About Janus

Helping climate authorities unlock international climate finance more efficiently.

Janus Advisory Services Corp. is a US-based climate tech firm focused exclusively on helping climate authorities access international climate finance more efficiently. We work directly with National Designated Authorities, GCF-accredited entities, and government climate finance units across the Global South.

What They're Saying

"Integrating this software into our workflow means we can deliver superior quality proposals faster. This isn't about replacing expertise — it's about amplifying it."
Qavah Earth · Cape Town
"The ability to rapidly evaluate a concept note against Donor criteria is a game-changer. It saved us days of work and allowed us to deliver a superior product at a fraction of the traditional cost."
Project Developer · South Africa
"It would be wise to have the Concept Note Evaluator in the initial assessment and in the final stage as well. Useful for project developers, private players, and Donor applicants with limited experience."
Development Bank · Southern Africa
"The Converter tool was a lifesaver, migrating our Concept Note to the new Donor format in under two hours. The summary of changes would have taken us days of research."
Project Proponent · Africa
"I found your AI assistants very helpful in organizing ideas and aligning them with Donor criteria. Most importantly, it saved loads of time."
International Delivery Partner · Africa
"The Concept Note Converter has been an invaluable resource that bridges this gap, ensuring our CNs were aligned with the latest Donor standards."
Project Proponent · Zimbabwe
Our Story

Built by people who worked inside the institutions climate finance is meant to serve.

Oliver came to Janus from the Center for Climate Security in Washington, D.C., where he analyzed green development challenges across Latin America and the Caribbean, and from a decade managing software for the U.S. DoD at U.S. Southern Command. That combination gave him an unusual vantage point: the institutional constraints shaping how climate finance gets allocated, and the engineering discipline to act on them.

Climate Finance Intelligence was built in direct response to the challenges small-state DAEs face accessing critical funding. What was missing wasn't more AI — it was AI that understood the domain: that could speak to a Donor's evaluation criteria, trace every claim to a source, and integrate into institutional workflows without disrupting how practitioners work.

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Why Janus

Most organizations know AI can help. We close the gap between that insight and a working system.

The problem isn't access to AI. It's knowing where it fits, what to build first, and how to get a cross-functional team to actually ship it. We identify high-value use cases, scope the technical requirements, and lead delivery — pairing frontier AI capability with deep sustainability and climate-finance domain expertise to build systems that catalyze real institutional workflows.

Work With Us View the Platform
The Team

Domain fluency, frontier AI capability, and the program discipline to deliver.

Oliver Barrett
Oliver Barrett
CEO & Co-Founder

Former Senior Research Fellow at the Center for Climate Security, where he led analysis on green development challenges across Latin America and the Caribbean. Spent a decade managing software programmes for the U.S. DoD at U.S. Southern Command, delivering mission-critical platforms with 99.85%+ uptime.

At Janus, Oliver leads strategy, product direction, and the cross-functional team building CFI.

Isaiah Barrett
Isaiah Barrett
CTO & Co-Founder

Design Lead with 10+ years shaping digital products for companies including Verizon, UnitedHealthcare, and Jeep, specializing in human–AI interaction and conversational design systems.

As CTO, Isaiah leads Janus's technical and design teams, translating complex AI pipelines into experiences that practitioners actually trust. He brings the product discipline and design rigour that makes CFI as dependable in use as it is in its underlying AI.

What Practitioners Say

Trusted by the institutions doing the hardest work in climate finance.

“We want to make it simple for external parties… if the entire process for them is simplified, then projects come to us faster. That is our technology — to make it to the review faster. So I’m glad that you are conquering the front for us because we don’t have time to conquer the front.”

Senior Director, Multilateral Climate Fund

“It would be wise to have such a tool in the initial assessment of concepts and in the final stage as well. Useful to project developers and private players — and other climate finance applicants with limited donor application experience.”

Infrastructure Development Bank of Zimbabwe