Tacis P. Gavoyannis

BusinessGreen staff
clock • 1 min read

Tacis  Gavoyannis has more than 30 years of marketing and international business development experience in telecoms, datacoms and Smart City sectors, having worked in a range of senior management roles for British Telecom International, Motorola, Cable & Wireless, Mercury Communications, RR Donnelley, De La Rue Systems Ltd, Callahan Broadband Wireless Inc, Orange PLC, TNS PLC,  Siemens PLC, and Smart City Partners Ltd.

Tacis' expertise covers all Smart City Challenges, fixed and mobile communications, cable, broadband, and Internet of Things. He has played key roles in winning and setting up the operations for both GSM and WiLL licenses. In addition, he has set up operational divisions in a number of European countries for mobile and wireless local loop start ups. He has been involved in the selection and negotiation of dealer networks and has experience with operators globally, helping many companies enter new markets and extend their product line.

Tacis has founded companies in leisure and high tech the latest being a software streaming application for connected TV  www.tvmobili.com

Engaged in strategic consultancy and business transformation within www.Siemens.com on Smart Communities and Smart Cities solutions in particular Community Energy, Electric Vehicles, micro grid solutions and Internet of Things.

He is a futurologist and researcher able to bring value to technology players worldwide. He has particular interests in Smart Cities, Telemedicine, IoT, New Energy and Smart Transport.

He is also a Fellow of the RSA and a mentor with Springboard Internet of things in Cambridge Springboard Accelerator.

More on Investment

National Wealth Fund to invest over £100bn in industries driving clean energy growth

National Wealth Fund to invest over £100bn in industries driving clean energy growth

Fresh funding expected to create and support more than 200,000 jobs, while saving 500 million tonnes of CO2 emissions by 2050

Stuart Stone
clock 28 January 2026 • 3 min read
Low Carbon raises £500m for European renewables pipeline

Low Carbon raises £500m for European renewables pipeline

New funding package to help drive clean energy company’s expansion plans in the UK, Germany, and Poland

clock 28 January 2026 • 2 min read
UK backs ocean protection and climate poverty projects with £14m funding

UK backs ocean protection and climate poverty projects with £14m funding

At least eight projects backed by OCEAN Grants Programme to protect marine habitats, improve food security, and support thousands of jobs

Stuart Stone
clock 26 January 2026 • 3 min read