Built by engineers
who ran the networks.
Aethoura was founded by three network engineers who spent years watching billions of dollars in carrier costs get managed with spreadsheets and instinct. They knew the data could do better.
2.4B+
Calls optimized monthly
340+
Carrier integrations
$72M
Total funding raised
3
Global offices
94
Team members
60+
Countries served
Make every routing decision as good as your best engineer's best day.
The global voice network moves trillions of dollars of economic activity every day. The routing decisions that underpin it — which carrier, which route, at what cost — are still made with tools that haven't fundamentally changed in 20 years.
Aethoura exists to change that. We believe that every routing decision should be informed by real-time data, validated by machine learning, and executed with sub-second precision — automatically, at any scale.
"We spent years watching carriers leave tens of millions on the table every quarter because their routing tools couldn't keep up with their networks. That's the problem we came to solve.
MHMarcus Holt
Co-founder & CEO
From a London garage to 2.4 billion calls a month
Founded in London
Three network engineers leave a Tier-1 carrier with a shared conviction: routing intelligence should be data-driven, not gut-driven.
First carrier deployment
Aethoura processes its first 100 million calls in production. The routing engine cuts termination costs 38% in the first 90 days.
Series A — $18M
Backed by Sequoia and Bessemer. The round funds the ML research team and global infrastructure expansion.
Wholesale VoIP launch
Platform extended to wholesale VoIP carriers. Fraud detection module ships, blocking $4.2M in fraudulent traffic in its first quarter.
Series B — $54M
Expansion into North America and APAC. Platform surpasses 1 billion calls optimized per month.
Enterprise tier & 2.4B calls/month
Enterprise tier launches for Tier-1 operators. Platform now processes 2.4 billion calls monthly across 340+ carrier integrations.
Principles that shape the platform
Precision over approximation
Every routing decision is a data problem. We build systems that treat it that way — with rigor, not heuristics.
Transparency in every decision
Our platform explains every routing choice. Operators should understand why a route was selected — not just accept a black box.
Infrastructure-grade reliability
Voice is mission-critical. We hold ourselves to the same uptime standards as the networks we serve — 99.97% and climbing.
Carrier relationships matter
We're not here to replace your carrier relationships — we're here to make them more intelligent, more efficient, and more valuable.
The team behind the platform
Marcus Holt
Co-founder & CEO
Former Head of Network Architecture at BT Group. 18 years building and operating carrier-grade voice infrastructure across Europe and APAC.
Dr. Priya Nair
Co-founder & CTO
PhD in distributed systems from Imperial College London. Previously led ML infrastructure at Cloudflare. Holds 7 patents in network optimization.
James Okafor
Co-founder & CPO
Former VP of Product at BICS. Spent a decade building carrier intelligence tools for wholesale operators across 60+ countries.
Sofia Reyes
VP of Engineering
Previously Staff Engineer at Twilio. Leads the platform engineering team responsible for sub-8ms routing decisions at 2.4B calls/month.
Tobias Krenn
VP of Sales
Built and scaled enterprise sales teams at Ribbon Communications and Oracle Communications. Closed Aethoura's first 20 enterprise contracts.
Amara Diallo
Head of Customer Success
Former network operations lead at Orange Business Services. Ensures every Aethoura customer achieves measurable ROI within 90 days.
We're a team of 94 across London, New York, and Singapore. We're hiring.
Backed by
Ready to see what we've built?
Talk to our team and see Aethoura running on your carrier data.