Company lists · Data refreshed September 2026

Top 25 Sustainable development firms based in Kenya

Name: Sustainable development firms based in Kenya
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 159 companies tracked

RevenueBase identified 159 sustainable development firms headquartered in Kenya as of September 2026 and tracks 733 professional contacts across them, including 70 with verified work emails. Nairobi is the largest hub.

This list covers sustainable development firms headquartered in Kenya, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review

159Companies

733Contacts tracked

70Verified emails

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The 25 largest sustainable development firms based in Kenya

Ranked by team size

Top 25 of 159 sustainable development firms based in Kenya, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable development firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Questworks	Indirect evidence	Nairobi, KenyaHQ checked Sep 22, 2026	11-50	67 contacts →
	Indirect evidence “QuestWorks is a firm of consultants in the real estate industry and Renewable Energy.” Source: RevenueBase Database · checked Sep 22, 2026
2	Sustainet Group LTD	Indirect evidence	Nairobi, KenyaHQ checked Sep 22, 2026	11-50	27 contacts →
	Indirect evidence “Established in 2012, SustaiNet Group is headquartered in Nairobi, Kenya and operates a Country Office in Kampala, Uganda.” Source: RevenueBase Database · checked Sep 22, 2026
3	Kurrent Technologies LTD	Indirect evidence	Nairobi, KenyaHQ checked Sep 22, 2026	11-50	25 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
4	Kcic Consulting Limited KCL	Strong evidence	Nairobi, KenyaHQ checked Sep 22, 2026	11-50	23 contacts →
	Strong evidence “KCIC Consulting is a multidisciplinary professional services firm that specializes in providing advisory support for sustainable development initiatives.” Source: RevenueBase Database · checked Sep 22, 2026
5	Rural Focus Limited	Indirect evidence	Nanyuki, KenyaHQ checked Sep 22, 2026	11-50	19 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
6	Koei Africa Co. LTD	Indirect evidence	Nairobi, KenyaHQ checked Sep 22, 2026	51-200	18 contacts →
	Indirect evidence “At Koei Africa Co.” Source: RevenueBase Database · checked Sep 22, 2026
7	Gauff Consultants Africa	Indirect evidence	Nairobi, KenyaHQ checked Sep 22, 2026	11-50	17 contacts →
	Indirect evidence “A leading civil, structural, mechanical, and electrical engineering and project management consultancy with 50+ years experience in East and Southern Africa.” Source: RevenueBase Database · checked Sep 22, 2026
8	OIL & Energy Services LTD	Indirect evidence	Nairobi, KenyaHQ checked Sep 22, 2026	1-10	17 contacts →
	Indirect evidence “Oil and Energy Services Limited is the premier consulting firm founded in 2011 which has since been working in the Eastern Africa region on projects that would enhance the…” Source: RevenueBase Database · checked Sep 22, 2026
9	Ecoscience & Engineering LTD	Partial evidence	Nairobi, KenyaHQ checked Sep 22, 2026	11-50	14 contacts →
	Partial evidence “Ecoscience & Engineering Ltd is a Company established to offer Environmental Sustainability, Climate Change, Safety Professional Services and Solutions.” Source: RevenueBase Database · checked Sep 22, 2026
10	Takataka NI Mali	Strong evidence	Nairobi, KenyaHQ checked Sep 22, 2026	11-50	10 contacts →
	Strong evidence “TakaTaka Ni Mali is a leading organisation contributing positively to the advancement of sustainable development by organising the ecosystem to ensure its green and clean.” Source: RevenueBase Database · checked Sep 22, 2026
11	Impact Africa Consulting Limited	Strong evidence	KenyaHQ checked Sep 22, 2026	11-50	10 contacts →
	Strong evidence “Impact Africa Consulting Limited is a leading sustainability and strategy advisory firm that support businesses, investors, governments, and development partners.” Source: RevenueBase Database · checked Sep 22, 2026
12	Sandrose LTD	Indirect evidence	Nairobi, KenyaHQ checked Sep 22, 2026	1-10	10 contacts →
	Indirect evidence “SandRose is a project management and consultancy firm, incorporated in the Republic of Kenya, specialising in supporting infrastructure projects across Africa, with a specific…” Source: RevenueBase Database · checked Sep 22, 2026
13	Cusum Energy	Partial evidence	Nairobi, KenyaHQ checked Sep 22, 2026	1-10	10 contacts →
	Partial evidence “Energy efficiency \| Renewable energy \| Green Buildings \| ESG \| Sustainability \| Circular Economy \| Building Services Consultants” Source: RevenueBase Database · checked Sep 22, 2026
14	Pleng Limited	Indirect evidence	Nairobi, KenyaHQ checked Sep 22, 2026	11-50	8 contacts →
	Indirect evidence “PLeng Limited is registered and incorporated under the Companies (Act.” Source: RevenueBase Database · checked Sep 22, 2026
15	Centafrique Consulting	Partial evidence	Nairobi, KenyaHQ checked Sep 22, 2026	11-50	6 contacts →
	Partial evidence “Centafrique Consulting is a leading regional player in enterprise development, business advisory, research, capacity development and project management consulting.” Source: RevenueBase Database · checked Sep 22, 2026
16	Debi Consulting Associates	Partial evidence	Nairobi, KenyaHQ checked Sep 22, 2026	1-10	6 contacts →
	Partial evidence “DeBi Consulting Associates Limited (“DeBi”), Founded in 2013, is a Nairobi based boutique development and business consulting company.” Source: RevenueBase Database · checked Sep 22, 2026
17	Moad Capital	Indirect evidence	Nairobi, KenyaHQ checked Sep 22, 2026	1-10	6 contacts →
	Indirect evidence “Moad Capital is a niche business with a rich culture of providing independent Real Estate advice and implementation, Energy and Consultancy services primarily in the East African…” Source: RevenueBase Database · checked Sep 22, 2026
18	Isowatt Engineering	Indirect evidence	Nairobi, KenyaHQ checked Sep 22, 2026	1-10	4 contacts →
	Indirect evidence “Incorporated in May 2017, Isowatt Engineering is a Kenyan based premium engineering company, providing professional services in the energy sector.” Source: RevenueBase Database · checked Sep 22, 2026
19	Amriya Energy	Partial evidence	Nairobii, KenyaHQ checked Sep 22, 2026	1-10	3 contacts →
	Partial evidence “Amriya is a service company with a focus on sustainable energy.” Source: RevenueBase Database · checked Sep 22, 2026
20	Intermedia Development Consultants IDC	Partial evidence	Nairobi, KenyaHQ checked Sep 22, 2026	1-10	3 contacts →
	Partial evidence “iDC (Intermedia Development Consultants) is a Kenya-registered company founded in 1988 as, simply, Intermedia.” Source: RevenueBase Database · checked Sep 22, 2026
21	Tierranjani Africa LTD	Strong evidence	Nairobi, KenyaHQ checked Sep 22, 2026	1-10	2 contacts →
	Strong evidence “Tierranjani Africa is a Sustainable Tourism Development firm that focuses on building capacity for tourism and travel related organisations, tourism associations, destinations…” Source: RevenueBase Database · checked Sep 22, 2026
22	Climate And Energy Advisory	Indirect evidence	Nairobi, KenyaHQ checked Sep 22, 2026	11-50	1 contacts →
	Indirect evidence “Climate and Energy (C&E) Advisory, formerly Camco Advisory Services (K) Ltd, is a Kenyan registered international environmental consultancy firm founded in 1989.” Source: RevenueBase Database · checked Sep 22, 2026
23	Soluzioni Sostenibili DI Energia	Partial evidence	Nairobi, KenyaHQ checked Sep 22, 2026	1-10	1 contacts →
	Partial evidence “Soluzioni Sostenibili Di Energia (SSDE) is a Kenyan limited liability company registered in 2012 that aspires to influence the socio-economic development and environmental…” Source: RevenueBase Database · checked Sep 22, 2026
24	Leadwood Energy	Indirect evidence	Nairobi, KenyaHQ checked Sep 22, 2026	1-10	1 contacts →
	Indirect evidence “Leadwood Energy Limited is an award winning specialist energy advisory company with a special focus on the Renewable Energy sector in emerging markets.” Source: RevenueBase Database · checked Sep 22, 2026
25	Kisasa ESG Consultants	Indirect evidence	Nairobi, KenyaHQ checked Sep 22, 2026	1-10	1 contacts →
	Indirect evidence “Given the speed at which the environmental and social safeguard (E&S) industry is changing globally, ‘Kisasa Environmental, Social and Governance (ESG) Consultants’ (also referred…” Source: RevenueBase Database · checked Sep 22, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: sustainable development firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names sustainable development firms.
Partial evidence: Its own public description names part of sustainable development firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable development firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 159 sustainable development firms based in Kenya

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Sustainable development firms based in Kenya at a glance

As of Sep 22, 2026

9.5%Verified-email coverage

4.6Average contacts per company

1-10Median size (employees)

83.6%Largest-city concentration · Nairobi

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured worldwide rather than for Kenya, so it is reported there. Company counts and contact totals on this page are exact for Kenya, over 159 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among sustainable development firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Kenya whose own description of what they do matches “sustainable development firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names sustainable development firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among sustainable development firms, and records with no verified work email. Companies headquartered outside Kenya are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 70 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 22, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Sustainable development firms by metro

Sustainable development firms in Nairobi133

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names sustainable development firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many sustainable development firms are there based in Kenya?

RevenueBase identified 159 sustainable development firms headquartered in Kenya as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Questworks, headquartered in Nairobi, tops this list with the largest team on record.

Which city has the most sustainable development firms?

Nairobi leads with 133 headquartered companies, followed by Kisumu (2) and Mombasa (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 70 verified decision-maker contacts tracked across these 159 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.