Cortex started with zero customers, zero competitors, and a new category that needed explaining. Through relentless iteration on messaging and laser focus on finding the right champion, they built a company that was valued at USD 470 Mn at Series C.
Read on to get their playbook!
When Anish left his role at Uber, he had firsthand experience of a growing problem: the chaos of managing thousands of microservices.
Wait…WHAT is a microservice?
A microservice is a way of designing software as a collection of small, independent parts, each focused on a specific job. Imagine a big app—like Netflix or Amazon—broken down into single tasks, like user accounts, payment processing, or recommendations, that's a “service”.
Instead of building everything as one large application, each microservice is like its own mini-app, running separately. This makes it easier to update or fix specific parts without disrupting the whole system. This TechCrunch article is also worth a read if you want to learn more about IDPs). Now back to Cortex…
At Uber alone, internal services had grown to almost 8,000 – far exceeding the number of engineers at the company. Basic questions like "who owns this service?" or "where is the documentation?" became impossible to answer.
To solve this, Anish and his co-founders created Cortex: a Internal Developer Platform (IDP) that helps engineering teams access, manage and improve their services.
Think of it as a central hub that automatically catalogues all services across an organisation, tracks their quality, and ensures teams follow best practices, saving countless hours for software engineers.
Armed with this vision, they won a spot in Y Combinator's Winter 2020 batch, but still no customers… (Gentle reminder: the deadline for the YC W2024 batch is today - don’t forget to apply!)
Sequoia led their Seed while they were still pre-revenue, a relationship that has stood the test of time as they participated in their latest USD 60 Mn round.
Cortex’s product
Cortex's early days were a gruelling exercise in market education:
I was probably sending 1000s of cold emails a week to everyone I could think of… I’d get 2 replies, one would be “not interested”.
Early demos often ended with potential customers acknowledging the problem but not seeing enough value to pay for a solution.
Everything changed when Cortex identified one particular job title as their ideal point of entry: Site Reliability Engineers (SREs). These were the people whose job it was to specifically make sure engineering efficiency was at its highest.
The SRE strategy unlocked another crucial advantage: direct access to executive decision-makers. The importance of executive sponsorship in software sales has been flagged time and time again by the likes of HubSpot and Insead.
Because SREs typically work closely with CTOs and VPs of Engineering on critical reliability issues, they provide a natural path to the real buyers.
Working with SREs taught Cortex a crucial lesson about enterprise sales: while technical champions validate the solution, executives buy based on pain. This insight transformed their pricing strategy.
Instead of feature-based pricing or complex ROI calculations, they learned to anchor their value to recent incidents or pain points. When a company had just experienced a major outage, the conversation shifted from technical capabilities to emotional value:
If a company had gone through a really painful incident recently... Suddenly, they could have prevented this incident that cost me millions through Cortex
The strategy paid off. After months of struggle, Cortex landed their first major enterprise customer through a cold email to an SRE who had previously built a similar internal tool.
Find the SRE,
Demonstrate technical value,
Convert decision makers with a pain-point focused pitch,
Repeat!
Finding your point of attack: Look for people who:
technically understand the problem
have organizational influence, even if they lack direct buying power,
Converting them into sales: Technical validation isn't enough – you need executive buy-in. The key is translating technical value into business impact. Instead of complex ROI calculations, anchor your pricing to recent pain points (e.g., "This incident cost you $10M, we can prevent the next one for $10K").
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11x just announced their unreal USD 50 Mn Series B led by a16z
Unreal to think that Hassan and I (Rahul) were both at McKinsey together at the same time! Big big congrats to the whole 11x team!
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