| 551 |
Kyoto University | Japan | academic | | | |
| 552 |
Kyoto University of Education | Japan | academic | | | |
| 553 |
Kyrgyztan National Thesis Repository | Kyrgyzstan | academic | | | |
| 554 |
Kyushu Institute of Technology | Japan | academic | | | |
| 555 |
Kyushu University | Japan | academic | | | |
| 556 |
Laboratório Nacional de Energia e Geologia (LNEG) | Portugal | research center | | | |
| 557 |
Lafayette College | United States | academic | 1.6.x XML Manakin | | |
| 558 |
Lahore University of Management Sciences | Pakistan | academic | 1.6.x JSP | | |
| 559 |
Lancaster Theological Seminary | United States | academic | | | |
| 560 |
Landspitali University Hospital | Iceland | medical center hospital | | | |
| 561 |
LASR_Bucknell University | United States | consortium | | | |
| 562 |
LASR_Carleton College | United States | consortium | | | |
| 563 |
LASR_Grinnell College | United States | consortium | | | |
| 564 |
LASR_Liberal Arts Scholarly Repository | United States | consortium | 1.7.x JSP | | |
| 565 |
LASR_St. Lawrence University | United States | consortium | | | |
| 566 |
LASR_Trinity University | United States | consortium | | | |
| 567 |
LASR_University of Richmond | United States | consortium | | | |
| 568 |
LASR_Whitman College | United States | consortium | | | |
| 569 |
Latin American Knowledge Harvester | United States | academic | 1.6.x XML Manakin | | |
| 570 |
Laurentian University | Canada | academic | 1.7.x XML Manakin | | |
| 571 |
laws | United States | commercial | 1.6.x JSP | | |
| 572 |
Lebanese American University | Lebanon | academic | 1.6.x XML Manakin | | |
| 573 |
le bon coin | France | academic | 1.4.x | | |
| 574 |
Leiden University | Netherlands | academic | | | |
| 575 |
Lessius Hogeschool | Belgium | academic | | | |
| 576 |
lgwebsolutions.com | Germany | commercial | 1.7.x JSP | | |
| 577 |
Library Information Consortium Association of Kyrgyzstan | Kyrgyzstan | consortium | | | |
| 578 |
Libre Acces aux RApports scientifiques et techniques, CNRS-INIST | France | research center | | | |
| 579 |
Lincoln University | New Zealand | academic | 1.5.x JSP | | |
| 580 |
Liquid Propulsion Systems Centre, Indian Space Research Organization | India | government | 1.5.x XML Manakin | | |
| 581 |
Lithuanian University of Agriculture | Lithuania | academic | 1.6.x JSP | | |
| 582 |
London School of Economics and Political Science | United Kingdom | academic | | | |
| 583 |
Los Alamos National Laboratory | United States | government | | | |
| 584 |
Loughborough University | United Kingdom | academic | 1.6.x JSP | | |
| 585 |
Louisiana Board of Regents | United States | government | 1.3.x and earlier | | |
| 586 |
Lovelace Respiratory Research Institute | United States | research center | 1.6.x XML Manakin | | |
| 587 |
Lufthansa Systems | Germany | commercial | | | |
| 588 |
Luhansk Taras Shevchenko National University | Ukraine | academic | 1.8.x JSP | | |
| 589 |
Lviv National University, Centre for the Anthropos | Ukraine | academic | | | |
| 590 |
Lviv Polytechnic National University | Ukraine | academic | 1.8.x JSP | | |
| 591 |
M.S.Ramaiah Institute of Technology | India | academic | 1.4.x | | |
| 592 |
Madan Puraskar Pustakalaya | Nepal | archive public library | 1.6.x XML Manakin | | |
| 593 |
Maison des Sciences de l'Homme-Alpes | France | research center | | | |
| 594 |
Makerere University | Uganda | academic | 1.8.x XML | | |
| 595 |
Malmö University | Sweden | academic | 3.x XML | | |
| 596 |
Management Development Institute | India | academic | | | |
| 597 |
Manchester Metropolitan University | United Kingdom | academic | | | |
| 598 |
Marine Biological Laboratory Woods Hole Ocenographic Institution | United States | research center | 1.7.x XML Manakin | | |
| 599 |
Marine Institute | Ireland | research center | | | |
| 600 |
Masaryk University | Czech Republic | academic | 1.6.x JSP | | |