Company lists · Data refreshed September 2026

Top 25 Solar software developers based in London, United Kingdom

Name: Solar software developers based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 88 companies tracked

RevenueBase identified 88 solar software developers headquartered in London, United Kingdom as of September 2026 and tracks 857 professional contacts across them, including 308 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers solar software developers headquartered in London, United Kingdom, 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 29, 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 29, 2026 86% judged on-target in blind review

88Companies

857Contacts tracked

308Verified emails

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The 25 largest solar software developers based in London, United Kingdom

Ranked by team size

Top 25 of 88 solar software developers based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to solar software developers: 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	Brady Technologies	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	146 contacts →
	Indirect evidence “At Brady Technologies, we are at the forefront of the energy transition, helping market participants navigate new challenges and opportunities with confidence.” Source: RevenueBase Database · checked Sep 29, 2026
2	Sunel Group	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	113 contacts →
	Strong evidence “SUNEL GROUP is a globally recognized EPC Contractor and Developer for Solar projects.” Source: RevenueBase Database · checked Sep 29, 2026
3	Nextenergy Group	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	59 contacts →
	Partial evidence “NextEnergy Group was founded in 2007 to become a leading market participant in the international solar sector.” Source: RevenueBase Database · checked Sep 29, 2026
4	Elements Green	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	51 contacts →
	Strong evidence “Elements Green (EG) is a leading renewable energy developer headquartered in London, specialising in utility-scale solar PV systems and battery energy storage solutions.” Source: RevenueBase Database · checked Sep 29, 2026
5	Powerverse	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	50 contacts →
	Indirect evidence “Powerverse is a smart energy management company committed to creating a more affordable, connected electric future.” Source: RevenueBase Database · checked Sep 29, 2026
6	Solarcentury Africa	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	32 contacts →
	Strong evidence “From pioneering solar company to international developer Founded in 1998, Solarcentury has been around since the early days of the solar industry.” Source: RevenueBase Database · checked Sep 29, 2026
7	Open Climate FIX	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	28 contacts →
	Indirect evidence “Our innovative, AI-led, forecasting solutions are accelerating the grid of the future.” Source: RevenueBase Database · checked Sep 29, 2026
8	Solivus	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	21 contacts →
	Partial evidence “Solivus are on a mission to decarbonise the built environment with lightweight solar, meaning businesses and homeowners can reduce their climate impact, increase energy security…” Source: RevenueBase Database · checked Sep 29, 2026
9	Solar Americas Capital Limited	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	21 contacts →
	Indirect evidence “Have you considered being an investor and consumer of your own energy?” Source: RevenueBase Database · checked Sep 29, 2026
10	Excel Energy	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	19 contacts →
	Partial evidence “At Excel Energy, we are passionate about driving the adoption of commercial solar power in the business world.” Source: RevenueBase Database · checked Sep 29, 2026
11	Envirolec Smart Energy Solutions	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	17 contacts →
	Indirect evidence “With over 70 years combined industry experience, Envirolec Smart Energy Solutions has gained vital expertise and experience in a number of Renewable Technologies.” Source: RevenueBase Database · checked Sep 29, 2026
12	Greenenco LTD	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	15 contacts →
	Partial evidence “GreenEnco is a Technical Advisor and engineering solution provider to solar and energy storage projects.” Source: RevenueBase Database · checked Sep 29, 2026
13	Metris Energy	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	13 contacts →
	Indirect evidence “MetrisOS is the UK's leading asset management platform.” Source: RevenueBase Database · checked Sep 29, 2026
14	Arin Power	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	11 contacts →
	Partial evidence “Helping the UK make the switch to a solar-powered future!” Source: RevenueBase Database · checked Sep 29, 2026
15	Upvolt	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	11 contacts →
	Partial evidence “Upvolt helps homeowners take control of their energy with smart solar, heating and home energy management systems.” Source: RevenueBase Database · checked Sep 29, 2026
16	Inclusive Energy	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	11 contacts →
	Indirect evidence “We make remote monitoring systems and data analytics platforms for the off-grid energy sector.” Source: RevenueBase Database · checked Sep 29, 2026
17	Smpnet	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	11 contacts →
	Indirect evidence “SMPnet’s Omega technology suite is a core platform for advanced power system optimisation and control across modern energy networks.” Source: RevenueBase Database · checked Sep 29, 2026
18	Iris Solar Technology	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	7 contacts →
	Partial evidence “Iris Solar is a clean tech startup building the world’s first all-in-one, monitorable off-grid solar system.” Source: RevenueBase Database · checked Sep 29, 2026
19	TWO Blues Solar	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	7 contacts →
	Partial evidence “Two Blues Solar was created to help businesses obtain the benefits of solar PV, where capital, complexity or other restrictions previously hindered them.” Source: RevenueBase Database · checked Sep 29, 2026
20	Furlong Energy	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	7 contacts →
	Strong evidence “Furlong Energy is a leading developer of solar solutions.” Source: RevenueBase Database · checked Sep 29, 2026
21	Sustainergy	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	6 contacts →
	Partial evidence “We are a Tier 1 SOLAR PROCUREMENT PLATFORM trusted by EPCs, Wholesalers, Installers and Investors across the UK and Europe.” Source: RevenueBase Database · checked Sep 29, 2026
22	Nxgen Solar	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	6 contacts →
	Partial evidence “NXGEN Solar is a UK-based company that provides innovative, efficient and cost-effective solar power solutions to a wide range of customers from government level to industrial and…” Source: RevenueBase Database · checked Sep 29, 2026
23	Sunntics	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	5 contacts →
	Partial evidence “Sunntics is a highly specialised AI and Software as a Service (SaaS) company delivering engineering solutions to optimize the design, performance and operation of Concentrated…” Source: RevenueBase Database · checked Sep 29, 2026
24	Onroute	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	5 contacts →
	Indirect evidence “Established in 2008, Onroute has enabled our customers to deliver over 1M low carbon tech installations.” Source: RevenueBase Database · checked Sep 29, 2026
25	VRM Tech	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	4 contacts →
	Partial evidence “VRM Tech is a software firm that helps building stock owners to monitor, optimise and significantly reduce energy costs, carbon emissions and improve the health of their buildings.” Source: RevenueBase Database · checked Sep 29, 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: solar software developers. 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 solar software developers.
Partial evidence: Its own public description names part of solar software developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name solar software developers. 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 88 solar software developers based in London, United Kingdom

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Solar software developers based in London, United Kingdom at a glance

As of Sep 29, 2026

35.9%Verified-email coverage

9.7Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 88 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 solar software developers, 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 London, United Kingdom whose own description of what they do matches “solar software developers”. 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 solar software developers), 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 solar software developers, and records with no verified work email. Companies headquartered outside London 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, 308 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 29, 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.

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 solar software developers, 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 solar software developers are there based in London, United Kingdom?

RevenueBase identified 88 solar software developers headquartered in London, United Kingdom 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?

Brady Technologies, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most solar software developers?

London leads the United Kingdom with 88 headquartered companies, followed by Glasgow (11) and Manchester (9).

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 308 verified decision-maker contacts tracked across these 88 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 29, 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.