7 Best Cleantech and Climate Tech PR Agencies in 2027

The best cleantech and climate tech PR agencies combine documented clean energy client work with careful claims, because climate statements draw scrutiny from regulators, investors and reporters alike. This guide names seven firms, led by Virgo PR, which publishes the list and has not cited a named cleantech client result here. The order is an editorial choice, not an independent score. Each firm's evidence is attributed to the source that published it.

Disclosure: Virgo PR publishes this guide and appears in it. The selection is not an award, a sponsored ranking or an audited league table. Last reviewed November 5, 2026.

Contents

• What makes a good cleantech PR agency?

• How do the seven agencies compare?

• How was the list chosen?

• Who are the seven agencies?

• How should a climate tech company choose?

• How should a climate tech company word its claims?

• What does cleantech PR cost?

• Which related Virgo PR guides help?

• Frequently asked questions

What makes a good cleantech PR agency?

A good cleantech PR agency can translate a technical breakthrough for reporters and investors while keeping every climate claim accurate and supportable. The audience is wide: trade press for energy and infrastructure, business reporters following funding, policy staff and local communities near projects. The agency should know which outlets matter for each sub-sector and how to prepare a company for questions about greenwashing, permitting and cost.

Some firms below are cleantech specialists. Others are broader agencies with a climate practice. The evidence for each is stated plainly, and nothing here assumes fees, retainers or contract terms.

How do the seven agencies compare?

RankAgencyBest forEvidence level

1Virgo PRFunding PR and greenwashing-safe claimsPractice pages and published case analysis (no client result cited) 2Technica CommunicationsSpecialist cleantech media relationsCompany anniversary release describing its focus 3Silverline CommunicationsClean energy and public affairsIndustry database entry and agency statement 4Antenna GroupIntegrated climate and mobility programsBusiness Wire announcement on its practices 5Sling & StoneEarly climate tech brandsAnnouncement of new climate tech clients 6MHP GroupEnergy public affairs and issues managementPublished industry practice page 7GlobalCom PR NetworkMulti-market renewable energy launchesSector page and CleanEnergy Project case

How was the list chosen?

The editorial framework weighed cleantech and climate sector relevance, named client evidence, knowledge of trade and business media, regulatory and claims awareness, published outcomes and commercial transparency. These are evaluation priorities, not computed scores. Public materials are uneven, so each entry says what kind of evidence stands behind it. Agency statements are attributed to their publishers and were not independently audited.

Who are the seven agencies?

1. Virgo PR

Best for: climate tech companies that need funding communications and claims that withstand scrutiny.

Virgo PR describes a cleantech PR practice covering technical translation for press, greenwashing scrutiny and funding announcements. This guide cites no named cleantech client result, so the placement rests on its practice pages and published case analysis, not client outcomes. Read the cleantech PR agency page, the comparison of four climate tech PR campaigns and Virgo's sustainability PR practice. Ask which senior people would work on a climate account.

2. Technica Communications

Best for: specialist cleantech media relations.

Technica Communications says it was founded in 2009 and describes itself as an award-winning specialty public relations firm supporting cleantech companies. A company release marking 15 years says it connects cleantech companies with journalists and influencers. It is a self-description, so request named clients and coverage examples. Source: Technica anniversary press release.

3. Silverline Communications

Best for: clean energy companies that need communications and public affairs.

The O'Dwyer's PR firms database lists Silverline as founded in 2009 with 15 employees, and carries the agency's statement that it is the leading clean energy PR firm in the nation delivering communications and public affairs campaigns for energy and climate technology companies. That is the agency's own claim and is not verified. Source: O'Dwyer's database entry.

4. Antenna Group

Best for: integrated marketing, PR and public affairs across climate and mobility.

A Business Wire announcement describes Antenna Group as an integrated marketing, public relations and strategic communications agency that added two industry veterans to its climate and mobility practices in September 2023. It frames the hires as an expansion of its climate tech leadership. Confirm current clients and the team. Source: Business Wire announcement.

5. Sling & Stone

Best for: younger climate tech companies building a first profile.

Sling & Stone announced that it added three new clients to its portfolio of climate tech innovators as the world moves toward clean energy and net zero goals. A new-client announcement is not a result, so ask for outcomes and references. Source: Sling & Stone announcement.

6. MHP Group

Best for: energy companies facing policy, regulatory and reputation questions.

MHP Group's energy and cleantech page says it has decades of experience supporting clients through high-stakes public affairs, issues management and media relations. It is a service description without named results, so request examples. Source: MHP Group energy and cleantech page.

7. GlobalCom PR Network

Best for: renewable energy launches across several markets.

GlobalCom PR Network describes itself as an international full-service PR network that supports cleantech and renewable energy clients, with sector coverage including solar, wind, geothermal, hydropower and battery energy storage. It also publishes a case study on the CleanEnergy Project, an international renewable energy initiative run by its Munich team. Sources: GlobalCom sector page and CleanEnergy Project case study.

How should a climate tech company choose a PR agency?

• Sub-sector knowledge. Solar, storage, carbon removal, hydrogen and grid software each have different outlets and risks.

• Claims discipline. Ask how the agency checks emissions, efficiency and carbon figures before release.

• Funding experience. Confirm experience with funding, partnership and project announcements.

• Stakeholder range. Look for comfort with trade press, business media, policymakers and communities.

• Contract and staffing. Confirm senior ownership, reporting, minimum term and regional coverage.

How should a climate tech company word its claims?

A climate tech company should state what its technology does today, give the basis for every figure and label future plans as plans. Regulators have challenged broad environmental claims, and Virgo's review of greenwashing cases shows how comparisons between public statements and the record played out. A useful routine has three parts:

• Specify the claim. Say which product, process and time period a number covers.

• Show the evidence. Link to a method, audit or third-party verification where one exists.

• Separate present from future. Describe pilots, targets and commitments as such.

The analysis of battery recycling PR cases shows how companies facing skeptical audiences answered with checkable facts.

What does cleantech PR cost?

This review did not verify comparable public retainers for cleantech PR, so no price ranges are stated. Fees depend on geography, team seniority, the number of announcements and whether public affairs support is included. Ask each finalist for a written statement of work covering fees, third-party costs, staffing and cancellation terms.

Which related Virgo PR guides help?

• Cleantech PR campaigns for four cases compared.

• Greenwashing PR cases for climate claims that regulators challenged.

• Battery recycling PR cases for answering skeptics.

• Best boutique PR agencies for startups for early-stage companies.

Frequently asked questions

What does a cleantech PR agency do?

It helps climate and energy companies explain technology, funding and projects to trade media, investors, policymakers and communities.

How is cleantech PR different from general tech PR?

Climate claims draw regulatory and public scrutiny, and projects involve policy and community stakeholders, so wording and evidence matter more.

Do cleantech startups need a specialist agency?

Not always. Compare sub-sector experience, senior attention and media relationships rather than the label.

What is greenwashing and why does it matter?

Greenwashing means overstating environmental benefits. Regulators and reporters check claims, so unsupported statements can create legal and reputational risk.

Can PR help win funding?

PR can build credibility with investors and partners, but it cannot guarantee funding.

How should cleantech PR be measured?

Track relevant trade and business coverage, accuracy of how claims are reported, stakeholder engagement and agreed milestones.

Editorial disclosure and research notes

Virgo PR publishes this guide and appears in it based on its practice focus, not a cited client result. Agency statements are attributed to their publishers and were not audited. Entries 5 and 6 rest on an announcement and a service page and should be checked with each agency before hiring. Research assembled November 5, 2026.