I think that algaplus in Portugal

http://www.algaplus.pt/

I would recommend you contact John Bolton in South Africa, Amir Neori in Israel, and Dennis Hanisak in the USA. Email me ([email protected]) and I will give you their contacts.

Check it https://www.researchgate.net/profile/Lineekela_Kandjengo2/publication/226539583_Growing_Ulva_(Chlorophyta)_in_integrated_systems_as_a_commercial_crop_for_abalone_feed_in_South_Africa_a_SWOT_analysis._J_Appl_Phycol/links/00b7d516f96d1a0978000000.pdf

Article Growing Ulva (Chlorophyta) in integrated systems as a commer...

See also these guys

http://www.seakura.net/

Dear Vaibhav, 

After your advice on tube nets yesterday I came across this recent paper by Prof Renata Reis that will be of interest. 

Article Ulva lactuca and U. flexuosa (Chlorophyta, Ulvophyceae) cult...

Thanks to all for responding to my query, I am aware of most of the work, Dr. Amir Neori, is one of the collaborators with my colleague here and I know Prof. Renata's work too. We indeed cultivated Ulva and Enteromorpha (although both the genera have been merged now) on experimental scale.

I would be more interested to know, if there are any commercial farms of Ulva in open waters, any where in the world - like that of Monostroma in Japan. We being the developing country, would not afford to invest at this stage in land based cultivation techniques.     

Dear sir, Thanks for you question. me too leaned many things from this conversation. thank you

*Dear Dr. Mantri;

We cultivate around 50 Metric tonnes Ulva lactuca/annum at Netherlands Lattitude at our experimental facilities in Lelystadt the Netherlands. Especially in developing countries with solely maximal solar irradiance, cheap land (desert), oceanic water and seaweeds the investment costs are low. If you send me your E-mail address I can send you iamges and more detailed proposal maybe for an EU-grant Horizon with Prof. Neori.

All the best Dr.Dr.Ir. Vincent van Ginneken (PhD-1; PhD-2; MSc); Chairman and Scientific Director Blue Green Technologies Foundation www.bluegreentechnologies.nl

E-mail: [email protected]; in press: Fish & Fisheries "Commentary: "Towards a Seaweed Based Economy": The Global Ten Billion People Issue at the Midst of the 21st Century" (draft attached)

A bit late, but here are some additions:

La Huerta Marina in Cartaya (Huelva), Spain is apparently producing several tonnes annually in tanks, have plans to visit this place soon: http://lahuertamarina.com/gb/ for their webshop

Furthermore there is a Dutch company, Zeewaar, cultivating over there since 2013, saying they grow several tonnes annually as well.

Another company, http://seaweedharvestholland.nl/english.html, seems to have big plans, don't know how far they as yet.

Cheers, Erik

Thanks Erik for the information.

Dear Dr. Mantri,

I have just come across this conversation thread and, though a bit belatedly, I would also like to let you know about our company Investalga, located in northern Spain. We also cultivate Ulva in tanks inland, I´m afraid, but would be glad to help or collaborate if you found it fitting. Please visit our webpage: www.investalga.com, and contact us if you need any further info.

Kind regards,

Lara

DBT-ICT Centre for Energy Biosciences at Institute of Technology, Mumbai has competencies for both cultivation of Ulva on land-based system and downstream process to recover multiple products. These technologies have been tested and evaluated on certain scales.

Please have a look at these useful RG links.

Article Cultivation of Ulva lactuca with manure for simultaneous bio...

Article Production and Uses of Ulva armoricana: The South African Perspective

Article Biomass and potential commercial utilization of Ulva lactuca...

Article Tank cultivation of Ulva prolifera in deep seawater using a ...