Top Institutionals

World Rank	Portal	Country	Size	Visibility	Files Rich	scholar
1	(1) Smithsonian/NASA Astrophysics Data System		1	1	1181	1
2	(1) CERN Document Server		15	3	1	7
3	Universidade de São Paulo Biblioteca Digital de Teses e Dissertações		69	8	13	2
4	Virginia Tech University Digital Library and Archives		366	2	50	95
5	HAL Institut National de Recherche en Informatique et en Automatique Archive Ouverte		66	10	7	19
6	University of California eScholarship Repository		328	7	20	15
6	HAL Sciences de l'Homme et de la Société		59	11	49	18
8	MIT Institutional Repository		102	9	14	34
9	NASA Technical Reports Server		43	4	2	222
10	Universiteit Utrecht Igitur Archive		328	18	11	4
11	(1) Universitat Autònoma de Barcelona Dipòsit Digital de Documents		65	20	5	11
12	Universitat Politécnica de Catalunya UPCommons		53	29	17	5
13	University of Southampton Institutional Repository		158	12	68	65
14	Queensland University of Technology Institutional Repository		132	19	81	28
15	Digital CSIC		37	22	40	46
16	University of Michigan Deep Blue		71	15	19	160
17	Universidad de los Andes (Venezuela) Repositorio Institucional		19	21	39	84
18	National Taiwan University Repository		52	23	61	56
19	Institut Teknologi Sepuluh Nopemeber Repository		5	185	3	3
20	Repositório Digital Universidade Federal do Rio Grande do Sul LUME		99	66	12	15
21	University of Queensland UQ eSpace		42	47	41	43
22	Dissertations of the University of Groningen		393	28	30	72
23	Universidade do Minho Repositorium		24	53	101	36
24	University of Illinois at Urbana Champaign Ideals		9	60	31	71
25	Diponegoro University Institutional Repository		225	85	27	9
26	University of Toronto T Space		263	31	88	55
27	University of North Texas Digital Library		8	17	125	315
27	Goteborg University Open Archive		415	39	73	32
29	Georgia Tech's Institutional Repository		21	59	23	77
30	Humboldt Universitat zu Berlin Publikationsserver		304	16	104	176
31	Aalborg Universitet VBN Research		7	30	200	153
32	University of British Columbia CIRCLE		76	92	15	33
33	Oregon State University ScholarsArchive@OSU		4	44	32	191
34	Universidad Complutense de Madrid e-Prints		190	26	138	121
35	Leiden University Digital Repository		148	35	42	139
36	Universitetet i Oslo Digitale Publikasjoner		129	102	64	22
37	Universidad de Alicante Repositorio Institucional		95	38	99	138
38	Ludwig Maximilians Universitat Munchen Dissertationen		181	32	142	110
39	Universitat Heidelberg Dokumentenserver		235	24	123	161
40	Ohio State University Knowledge Bank		125	37	69	172
41	Katholieke Universiteit Leuven Lirias Repository		32	106	98	29
42	Université de Liège Open Repository and Bibliography ORBi		20	91	186	44
43	Repositorio Escuela Superior Politécnica del Litoral		137	87	38	60
44	University of Nebraska Lincoln DigitalCommons		242	13	1240	41
45	Universität Wien Diplomarbeiten und Dissertationen		767	79	114	13
46	University of Helsinki HELDA		297	62	97	62
47	Elektronische Hochschulschriften Universität Stuttgart		531	27	206	136
48	JAMSTEC Repository Japan Agency for Marine-Earth Science and Technology		73	5	103	827
49	Bogor Agricultural University Scientific Repository		96	238	4	14
50	Universitas Muhammadiyah Surakarta Digital Library		164	265	16	6
51	Georg August Universität Gottingen Dokumentenserver		617	25	72	236
52	Universiti Teknologi Malaysia Institutional Repository		447	57	130	79
52	University of Pretoria Electronic Theses and Dissertations		668	45	55	119
54	École Polytechnique Federale de Lausanne Infoscience		61	55	56	251
54	Kyoto University Research Information Repository		38	89	6	202
56	Erasmus University Repository		163	104	84	66
57	University of Saint Gallen Forschungsplattform Alexandria		88	86	26	157
58	LSE Research Online London School of Economics and Political Science		380	54	240	107
59	TDL Repository Texas Digital Library Repository		50	287	46	8
60	Open Research Online		81	67	340	126
61	Universidad Politécnica de Madrid Archivo Digital		246	95	171	69
62	University of Technology Sydney Press Institutional Repository		132	73	377	93
63	National Central University (Taiwan) Institutional Repository		44	77	1039	21
64	Gunadarma University Repository		715	48	390	80
65	University of Oregon Scholars' Bank		87	52	177	244
66	Kansas State University Research Exchange		94	111	167	91
67	University of Ghent Institutional Archive		12	244	151	23
68	Jyväskylä University Digital Archive		318	82	115	121
69	UCL Discovery University College London		128	97	263	96
70	University of Maryland Digital Repository DRUM		364	90	124	121
71	Adelaide Research & Scholarship University of Adelaide		114	125	29	198
72	Repositorio Digital de la Escuela Politécnica del Ejército		138	127	194	111
73	Universitat München Elektronischen Publikationen		267	36	148	452
74	University of Hawai'i at Manoa ScholarSpace		32	80	52	406
75	Universidad Nacional de Colombia Repositorio Institucional		184	175	92	86
76	Freiburger Dokumentenserver Universitätsbibliothek Freiburg		665	50	196	252
77	Delft University of Technology Repository		318	126	60	153
78	Materials Digital Library		334	14	45	923
79	National Chengchi University Repository		187	139	25	200
80	University of South Africa Institutional Repository		56	138	158	168
81	Gredos Repositorio Documental Universidad de Salamanca		151	192	190	67
82	Natural Environmental Research Council Open Research Archive		103	101	274	207
83	University of Twente Repository		332	140	48	169
84	Universitat Duisburg Essen Publications Online DuEPublico		191	118	80	238
84	Stellenbosch University Scholar Repository		28	194	168	120
86	Tartu University Library Institutional Repository		299	84	134	276
87	Kyushu University Institutional Repository		313	141	65	173
88	Chalmers Publication Library		409	161	282	63
89	Universiteit van Amsterdam Digital Academic Repository		188	43	1274	39
90	Electronic Publication Alfred Wegener Institute for Polar and Marine Research		234	98	212	218
91	Horizon Publications scientifiques Institut de recherche pour le développement		580	65	21	429
92	Universidad Carlos III de Madrid e-Archivo		156	158	110	165
93	Kharkov National Academy of Municipal Economy Repository		323	293	93	27
94	University of Minnesota Digital Conservancy		394	149	109	134
95	Purdue University DigitalCommons		432	33	1222	86
96	York University YorkSpace		118	72	514	302
97	Hokkaido University Collection of Scholarly and Academic Papers		71	113	35	415
98	Swedish University of Agricultural Sciences Epsilon Open Archive		352	201	199	72
99	DIGITUM Depósito Digital Institucional Universidad de Murcia		108	94	288	324
100	Universidade de Brasília Repository		83	310	140	58

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