Company lists · Data refreshed September 2026
Top 24 Net zero consulting firms based in Ireland
RevenueBase identified 39 net zero consulting firms headquartered in Ireland as of September 2026 and tracks 365 professional contacts across them, including 223 with verified work emails and 16 with mobile numbers. Dublin is the largest hub.
This list covers net zero consulting firms headquartered in Ireland, 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.
The 24 largest net zero consulting firms based in Ireland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 42 | ||||
“Climeaction Cork & Boston | B Corp Certified | ISO 9001 & Accredited Climeaction is an industrial decarbonisation and carbon intelligence company.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 24 | ||||
“Helping Businesses Cut Energy Costs by up to 50% & Accelerate Their Journey to Net Zero!” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 18 | ||||
“Welcome to Plan Energy, your trusted partner in decarbonisation and renewable energy.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | MosartPartial evidence | 17 | |||
“Providing expert design, energy consulting & training in high performance buildings since 1993.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 14 | ||||
“SustainabilityWorks is a consultancy on a mission to accelerate climate action and sustainability in Ireland.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 14 | ||||
“ActionZero is an industry leader, creating and deploying groundbreaking, self-funding solutions for a zero-emissions world across industrial, enterprise and consumer global…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 11 | ||||
“Meehan Green is a company based in Dublin, Ireland that provides sustainability and green building certifications consulting services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 11 | ||||
“At Carbon Complete, we specialize in guiding businesses through the complexities of environmental regulations with expert CBAM reporting, sustainability consultancy, and…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | Visiongreen ConsultancyIndirect evidence | 8 | |||
“At VisionGreen we are dedicated to making sustainability accessible to businesses of all sizes.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 6 | ||||
“We are dedicated to helping homes and businesses save money & energy, provide energy upgrades and install renewable technology.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 6 | ||||
“Fort Energy is a specialist energy consulting firm to the SME, commercial and government sectors.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 5 | ||||
“Climate Matters Ltd was founded in 2019 on the back of witnessing the transition in the energy sector over the previous decade.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 4 | ||||
“At Evia, we merge our property expertise with a deep commitment to environmental leadership, ensuring the protection and enhancement of real estate assets.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4 | ||||
“Toward Zero Carbon Ltd is unique in the energy services sector because it combines a broad range of skills and disciplines, which are required to deal with the technical…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | NuenergytekStrong evidence | 4 | |||
“At NuEnergyTek we help businesses navigate the road to Net Zero.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 | ||||
“Focus Is Founded on 30 years of industry experience, ranging from Utilities frameworks, Mining, Military, Renewable Energy development and Demand side power connections for Big…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2 | ||||
“At Global Green, we are at the forefront of delivering innovative and sustainable environmental and energy solutions across the globe.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 | ||||
“At Pragmatica, we provide tailored sustainability services as well as deep expertise, to help our clients to add value to their sustainability, carbon and ESG journeys.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 | ||||
“EnergyLads is a leading provider of comprehensive energy consulting services in Ireland, dedicated to helping businesses and individuals reduce their energy costs and carbon…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1 | ||||
“Sustineo is a consultancy for businesses, organisations and people who want to reduce the impact they have on the environment and on society.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 | ||||
“We are change agents, sustainability accountants and LEAN experts - we address the needs of individual companies to design a tailored and focused sustainability strategy, setting…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 | ||||
“Sustainability Solutions Ireland is a dynamic and forward-thinking environmental consulting firm based in Ireland, dedicated to empowering businesses in their journey towards…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 | ||||
“Linda Ward is the person behind Retail Renewal.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 | ||||
“Managing your assets and cabon footprint is getting increasingly important.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 24 of 39 net zero consulting firms based in Ireland
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Net zero consulting firms based in Ireland at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 net zero consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Ireland whose own description of what they do matches “net zero consulting firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among net zero consulting firms, and records with no verified work email. Companies headquartered outside Ireland 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 an evidence 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, 223 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 5, 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
How many net zero consulting firms are there based in Ireland?
RevenueBase identified 39 net zero consulting firms headquartered in Ireland 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?
Climeaction, headquartered in Cork, tops this list with the largest team on record.
Which city has the most net zero consulting firms?
Dublin leads with 9 headquartered companies, followed by Cork (3) and Galway (3).
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 223 verified decision-maker contacts tracked across these 39 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 5, 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 SmartSearch, 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.
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