Riverse

Riverse, which operates publicly under the Rainbow brand at rainbowstandard.io (riverse.io redirects to rainbowstandard.io), is a carbon credit certification programme and registry. It sets its own standard — the Rainbow Standard — and issues Rainbow Carbon Credits (RCCs) from carbon removal and greenhouse-gas avoidance/reduction projects, with each credit presented as a tonne of removal or avoidance verified through public models, based on primary field data and compliant with ISO 14064-2. Projects are monitored year-round and audited annually by independent experts, with verified data made accessible through the company's platform.

The programme covers engineered and industrial solutions rather than conventional forestry offsetting, with published methodologies spanning biomass carbon removal and storage (BiCRS), biogenic carbon capture and storage (BioCCS), distributed open-kiln and closed-kiln biochar, ex-situ mineralization of alkaline materials, biogas from anaerobic digestion, refurbishing of electronic devices, biobased construction materials, battery second life and enhanced rock weathering, plus shared modules for processing and energy use, infrastructure and machinery, energy co-products and transportation. Methodologies are versioned with published change histories and justifications, and are aligned to the Standard Rules (V6, V6.2 and V7 revisions are referenced).

The company operates two platforms: Arc (arc.rainbowstandard.io), the project-developer certification and MRV platform, and the public Rainbow Registry (registry.rainbowstandard.io). Its documentation surface includes a fee schedule, dated version histories for the Standard Rules and Procedures Manual, a methodology discontinuation policy, a 207-term glossary, an incident/vulnerability reporting procedure and an Administrative Oversight Record carrying twice-yearly Registry IT audit reports. No public API specification (OpenAPI, AsyncAPI, GraphQL SDL, SDK or MCP server) is served on its hosts; the only public acknowledgement of an API is a line in the fee schedule stating that no additional cost is charged for retirement, transfers or API connections.

Founding story

The founders studied industrial decarbonisation technologies in 2021 and concluded that financing for these technologies needed to be accelerated. Observing that existing carbon credit standards focused mainly on offsetting projects in developing countries and addressed European industrial decarbonisation projects only marginally, they set out to build a standard and digital MRV platform giving European GreenTech SMEs access to the voluntary carbon market. Riverse was established in December 2021 by Ludovic Chatoux, Grégoire Guirauden and Clément Georget.

Business model

Riverse operates a two-sided crediting programme: project developers pay to be certified against the Rainbow Standard and to issue credits through its certification/MRV platform, while buyers purchase the resulting credits. A published fee schedule governs programme costs, and the company states it does not charge additional costs for retirement, transfers or API connections. Earlier company statements describe issuing carbon credits 20 times faster and at a third of the cost of then-current market standards.

Fee-based certification and credit issuance for project developers, with credit sales to buyers; fees are set out in a published fee schedule.

Traction

The company's site reports more than 80 projects certified and over 400,000 credits issued; in May 2025 coverage cited 60+ validated projects and 250,000+ credits issued. Partnerships have been announced with Ceezer, Patch, Removall Carbon, Carbonapp and Oklima. Named corporate buyers include BNP Paribas, Mirakl, Engie and Bouygues. Tera was reported as the first African developer validated on the Riverse carbon registry in June 2025.

Latest developments

In October 2025 the company introduced Rainbow Arc, a fully integrated certification platform. In March 2026 it announced approval by the ICVCM under its Core Carbon Principles, and in May 2026 Frontier approved Rainbow as a credit issuer. A Rainbow Partner Program was introduced in July 2026. Methodology updates continued through December 2025, including alignment with Standard Rules V7 and an increase in the uncertainty discount for electronics refurbishing from 6% to 10%.