Algal Culture Collections:

Europe

• SAG (Sammlung fur Algenkulturen) – Germany
• CCAC (Central Collection of Algal Cultures; previously Cologne Algal Culture Collection) – Germany
• CCCryo (Culture Collection of Cryophilic Algae) – Germany
• MZCH-SVCK (Microalgae and Zygnematophyceae Collection Hamburg Sammlung von Conjugaten-Kulturen) – Germany
• CAUP (Culture Collection of Algae of Charles University of Prague – Czech Republic
• CCALA (Culture Collection of Autotrophic Organisms) – Czech Republic
• RCC (Roscoff Culture Collection) – France
• PCC (Pasteur Culture Collection of Cyanobacteria) – France
• Algobank Caen (Collection de Cultures de Microalgues – Universite de Caen Normandie) – France
• BCCM/DCG (Belgian Co-ordinated Collections of Micro-organisms: Microalgae) – Belgium
• BCCM/ULC (Belgian Co-ordinated Collections of Micro-organisms: Cyanobacteria) – Belgium
• BCCM (Basque Microalgae Culture Collection) – Spain
• BEA (Banco Espanol de Algas) – Spain
• CCVIEO Culture Collection, focused on HAB species – Spain 
• ACOI (Coimbra Collection of Algae) – Portugal
• CCBA (Culture Collection of Baltic Algae) – Poland
• SZCZ (Szczecin Diatom Culture Collection) – Poland
• NORCCA (Norwegian Culture Collection of Algae at NIVA, incorporating cultures from the former SCCAP) – Norway
• TAU-MAC (Aristotle University of Thessaloniki Microalgae and Cyanobacteria Culture Collection) – Greece
• IPPAS Culture Collection (Institute of Plant Physiology, Russian Academy of Sciences) – Russia
• MACC (Mosonmagyarovar Algal Culture Collection) – Hungary
• Marine Biological Association – UK

North America & Canada

• UTEX (Culture Collection of Algae at the University of Texas at Austin) – USA
• NCMA (National Center for Marine Algae and Microbiota, Bigelow; previously CCMP) – USA
• ATCC (Americal Type Culture Collection) – USA
• ARC (Algal Resources Collection – focused on HAB species) – USA
• Antarctic Protist Culture Collection – USA
• Chlamydomonas Resource Center – USA
• Tetrahymena Stock Center – USA
• CCCM (Canadian Center for the Culture of Microorganisms) – Canada
• CPCC (Canadian Phycological Culture Centre for Algae, Cyanobacteria and Lemna at the University of Waterloo) – Canada

Australia & New Zealand

• ANACC (Australian National Algae Culture Collection) – Australia
• CICCM (Cawthron Institute Culture Collection of Microalgae) – New Zealand

Asia

• NIES Microbial Culture Collection – Japan
• KU-MACC (Kobe University Macroalgal Culture Collection) – Japan
• TISTR Culture Collection (Thailand Institute of Scientific and Technological Research) – Thailand
• FACHB (Freshwater Algae Culture Collection at the Institute of Hydrobiology) – China

Culture Collection Information

• UKBRCN – The United Kingdom Biological Resource Centre Network
• ECCO – European Culture Collections’ Organisation
• WFCC – World Federation for Culture collections
• WDCM – WFCC-MIRCEN World Data Center for Microorganisms
• WDCM-GCM – global catalogue of strains (covers all types of  microorganisms)

Growth Media

• MediaDive – the world’s largest collection of cultivation media

General Phycology and Protistology:

• British Phycological Society (BPS)
• Algae-UK – a network supporting researchers and others interested in the exploitation of algal products and processes in industrial biotechnology
• Phycological Society of America
• Protistology UK – formerly the British Society for Protist Biology
• Algal Information Network – developed by EnAlgae to support the development of the algae sector in Europe, part of the GENIALG project
• Chlamydomonas Resource Centre
• My Seaweed Looks Weird – a portal to report diseased algae
• AlgaeVision – database and virtual collection of images of freshwater and terrestrial algae collected in Britain and Ireland
• The Fritsch Collection of Freshwater, Brackish and Terrestrial Algal Illustrations
• Algae World – information on algae, especially the research and teaching at the Royal Botanic Garden Edinburgh.

Suppliers of bulk cultures and concentrates, and/or photobioreactors:

• Varicon Aqua (UK) 
• Algenuity (UK)
• Industrial Plankton (USA)
• Reed Mariculture  (USA)

Taxonomy and Classification resources:

• AlgaeBase – global algal database of taxonomic, nomenclatural and distributional information
• CyanoDB – online database of cyanobacterial genera
• DiatomBase – online database of diatom genera and information
• Diatom Flora of Britain and Ireland – web-based diatom flora and comprehensive taxonomic review of diatoms in the British Isles
• WORMS – World Register of Marine Species