Harbor

AI-native CRO for clinical trial operations

4.8Score#84 of 999 agents#1 of 4 in Clinical trials coordinator

Why it ranks #84

Harbor, an AI clinical trials coordinator from YC Sp26, ranks #84 of 999 AI agents and #1 of 4 in Clinical trials coordinator, with a score of 4.8 of 10. Data as of 3 Oct 2026.

The score adds four parts, each 0 to 10, by weight. Every point comes from public evidence. How scoring works ·

Proof 6 × 30% 1.8
Scale 2 × 30% 0.6
Momentum 6 × 25% 1.5
Autonomy 6 × 15% 0.9
= 4.8

Proof
Do customers use it? 30% of the score
6
Claims revenue or growth and a customer result.
- +4
  Revenue or growth
  “We started as an AI-enabled system of record, and grew to seven trials and $15.6k in monthly software revenue.”
  Launch YC post · 29 May 2026
- +2
  A customer result
  “As one of our customers noted, our platform streamlined a “standalone, two-month project”for study start up into just “two days” of work.”
  Launch YC post · 29 May 2026
Not found: named customers (+3), a customer count (+2), work done at scale (+2)
Scale
Is there a real company behind it? 30% of the score
2
3 people.
- +2
  3 people on its YC page3 or 4 people
Not found: funding round in its news (+3)
Momentum
Is it shipping and growing now? 25% of the score
6
Shows a recent launch, a new claim and a new batch.
- +3
  Launched in the last 6 monthsHarbor: AI-native CRO for clinical trial operationsLaunch YC post · 29 May 2026
- +2
  A new traction claim
  “We started as an AI-enabled system of record, and grew to seven trials and $15.6k in monthly software revenue.”
  Launch YC post · 29 May 2026
- +1
  New: YC Spring 2026
Not found: open roles on YC (+2), funding news in the last year (+2)
Autonomy
How much of the job does it do on its own? 15% of the score
6
Supervised agent: takes actions in other systems; a person approves key steps.
- +6
  Level 2 of 4: Supervised agentTakes actions in other systems; a person approves key steps.
What the model read
- Acts in other systems: 73% likely
- Finishes whole tasks: 20% likely
- Calls itself an agent: 3% likely
- An AI-native service: it sells the finished work, so it counts as an agent at any level
Level 2: Takes actions in other systems; a person approves key steps.

About Harbor

Harbor is building an AI-native contract research organization (CRO) for clinical trials. We started with an AI-native system of record for clinical trial data (electronic data capture system), grew the software business to seven trials and ~$187k in contracted software revenue over the next twelve months, then expanded into full-service trial execution and signed our first CRO contract worth $1.93M over three years.

Clinical trials consume 45% of all new drug and device development spend. While some of that goes to software, sites, and patients, the largest line items are services: project management, monitoring, data management, site coordination, source verification, query resolution, record reconciliation, and analysis.

Today, drug and device companies outsource clinical operations to legacy CROs and their massive teams, which is why the CRO market is $82B annually. Harbor delivers the regulated services companies buy from legacy CROs, but built around our AI-native system of record from day one. Our software already automates the core data workflows: study build, data capture, query generation, monitoring, signing, and database lock. Because we own the system of record, we can expand into the surrounding service workflows: site contracting and billing, subject engagement and retention, statistics, reporting, and more.

We built Harbor because we lived through the problem. Albert spent four years in clinical trials and regulatory strategy at a medical device startup, taking an unproven wearable from first-in-human trials to FDA authorization. Nate brings the technical depth, having built scalable software at Google and Ramp and served as employee #1 at a previous YC startup.