Alter5

alter-5.com ↗ ·Madrid ·Other

Alter5 is a Madrid-based fintech that uses AI to originate, structure and distribute financing for SMEs, mid-caps and infrastructure projects. Its main focus is renewable energy and the energy transition. Deals are matched confidentially with institutional lenders and investors. Its products cover corporate debt, factoring, EIF-guaranteed loans, project finance, debt issuance and the sale of renewable projects. The company was founded in late 2019 by former Banco Santander infrastructure-finance banker Miguel Solana and entrepreneur Salvador Carrillo. It has originated and distributed more than €300 million in financing and has been EBITDA-positive since early 2025. In 2021 it set up a green-loan programme with a €105 million European Investment Fund guarantee. In October 2026 Grupo Mutua Madrileña took a 10% stake through its corporate venture arm, Mutua Ventures.

Founded

2019

Founders

Total funds raised

—

SectorsFintech, Energy & Climate, AI & Data Start-up MapFintech › SME lending & financing

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Founders

Miguel Solana

Co-Founder

Salvador Carrillo

Co-Founder

Also at Alter5 →

Global models 5

Lendio

United States · www.lendio.com ↗

Lendio runs an online marketplace that matches small businesses with a network of lenders for term loans, credit lines and factoring, and is paid for originating and placing the debt, as Alter5 is.

$109MComparable

Crux

United States · www.cruxclimate.com ↗

Crux is the closest match: a capital-markets platform that connects clean-energy developers with more than 90 institutional lenders and buyers for project debt and tax-credit transfers, the same energy-transition financing distribution Alter5 does.

$77MComparable

Percent

United States · percent.com ↗

Percent originates, structures and distributes private credit deals to institutional investors from sourcing through servicing, much like Alter5's debt origination and distribution.

$48MComparable

Hum Capital

United States · humcapital.com ↗

Hum Capital is an AI-powered funding platform that matches mid-sized companies raising $1–50M of non-dilutive debt with more than 900 institutional lenders and investors, mirroring Alter5's AI-driven confidential matching.

$35MComparable

Tradeteq

United Kingdom · www.tradeteq.com ↗

Tradeteq uses AI to package trade-finance and receivables assets and distribute them to institutional investors, a smaller version of Alter5's model of placing SME debt and factoring with institutions.

$16MComparable

In the same niche 11 others

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Notes: Most funded first

Investors 1

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Mutua Ventures

www.mutuaventures.com

Round 2026 Spain

Funding rounds 1

Date	Round	Amount	Lead
2026-10-07	No stage disclosed	—	Lead not disclosed +1 more

News 5

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Published	Article
2026-10-26	M&A Teaser 🇪🇸 🇵🇹 Newsletter #305 ↗ M&A Teaser 2026-10-26
2026-10-13	Dealflow #530: Helicon raised €14M. Multiverse incognita. Inditex OSS. ↗ Dealflow.es 2026-10-13
2026-10-09	Mutua Ventures adquiere un 10% del capital de Alter5 ↗ Webcapitalriesgo 2026-10-09
2026-10-07	Mutua Madrileña entra en Alter5 con la compra del 10% de su capital ↗ Bolsa Digital 2026-10-07
2024-12-11	Former Santander Banker Uses AI to Spot Renewable Energy Deals ↗ BNN Bloomberg 2024-12-11