Overview
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials

Funding and backers

Total raised
$60M
2 rounds on record
Latest round
$40M
Venture round · Feb 2026 · 8 mo ago
Team
27
US Form 5500 (plan participants) · Dec 2025
Hiring now
4
open roles
Backers
2
NEA, Sequoia Capital
The money's age
Fresh money
8 months since the last round · hiring slowed
Momentum
30/100
a new city, fresh money
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Oct 2026 Formerly This Privacy Policy describes how Anterior, Inc. (co-helm.com) Feb 12 Raised a round Venture round $40M · PRNewswire Jun 8, 2024 Raised a round Series A $20M · TechCrunch 2022 Founded
Tractionpublic signals, read monthly
Web presence
top 0.9%
of 133.2M domains by links, Common Crawl
Funding rounds
RoundDateAmountInvestorsSource
Venture round Feb 2026 $40M — PRNewswire
Series A Jun 2024 $20M — TechCrunch
Backed byfrom the funds' portfolios and accelerator catalogs
Investors in similar startupsfunds that back the companies most like this one
Similar startupsby what they do, their industry and backers
Humata HealthVenture round $25M · 2 yr ago • Founded 2023 • 51-200 employees • 3 roles
Automate prior authorization with intelligent AI, real-time payer connectivity, and 90% touchless approvals. Faster care for providers…
Layer HealthVenture round $29.5M · 21 mo ago • Founded 2023 • 51-200 employees • 16 roles
Layer Health builds large language model tools that read clinical records. Its systems extract structured facts for quality measurement and…
secondz digital is a Japanese AI startup that develops AI agents built on large language models and supports their adoption in companies…
FreedFounded 2022 • 51-200 employees • 2 roles
Freed builds an artificial intelligence scribe that listens to clinical visits and writes the note for the clinician. Founded in 2022 in…
SpellbookVenture round $50M · 12 mo ago • Founded 2019 • 51-200 employees • 25 roles
Spellbook is a legal technology company that builds an AI contract drafting and review assistant for transactional lawyers. The tool works…
Insight Health11-50 employees
Insight Health's AI reads every fax, referral, and prior authorization request, then writes structured data into your EHR in minutes. HIPAA…

Visa sponsorship

  • United States · H-1B filings in 12 months: 1 · green card filings: 1

Visa details by country

Overview

Anterior automates clinical review work for health insurers, using large language models to judge prior authorisation requests against medical policy. Founded in 2022 by a physician and machine learning engineers, it aims to shorten decisions that keep patients waiting for care. The company was previously known as Co:Helm.

News

News AlleyWatch 7 months ago
Anterior Raises $40M to Eliminate Administrative Burden Draining Healthcare Resources
While cancer patients wait weeks for treatment approval, health insurers employ hundreds of thousands of nurses to process paperwork instead of providing care. Former Google product leader and physician Dr. Abdel Mahmoud built Anterior to solve this, achi
Read more
Report
News Neuroscience News 7 months ago
Why Socializing Loses to Alcohol in Addiction
Researchers identify the anterior insula as the brain region responsible for biasing decisions toward alcohol over social rewards in addiction.
Read more
Report
Press release PRNewswire 8 months ago
Anterior Closes $40 Million to Accelerate Health Plan AI Adoption, Bringing Total Funding to $64 Million
/PRNewswire/ -- Anterior, the clinician-led artificial intelligence platform for health plans, announced a $40 million funding round, bringing total capital...
Read more
Report
News Refractor 2 years ago
New defib placement increases chance of surviving heart attack by 264%
Placing defibrillator pads on the chest and back, rather than the usual method of putting two on the chest, increases the odds of surviving an out-of-hospital cardiac arrest by more than two-and-a-half times, according to a new study.
Read more
Report
News Nature 2 years ago
Claustrum neurons projecting to the anterior cingulate restrict engagement during sleep and behavior
The claustrum has been linked to attention and sleep. We hypothesized that this reflects a shared function, determining responsiveness to stimuli, which spans the axis of engagement. To test this hypothesis, we recorded claustrum population dynamics from
Read more
Report
News Nature 2 years ago
Claustrum neurons projecting to the anterior cingulate restrict engagement during sleep and behavior
The claustrum has been linked to attention and sleep. We hypothesized that this reflects a shared function, determining responsiveness to stimuli, which spans the axis of engagement. To test this hypothesis, we recorded claustrum population dynamics from
Read more
Report
News Business Insider 2 years ago
Exclusive: Health AI startup Anterior raised $20 million from NEA and Sequoia. Here's the pitch deck it used.
Anterior, formerly Co:Helm, raised a $20 million Series A from investors like NEA and Sequoia Capital to automate prior authorizations for insurers.
Read more
Report
News TechCrunch 2 years ago
Anterior grabs $20M from NEA to expedite health insurance approvals with AI
Anterior, a company that uses AI to expedite health insurance approval for medical procedures, has raised a $20 million Series A round at a $95 million
Read more
Report
Show more news

Tech stack

Technologies named in job postings at Anterior over the last 12 months, by layer, with the share of postings for each.
Technologies in use
14
Postings analysed
4
Stack modernity
81/100AI adopter
Languages
Go
Python
JavaScript
TypeScript
Frameworks & libraries
HTMX
React.js
Cloud & platforms
AWS
GitHub
AI & ML
LLM
Sign in to see how your skills match this stack Sign In
Full Anterior tech stack 14 technologies · by team · pay by technology · changes · similar stacks

Salary insights

Compensation ranges based on this company's open jobs
Median
$250k
Typical range
$200k – $300k
Open positions
3
3 Jobs
Middle 33.3%
Staff 33.3%
Architect 33.3%
Level Jobs Median Typical range
Middle 1 $200k $200k
Staff 1 $300k $300k
Architect 1 $250k $250k
Highest paying role Senior Member of Technical Staff $300k
Normalized to USD per year

Growth

Hiring Momentum
59/100
Growing
Open positions
4
0 opened / 0 closed in 30 days
Median time-to-fill
49 days
faster than 28% of the market
ATS activity
Every ~4 hours
Today
Hiring Dynamics +100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Solutions
67% ▼
HR
33% ▼
Activity Timeline
New location: United States Sep 2026
Added Prompt Engineering to stack Sep 2026
Added JavaScript to stack Sep 2026
Added React.js to stack Sep 2026
Added LLM to stack Sep 2026
Added HTMX to stack Sep 2026
Added GitHub to stack Sep 2026
Added Edge AI to stack Aug 2026

Offices

Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
New York
New York United States
HQ
3 open roles 2 posted in 90 days 33% engineering 50-200 est. staff $250k Avg Salary
hires for Solutions, AI/ML
29 W 30th Street Floor 11
seen since Apr 2026 company site, job postings

Jobs

≈ $148k – $288k per year (Estimated) • Hybrid • Full-Time • United States
Edge AI
Apply
$160k – $200k per year • In office • Full-Time • 4+ years exp • New York
Prompt Engineering
LLM
Edge AI
Apply
$180k – $250k per year • Equity • In office • Full-Time • New York
Python
Go
TypeScript
Terraform
CI/CD
AWS
CDKTF
Apply
$230k – $300k per year • Equity • In office • Full-Time • New York
Python
Go
JavaScript
LLM
Frontend
HTMX
React.js
DevOps
Terraform
AWS
CDKTF
GitHub
Apply

Financials

Total raised
$60M
Latest round
Venture - Series Unknown
Funding rounds
2
Funding rounds
Round Announced Amount
Venture - Series Unknown 2026 $40M Details
Series A 2024 $20M Details