $260 million USD by the time Koçer left.

Koçer learned about product development with AirTies following his Arena experience, as well as the importance of R&D processes, differentiation of not only the product itself but also the cluster of services around it, brand positioning, the value of intellectual capital and the challenges of being a world brand. AirTies’ market share in Turkey climbed to 65% during the time Koçer was its general manager.

Homend, five years after beginning as a mere Powerpoint presentation, took its place in the market as an admired electrical home appliance brand. It taught Koçer how to create a reputable brand from scratch, how to develop and position new sales channels, and especially how to reach consumers over the internet.

Koçer stepped into the real estate development industry with Nef, initially as a consultant and later an executive. There, he gained experience in project development, demand creation and product launching, project specific construction and delivery, after sales services and site management. Koçer, who also conducted Nef’s real estate development work in the U.S. and Germany, left Nef to establish Experium in May 2017.

Koçer, who loves to cook and travel around the world, is married to Gamze Nalan and has two children.

Ozan Akın

Ozan Akın Consultant

Ozan Akın was born in 1992 in Istanbul. In 2010, he graduated from Istanbul MNA Anatolian High School and in 2016 from the Department of International Relations at Sakarya University. At Nef he served as a resale consultant for one year, where he acquired experience in portfolio management, customer relations, sales and after-sales solutions. He gained real estate experience by getting involved in the project delivery and reselling processes of the Nef 03, Nef 12, Nef 13 projects. Ozan Akın continues his career as a Real Estate Consultant at Experium.

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Betül Başgör

Betül Başgör Senior Consultant

She was born in 1987 in Istanbul. She started her professional life as a partner of Citipac Express, which has been active in the logistics/cargo industry since 2006. She was responsible for the management of advertising, marketing, public relations and customer service departments of the firm. The journey of Citipac Express began with a single warehouse in Istanbul and in a short while developed into seven large warehouses in Izmir, Ankara, Antalya, Denizli, Bursa and Manisa. It is now established and well-known in the industry. In mid-2013, she decided to get away from the intensive workload and the stress, so transferred her shares and took a break. She entered into the real estate industry with Coldwell Banker with which she became acquainted during the same period. Upon deciding to specialize in real estate, she took her real estate technical and sales training from leading experts in the industry. She has been involved in projects of luxury housing sales and in the resale of residential and commercial properties, where her work has been a resounding success. Today, her commercial and residential property expertise in sales and leasing and her achievement of absolute customer satisfaction has come together in her work as a Senior Real Estate Consultant in Experium Real Estate and Consultancy, which pursues special projects such as Nef.

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Büşra Öztin

Büşra Öztin Consultant

Büşra ÖZTİN was born in Istanbul in 1991. She finished Istanbul Ataturk Girls Technical and Anadolu Vocational High School in 2009. She later graduated from the Fashion and Design Department at Ege University in 2012. After graduating from university, with the goal of pursuing a career in the textile industry, Büşra Öztin started her professional life as a designer of accessories in a fashion house with overseas connections in Izmir. Following this work experience, in order to gain competence in customer relations, planning, production and manufacturing processes in the textile sector, she developed her career by becoming involved as a planning and customer representative officer with two different textile companies. In 2016, she became a customer relations officer responsible for developing customer data, determining delivery and production processes, designing activities and retail and corporate wholesale (architect's offices) in a furniture company by the name of Living Karma - Exclusive Furniture & Cafe/Juice Bar in Bali, Indonesia. The company operated with a detailed and meticulous production processes that is designed by an experienced design team. Büşra Öztin continues her career as a real estate investment consultant at Experium Real Estate. She likes visiting ceramic and sculpture exhibits, following art activities, frequently visiting bookstores and antique bookshops, and traveling and discovering new places at every opportunity.

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Onur Demir

Onur Demir Director

Onur Demir was born in 1978 in Istanbul. He attended Suadiye Turhan Mediha Tansel Elementary School and Ahmet Şimşek College before graduating from Anabilim High School. He graduated from the Department of Business Administration at Yeditepe University and was a founding member of Yeditepe Music Club, one of the university's first clubs, where for two years he acted as President. He also played an active role as a team leader for many events. During his time at university, he worked for organizations such as the OECD on a part-time basis to gradually prime himself for professional life. He began his professional career in 2003 at Truva Avize Sanayii, a family business, where he gained experience in production, design, marketing and sales. Onur Demir later became acquainted with Urban Transformation at the Erenköy branch of Truva Avize, and consequently found himself in the Real Estate industry. He then joined Coldwell Banker, where he completed his training and gained further experience. Afterwards, he began working for Central Property, a contracted Nef resale and rental company, proving his worth in real estate project sales and rentals. Having now started with the Experium Real Estate and Consulting firm, Onur Demir continues his career as the Director of Experium.

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Murat Korkmaz

Murat Korkmaz District Manager

Murat Korkmaz was born in 1978 in Istanbul, After completing his elementary school education at Lütfi Erçin Elementary School, he went to Saint Benoit French High School before graduating from the Department of French Language and Literature at Istanbul University. His career that started initially during his schooling, when he held a seasonal internship and later progressed to customer relations and assistance services in a professional capacity at foreign based companies, finally moved on to export and import companies. Through his special interest in the real estate industry, he has channeled the sales, marketing and customer management skills he acquired over a number of years and consequently has joined Coldwell Banker to become an accomplished Real Estate Investment Consultant. He has continued his development in the Commercial Property and Luxury residential fields, for which he has a particular talent. Today, he continues to advance in the industry in his capacity as the Regional Sales Manager of the Experium Real Estate and Consulting firm.

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Sibel Ergüne

Sibel Ergüne Consultant

Sibel Ergüne was born in Istanbul in 1991. In 2010, she completed the English Preparatory Course of Yeditepe University. She then graduated from Balıkesir University's Department of Tourism and Travel Management in 2015. She worked as a merchandising staff member at international firms during her time at high school. She used her time at university as an opportunity for voluntary internships at tourism and travel agencies. After graduating, she worked as a store manager at Pelit Pastacılık A.Ş. in 2016, where she trained herself in sales and customer relations. She received in-house training on sales and marketing techniques as well as leadership and problem solving techniques. Her interest in reading, researching and philosophy reflects positively on her personality and helped her develop her social skills as well as her energetic personality. Due to her special interest in the real estate industry, she moved into this field and started working at Experium Real Estate and Consultancy Firm as a Sales Consultant.

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Arman Gülyayla

Arman Gülyayla Consultant

Arman Gülyayla was born in Istanbul in 1979. In 1993, he finished Feriköy Secondary School. That same year, he started working in Gülyayla Apparel Manufacturing and Wholesale Company, which was established in 1976 and specialized in children's textiles.In 2013, the company ceased operations due to the monopoly of large firms and the downturn of the economy. He spent some time in the field of women's footwear e-commerce between 2013 and 2015, and was a manager at Sibel Akagay Tasarım Ayakkabı. Arman Gülyayla , who also ran a café business from 2015 to 2017, continues to provide consulting services at Experium Real Estate with his experience of nearly 24 years.

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Ayşe Nur Şirin

Ayşe Nur Şirin Consultant

Ayşe Nur Şirin was born in 1989 in Manisa. She graduated from Afyon Kocatepe University's Vocational School of Higher Education, where she specialized in computer technologies and programming in 2009. Immediately afterwards, she started her professional career in a computer company as a customer and technical service employee. She then worked for two years at a company that provided organizational services in bookkeeping and organization. Later, she continued to work as a sales consultant for a technology company. Şirin, who has targeted the construction industry after her career change decision, is currently continuing her career in Experium Real Estate and Consulting firm, dealing with the resale and rental of Nef and non-Nef project products.

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