Kenya's Top 2% Scientists 2023

Kenya has 52 scientists on the 2023 single-year Top 2% list, up 30.0% from 40 in 2022. That places Kenya 74th in the world by number of listed scientists, up 2 places. International Centre of Insect Physiology and Ecology Nairobi has the most listed scientists (6), followed by International Livestock Research Institute Nairobi (5).

Single Year

+12 (+30.0%) vs 2022

Career Data

+3 (+8.6%) vs 2022

World rank by count

#74

up 2 places vs 2022

Institutes

+10 (+58.8%) vs 2022

Scientists in Kenya on the list, by year

The single-year count has grown 53% since 2020.

Single-year list, change on the previous year

2021+14.7%

2022+2.6%

2023+30.0%

2024+9.6%

2025+21.1%

Show the numbers

Year	Single Year	Change	Career Data	Change
2020	34		34
2021	39	+14.7%	35	+2.9%
2022	40	+2.6%	35	+0.0%
2023	52	+30.0%	38	+8.6%
2024	57	+9.6%	38	+0.0%
2025	69	+21.1%	51	+34.2%

Top 10 institutes in Kenya

By number of listed scientists

Single-year list2023

Show the list

All 52 scientists

Single-year list2023

Everyone on the list, free to browse.

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Rank in Kenya	World rank	Scientist	Institute	Sub-field	Rank in sub-field
1	22,238	GD Grace, Delia	International Livestock Research Institute Nairobi	Microbiology	Rank 522
2	22,495	TM Temmerman, Marleen	The Aga Khan University	Obstetrics & Reproductive Medicine	Rank 115
3	23,535	PB Prasanna, Boddupalli M.	International Maize and Wheat Improvement Center (CIMMYT)	Plant Biology & Botany	Rank 328
4	43,188	KM Kassie, Menale	International Centre of Insect Physiology and Ecology Nairobi	Agricultural Economics & Policy	Rank 55
5	44,304	VB Vanlauwe, Bernard	International Institute of Tropical Agriculture (IITA)	Agronomy & Agriculture	Rank 295
6	47,727	ES Ekesi, Sunday	International Centre of Insect Physiology and Ecology Nairobi	Entomology	Rank 74
7	48,905	KM Kumar, Manasi	The Aga Khan University	Psychiatry	Rank 896
8	49,599	VW van Wijk, Mark	International Livestock Research Institute Nairobi	Agronomy & Agriculture	Rank 328
9	52,204	EP Ericksen, Polly J.	International Livestock Research Institute Nairobi	Agronomy & Agriculture	Rank 347
10	56,888	AA Abajobir, A.	African Population & Health Research Center	General & Internal Medicine	Rank 821
11	57,257	MK Marsh, Kevin	Centre for Geographic Medicine Research	Tropical Medicine	Rank 60
12	63,470	OD Obura, David O.	Coral Reef Degradation in the Indian Ocean East Africa	Marine Biology & Hydrobiology	Rank 369
13	76,347	GR Gyasi, Razak M.	African Population & Health Research Center	Public Health	Rank 845
14	92,947	OY Ouma, Yashon	Moi University	Geological & Geomatics Engineering	Rank 838
15	94,665	WD Western, David	African Conservation Centre	Ecology	Rank 1,719
16	96,208	LM Lance, Marcus	Aga Khan University Hospital, Nairobi	Cardiovascular System & Hematology	Rank 2,604
17	96,688	AR Adam, Rodney D.	The Aga Khan University	Microbiology	Rank 2,197
18	98,506	AA Alene, Arega	International Institute of Tropical Agriculture	Agricultural Economics & Policy	Rank 107
19	106,307	KZ Khan, Zeyaur R.	International Centre of Insect Physiology and Ecology Nairobi	Entomology	Rank 215
20	107,633	KS Kariuki, Samuel	Kenya Medical Research Institute	Microbiology	Rank 2,450
21	109,484	BE Barasa, Edwine	Wellcome Trust Research Laboratories Nairobi	Health Policy & Services	Rank 275
22	112,770	AA Albright, A. Leland	Africa Inland Church Kijabe Hospital	Neurology & Neurosurgery	Rank 5,280
23	119,652	SF Sinclair, Fergus L.	World Agroforestry Centre	Agronomy & Agriculture	Rank 800
24	120,866	IS Imathiu, Samuel	Jomo Kenyatta University of Agriculture and Technology	Food Science	Rank 1,289
25	126,299	DY Dibaba, Yohannes	African Population & Health Research Center	Obstetrics & Reproductive Medicine	Rank 818
26	126,426	ZE Zijlstra, Eduard E.	DNDi	Tropical Medicine	Rank 174
27	131,345	BJ Berkley, James A.	Wellcome Trust Research Laboratories Nairobi	General & Internal Medicine	Rank 1,621
28	141,612	FB Fields, Barry S.	Centers for Disease Control and Prevention	Microbiology	Rank 3,234
29	143,970	BP Bejon, Phillip	Wellcome Trust Research Laboratories Nairobi	Microbiology	Rank 3,282
30	146,356	SK Shepherd, Keith D.	World Agroforestry Centre	Agronomy & Agriculture	Rank 1,001
31	177,282	AD Amugsi, Dickson A.	African Population & Health Research Center	General & Internal Medicine	Rank 2,143
32	200,155	TB Torto, Baldwyn	International Centre of Insect Physiology and Ecology Nairobi	Entomology	Rank 459
33	221,440	FF Fasina, Folorunso O.	Food and Agriculture Organization, Kenya	Veterinary Sciences	Rank 476
34	239,533	NN Noah, Naumih M.	United States International University, Africa	Analytical Chemistry	Rank 2,077
35	250,180	DR Day, Roger	CABI, Kenya	Entomology	Rank 593
36	272,181	GA Githeko, Andew K.	Kenya Medical Research Institute	Tropical Medicine	Rank 465
37	275,474	OB Ogutu, Bernhards	Kenya Medical Research Institute	Tropical Medicine	Rank 474
38	289,258	KJ Kirigia, Joses Muthuri	African Sustainable Development Research Consortium (ASDRC)	Tropical Medicine	Rank 503
39	305,973	TC Tanga, Chrysantus M.	International Centre of Insect Physiology and Ecology Nairobi	Entomology	Rank 751
40	309,182	DF Davies, F. Glyn	British Overseas Development Administration	Veterinary Sciences	Rank 730
41	311,457	SE Sanders, Eduard J.	Wellcome Trust Research Laboratories Nairobi	Virology	Rank 1,866
42	320,947	NV Nene, Vishvanath	International Livestock Research Institute Nairobi	Mycology & Parasitology	Rank 494
43	347,652	Omara, Timothy	Moi University	Complementary & Alternative Medicine	Rank 126
44	375,056	MR Mrode, Raphael	International Livestock Research Institute Nairobi	Dairy & Animal Science	Rank 1,283
45	392,402	MD Masiga, Daniel	International Centre of Insect Physiology and Ecology Nairobi	Tropical Medicine	Rank 697
46	498,523	AP Ayeka, Peter A.	Egerton University	Complementary & Alternative Medicine	Rank 192
47	611,261	AS Akech, Samuel	Wellcome Trust Research Laboratories Nairobi	General & Internal Medicine	Rank 6,586
48	681,602	KS Kiama, Stephen	University of Nairobi	Anatomy & Morphology	Rank 130
49	683,705	WF Were, Fred	University of Nairobi	General & Internal Medicine	Rank 7,317
50	699,897	OJ Ogeng’o, Julius	University of Nairobi	Anatomy & Morphology	Rank 136
51	713,938	MA Makanya, Andrew N.	University of Nairobi	Anatomy & Morphology	Rank 140
52	978,718	NV Nyangaresi, Vincent Omollo	Tom Mboya University College	Networking & Telecommunications	Rank 12,612
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Showing 1 to 52 of 52 Show

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Single-year list2023

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Single-year list2023

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Frequently asked questions

How many scientists from Kenya are in the 2023 Stanford Top 2% list?

52 scientists affiliated with Kenya are on the 2023 single-year list, and 38 are on the career-long list.

Which institute in Kenya has the most Top 2% scientists?

On the 2023 single-year list, International Centre of Insect Physiology and Ecology Nairobi has the most listed scientists from Kenya, with 6. It is followed by International Livestock Research Institute Nairobi with 5.

How has the number of Top 2% scientists in Kenya changed since 2020?

On the single-year list, Kenya went from 34 scientists in 2020 to 52 in 2023, a change of +52.9%.

What is the difference between the single-year and career-long lists?

The single-year list ranks scientists on the citations their work received in one year. The career-long list ranks them on citations across their whole career. Both lists are published every year, and a scientist can be on one, both or neither.

What is the official source of this data?

The rankings come from the science-wide author databases of standardized citation indicators published by Ioannidis et al. in the Elsevier Data Repository, updated every year. TOPSCINET, an independent platform, organises that data by country, year, institute and field, so you can compare and explore it.