Profile

Semiotik Design Agency (SDA) is the brainchild of designer and typographer Dimitris Koliadimas, a three time winner of Greece’s highest prize for visual communication.

After 20 years of studio leadership, Dimitris’ standing at the spearhead of Greece’s new guard continues to grow. Since opening in 2014, our agency has assembled a stellar roster of studio and freelance talent — steadily growing our reputation and repertoire by responding to the evolving needs of leading businesses, museums and institutions.

International recognition for our work spans multiple disciplines, and includes awards from D&AD, European Design Awards, Red Dot Design Awards, The Dieline, Pentawards, Type Directors Club and Art Directors Club of Europe.

At SDA, quality is a system, not an aspiration.
Certified under ISO 9001: 2015, we combine creative vision with rigorous processes to deliver design that is precise, consistent, and resilient. For our clients, this means identities that are not only beautiful and culturally intelligent, but also built to perform — empowering brands to inspire trust, adapt to change, and achieve lasting impact.

Services

Brand strategy and developmentBrand identity and architectureTypographyVisual systems and graphicsPublications and editorial designProduct and packaging designArt direction and photographyPresentationsSignage systemsEnvironmental designRetail and exhibition stagingInstallationsInteractive designMotion graphicsApp designBrand expression and voiceCommunication guidelinesNaming, taxonomy and taglinesMail and social media sequences
2025

Awards

2025
2025GreekCommunicationDesign Awards
Agency of the yearYessios Museum (1st Prize–Logotype)Yessios Museum (Merit–Flyer)Yessios Museum (Merit Space Graphics)Pavlos Pavlidis, Brancaleone LP (1st Prize Album Cover)
2025
2025GreekCommunicationDesign Awards
Agency of the yearYessios Museum (1st Prize–Logotype)Yessios Museum (Merit–Flyer)Yessios Museum (Merit Space Graphics)Pavlos Pavlidis, Brancaleone LP (1st Prize Album Cover)
2025
2025GreekCommunicationDesign Awards
Agency of the yearYessios Museum (1st Prize–Logotype)Yessios Museum (Merit–Flyer)Yessios Museum (Merit Space Graphics)Pavlos Pavlidis, Brancaleone LP (1st Prize Album Cover)
2025
2025GreekCommunicationDesign Awards
Agency of the yearYessios Museum (1st Prize–Logotype)Yessios Museum (Merit–Flyer)Yessios Museum (Merit Space Graphics)Pavlos Pavlidis, Brancaleone LP (1st Prize Album Cover)
2025
2025GreekCommunicationDesign Awards
Agency of the yearYessios Museum (1st Prize–Logotype)Yessios Museum (Merit–Flyer)Yessios Museum (Merit Space Graphics)Pavlos Pavlidis, Brancaleone LP (1st Prize Album Cover)
2025
2025GreekCommunicationDesign Awards
Agency of the yearYessios Museum (1st Prize–Logotype)Yessios Museum (Merit–Flyer)Yessios Museum (Merit Space Graphics)Pavlos Pavlidis, Brancaleone LP (1st Prize Album Cover)
Click to view
full list

Transforming brand experience and performance. Informed identity solutions for intrepid businesses.

Great structures need strong foundations. It’s a fundamental concept at the heart of Athens,
and the reason why curiosity and applied craftsmanship are central to everything we do.
We build world-class identity solutions by synthesizing intelligence with well-trained instincts. Every project is the outcome of research, rigor and cultural insight producing work informed by deep understanding of objectives, operating environment and opportunities for growth.
We believe in simple, functional, effective assets that empower our clients and anticipate the future. In times of radical change, identity’s building blocks are necessary constants. Brands need resilient tools and systems to embrace the new, adapt to culture, and pursue lasting greatness.

Lectures

2023
Sideline Remote
Birmingham Institute of Creative Arts
(Birmingham, England)
2019
The Design Process
Open University of Greece
(Athens, Greece)
2017
IFES World Summit
Piraeus Bank Group Cultural
Foundation (Athens, Greece)
2017
IFES World Summit
Piraeus Bank Group Cultural
Foundation (Athens, Greece)
2017
IFES World Summit
Piraeus Bank Group Cultural
Foundation (Athens, Greece)
2017
IFES World Summit
Piraeus Bank Group Cultural
Foundation (Athens, Greece)
2017
IFES World Summit
Piraeus Bank Group Cultural
Foundation (Athens, Greece)
Click to view
full list

Publications

2025
Poster Archive 200
Offcuts
2024
Sans In Use
Victionary
2023
Beyond Design
Sandu Publishing
2017
New Utilitarian
Victionary
2017
Étapes n°270 (Diplômes d’écoles d’art
et de design 2022)
Etapes Eds
2023
Beyond Design
Sandu Publishing
2017
New Utilitarian
Victionary
2017
Étapes n°270 (Diplômes d’écoles d’art
et de design 2022)
Etapes Eds
Click to view
full list

Exhibitions

2023
Red Dot Design Museum
permanent exhibition
Red Dot Design Museum (Singapore)
2022
Red Dot Design Museum
permanent exhibition
Red Dot Design Museum (Singapore)
2020
Red Dot Design Museum
permanent exhibition
Red Dot Design Museum (Singapore)
2019
Red Dot Design Museum
permanent exhibition
Red Dot Design Museum (Singapore)
2022
Red Dot Design Museum
permanent exhibition
Red Dot Design Museum (Singapore)
2020
Red Dot Design Museum
permanent exhibition
Red Dot Design Museum (Singapore)
2019
Red Dot Design Museum
permanent exhibition
Red Dot Design Museum (Singapore)
Click to view
full list
Click to view
full list

A record of great collaborations

Banking
and finance

AANG Group

Qualco Group

Food
and beverage

VOI wines

Consumer
products

Dust+Cream

Montegrappa

Bochery

Industry B2B

A2Γ Architects

Doppler

Elastic Architects

Furniture Gallery

IGM Constructions

Intrakat Constructions

KAVEX

Milkplan

Mutiny Architects

OTE Group

Trail Practice

Volvo Cars Corporation

Volvo Ocean Race

ZITAKAT Construction

Public sector

City of
Thessaloniki

Sport
and entertainment

Adidas Hellas

Euroleague Basketball

Hellenic Basketball

Clubs Association

Technology
and Innovation

Future Academy

Karoot

Culture
and education

Aristotle University of Thessaloniki

Costopoulos Foundation

European Design Awards

Fine Records

Greek Ministry of Culture

Institut Francais Thessaloniki

Konrad Adenauer Stiftung

Macedonian Museum of Contemporary Art

Museum of Cycladic Art

National Gallery of Greece

Nicosia International Festival

Qualco Foundation

State Museum of Contemporary Art

Teloglion Foundation

Thessaloniki Center of Contemporary Art

Thessaloniki Concert Hall

Thessaloniki Film Festival

Banking
and finance

AANG Group

Qualco Group

Food
and beverage

VOI wines

Consumer
products

Dust+Cream

Montegrappa

Bochery

Industry B2B

A2Γ Architects

Doppler

Elastic Architects

Furniture Gallery

IGM Constructions

Intrakat Constructions

KAVEX

Milkplan

Mutiny Architects

OTE Group

Trail Practice

Volvo Cars Corporation

Volvo Ocean Race

ZITAKAT Construction

Public sector

City of
Thessaloniki

Sport
and entertainment

Adidas Hellas

Euroleague Basketball

Hellenic Basketball

Clubs Association

Technology
and Innovation

Future Academy

Karoot

Culture
and education

Aristotle University of Thessaloniki

Costopoulos Foundation

European Design Awards

Fine Records

Greek Ministry of Culture

Institut Francais Thessaloniki

Konrad Adenauer Stiftung

Macedonian Museum of Contemporary Art

Museum of Cycladic Art

National Gallery of Greece

Nicosia International Festival

Qualco Foundation

State Museum of Contemporary Art

Teloglion Foundation

Thessaloniki Center of Contemporary Art

Thessaloniki Concert Hall

Thessaloniki Film Festival