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Research hubs

526cities with at least 50 indexed researchers. The city is the institution’s, so this is where the work is affiliated rather than where people live.

Cairo
Egypt · 118 institutions
50k
Giza
Egypt · 36 institutions
35k
Nairobi
Kenya · 151 institutions
26k
Pretoria
South Africa · 67 institutions
22k
Rabat
Morocco · 59 institutions
20k
Tunis
Tunisia · 67 institutions
20k
Johannesburg
South Africa · 99 institutions
20k
Addis Ababa
Ethiopia · 58 institutions
16k
Kampala
Uganda · 114 institutions
14k
Accra
Ghana · 84 institutions
14k
Algiers
Algeria · 45 institutions
13k
Ibadan
Nigeria · 14 institutions
13k
Alexandria
Egypt · 15 institutions
13k
Casablanca
Morocco · 46 institutions
11k
Al Mansurah
Egypt · 4 institutions
11k
Cape Town
South Africa · 70 institutions
10k
Dar es Salaam
Tanzania · 66 institutions
10k
Yaoundé
Cameroon · 45 institutions
10k
Rondebosch
South Africa · 2 institutions
10k
Stellenbosch
South Africa · 7 institutions
10k
Sfax
Tunisia · 11 institutions
10k
Durban
South Africa · 33 institutions
10k
Marrakesh
Morocco · 13 institutions
9k
Lagos
Nigeria · 23 institutions
9k
Abidjan
Côte d'Ivoire · 38 institutions
9k
Zagazig
Egypt · 1 institutions
9k
Nsukka
Nigeria · 1 institutions
8k
Dakar
Senegal · 55 institutions
7k
Khartoum
Sudan · 29 institutions
7k
Abuja
Nigeria · 52 institutions
7k
Port Harcourt
Nigeria · 4 institutions
7k
Fes
Morocco · 7 institutions
7k
Ado-Ekiti
Nigeria · 3 institutions
6k
Banhā
Egypt · 1 institutions
6k
Lusaka
Zambia · 37 institutions
6k
Tanta
Egypt · 2 institutions
6k
Kumasi
Ghana · 8 institutions
6k
Ilorin
Nigeria · 5 institutions
6k
Cotonou
Benin · 21 institutions
6k
Monastir
Tunisia · 3 institutions
6k
Maputo
Mozambique · 27 institutions
6k
Asyut
Egypt · 2 institutions
5k
Zaria
Nigeria · 2 institutions
5k
Shibīn al Kawm
Egypt · 3 institutions
5k
Ouagadougou
Burkina Faso · 26 institutions
5k
Kano
Nigeria · 7 institutions
5k
Awka
Nigeria · 4 institutions
5k
Kinshasa
DR Congo · 31 institutions
5k
Owerri
Nigeria · 6 institutions
5k
Sousse
Tunisia · 4 institutions
5k
Potchefstroom
South Africa · 1 institutions
5k
Calabar
Nigeria · 2 institutions
5k
Bloemfontein
South Africa · 5 institutions
5k
Oran
Algeria · 9 institutions
5k
Abeokuta
Nigeria · 6 institutions
4k
Kenitra
Morocco · 1 institutions
4k
Bamako
Mali · 16 institutions
4k
Ile-Ife
Nigeria · 5 institutions
4k
Ismailia
Egypt · 1 institutions
4k
Harare
Zimbabwe · 37 institutions
4k
Constantine
Algeria · 6 institutions
4k
Akure
Nigeria · 3 institutions
4k
Tétouan
Morocco · 2 institutions
4k
Benin City
Nigeria · 7 institutions
3k
Minya
Egypt · 2 institutions
3k
Meknes
Morocco · 4 institutions
3k
Agadir
Morocco · 4 institutions
3k
Bahir Dar
Ethiopia · 3 institutions
3k
Banī Suwayf
Egypt · 2 institutions
3k
Douala
Cameroon · 7 institutions
3k
Antananarivo
Madagascar · 21 institutions
3k
Uyo
Nigeria · 5 institutions
3k
Cape Coast
Ghana · 2 institutions
3k
Jimma
Ethiopia · 2 institutions
3k
Gaborone
Botswana · 21 institutions
3k
Oujda
Morocco · 4 institutions
3k
Kigali
Rwanda · 27 institutions
3k
Gonder
Ethiopia · 1 institutions
3k
Niamey
Niger · 14 institutions
3k
Jos
Nigeria · 7 institutions
3k
Enugu
Nigeria · 7 institutions
3k
Dschang
Cameroon · 1 institutions
3k
Butare
Rwanda · 2 institutions
3k
Annaba
Algeria · 1 institutions
3k
Ikeja
Nigeria · 3 institutions
3k
Tlemcen
Algeria · 2 institutions
3k
Brazzaville
CG · 9 institutions
3k
Eldoret
Kenya · 6 institutions
3k
Juba
SS · 5 institutions
2k
Sokoto
Nigeria · 3 institutions
2k
Tripoli
Libya · 7 institutions
2k
Ogbomoso
Nigeria · 1 institutions
2k
Luanda
Angola · 17 institutions
2k
Buea
Cameroon · 3 institutions
2k
Lilongwe
Malawi · 19 institutions
2k
Dire Dawa
Ethiopia · 2 institutions
2k
Lomé
TG · 10 institutions
2k
Kaduna
Nigeria · 5 institutions
2k
Ota
Nigeria · 1 institutions
2k
Windhoek
Namibia · 15 institutions
2k
Arusha
Tanzania · 14 institutions
2k
Awasa
Ethiopia · 3 institutions
2k
Abraka
Nigeria · 1 institutions
2k
Beni Mellal
Morocco · 1 institutions
2k
Morogoro
Tanzania · 6 institutions
2k
Béjaïa
Algeria · 2 institutions
2k
Maiduguri
Nigeria · 1 institutions
2k
Grahamstown
South Africa · 4 institutions
2k
Kafr ash Shaykh
Egypt · 1 institutions
2k
Sétif
Algeria · 2 institutions
2k
Mek'ele
Ethiopia · 1 institutions
2k
Batna City
Algeria · 2 institutions
2k
Tamale
Ghana · 3 institutions
2k
Sohag
Egypt · 2 institutions
2k
Al Fayyum
Egypt · 1 institutions
2k
Port Elizabeth
South Africa · 7 institutions
2k
Umuahia
Nigeria · 3 institutions
2k
Makurdi
Nigeria · 2 institutions
2k
Mbarara
Uganda · 5 institutions
2k
El Jadida
Morocco · 2 institutions
2k
Osogbo
Nigeria · 3 institutions
2k
Benghazi
Libya · 4 institutions
2k
Qina
Egypt · 1 institutions
2k
Abakaliki
Nigeria · 3 institutions
2k
Nakuru
Kenya · 5 institutions
2k
Sidi Bel Abbes
Algeria · 1 institutions
2k
Biskra
Algeria · 2 institutions
2k
Polokwane
South Africa · 3 institutions
2k
Damietta
Egypt · 1 institutions
2k
Conakry
Guinea · 12 institutions
2k
Settat
Morocco · 2 institutions
2k
Lubumbashi
DR Congo · 6 institutions
2k
Aryanah
Tunisia · 7 institutions
2k
Banjul
Gambia · 12 institutions
2k
Ho
Ghana · 4 institutions
2k
Bujumbura
Burundi · 14 institutions
1k
Paris
FR · 84 institutions
1k
Minna
Nigeria · 2 institutions
1k
Sagamu
Nigeria · 2 institutions
1k
Ondo
Nigeria · 4 institutions
1k
Blida
Algeria · 1 institutions
1k
Tizi Ouzou
Algeria · 2 institutions
1k
Ihiala
Nigeria · 1 institutions
1k
Bamenda
Cameroon · 4 institutions
1k
Manouba
Tunisia · 4 institutions
1k
Kisumu
Kenya · 9 institutions
1k
Bauchi
Nigeria · 1 institutions
1k
Alice
South Africa · 2 institutions
1k
Yola
Nigeria · 2 institutions
1k
Gabès
Tunisia · 2 institutions
1k
Bulawayo
Zimbabwe · 6 institutions
1k
Arba Minch
Ethiopia · 1 institutions
1k
Entebbe
Uganda · 7 institutions
1k
Libreville
GA · 7 institutions
1k
Mwanza
Tanzania · 5 institutions
1k
Boumerdas
Algeria · 2 institutions
1k
Mostaganem
Algeria · 1 institutions
1k
Ouargla
Algeria · 1 institutions
1k
Keffi
Nigeria · 1 institutions
1k
Debre Mark’os
Ethiopia · 1 institutions
1k
Bobo-Dioulasso
Burkina Faso · 8 institutions
1k
Roodepoort
South Africa · 2 institutions
1k
Ngaoundéré
Cameroon · 1 institutions
1k
Moka
MU · 6 institutions
1k
Dodoma
Tanzania · 6 institutions
1k
Mogadishu
Somalia · 14 institutions
1k
Aswān
Egypt · 1 institutions
1k
Dessie
Ethiopia · 1 institutions
1k
Zomba
Malawi · 3 institutions
1k
Freetown
Sierra Leone · 7 institutions
1k
Dekina
Nigeria · 1 institutions
1k
Port Said
Egypt · 1 institutions
1k
Maroua
Cameroon · 1 institutions
1k
Suez
Egypt · 1 institutions
1k
Aba
Nigeria · 3 institutions
1k
Winneba
Ghana · 1 institutions
1k
Empangeni
South Africa · 2 institutions
1k
Nazrēt
Ethiopia · 1 institutions
1k
Mohammedia
Morocco · 3 institutions
1k
Damanhur
Egypt · 1 institutions
1k
Thohoyandou
South Africa · 2 institutions
1k
Saint-Louis
Senegal · 2 institutions
961
Omdurman
Sudan · 6 institutions
945
Ikole-Ekiti
Nigeria · 1 institutions
941
Gulu
Uganda · 3 institutions
936
La Marsa
Tunisia · 3 institutions
918
Moshi
Tanzania · 5 institutions
910
N'Djamena
Chad · 6 institutions
905
Mthatha
South Africa · 5 institutions
901
São Tomé
São Tomé · 2 institutions
898
Sodo
Ethiopia · 1 institutions
893
Debre Birhan
Ethiopia · 1 institutions
883
Bangui
CF · 2 institutions
877
Sunyani
Ghana · 3 institutions
872
Kakamega
Kenya · 1 institutions
868
Bouaké
Côte d'Ivoire · 2 institutions
854
Yenagoa
Nigeria · 1 institutions
846
M'Sila
Algeria · 1 institutions
837
Molete
Nigeria · 1 institutions
829
Parakou
Benin · 1 institutions
828

About these figures

A snapshot of how OpenAlex classifies the published output of researchers by institution and broad subject. Sources: OpenAlex, HAL and DOAJ.

  • Counts are records, not verified people — roughly 6.7 % share a name with another record, so totals are an upper bound.
  • Subjects are classifications of published work, not skills anyone declared. Locations are the institution’s, not the person’s.
  • There is no time dimension: nothing here describes trends, growth or how recent a researcher’s work is.
  • Coverage reflects what OpenAlex indexes and what we collected — not a country’s research capacity.