Overview
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials

Funding and backers

Total raised
$152.7M
4 rounds on record
Latest round
$117.8M
Venture round · Dec 2021 · 4 yr ago
Team
1-10
employees, estimated range
Hiring now
6
open roles
Backers
1
Y Combinator
The money's age
Long since its last round
57 months since the last round · hiring slowed
Momentum
0/100
no fresh signals
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
Jun 2024 Went through Y Combinator Dec 30, 2021 Board appointment Salle Yoo, Director · SEC Form D Dec 20, 2021 Raised a round Venture round $117.8M · SEC Form D Jun 4, 2019 Board appointment Nick Grossman, Director · SEC Form D May 20, 2019 Raised a round Venture round $14.8M · SEC Form D May 20, 2019 Raised a round Venture round $71k · SEC Form D Apr 18, 2016 Raised a round Venture round $20M · SEC Form D 2013 Founded
Tractionpublic signals, read monthly
Web presence
top 6%
of 133.2M domains by links, Common Crawl
Funding rounds
RoundDateAmountInvestorsSource
Venture round Dec 2021 $117.8M — SEC Form D
Venture round May 2019 $71k — SEC Form D
Venture round May 2019 $14.8M — SEC Form D
Venture round Apr 2016 $20M — SEC Form D
Registers and programsofficial lists and records that name the company
Legal entity Cloud Captain Inc. its site
Founders and leadersfrom filings, registers and the company's site
Amir HaleemExecutive Officer, DirectorSEC Form D
Rob ChandhokExecutive Officer, DirectorSEC Form D
Backed byfrom the funds' portfolios and accelerator catalogs
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Overview

Helium is a Y Combinator-backed (S24) software company developing AI-driven paywall management, upsell personalization, and conversion rate optimization platforms for consumer mobile applications. Headquartered in San Francisco, the startup enables mobile product and growth teams to dynamically design, test, and deploy in-app paywalls and subscription monetization flows without writing native code or waiting for app store release approval cycles.

Tech stack

Technologies named in job postings at Helium over the last 12 months, by layer, with the share of postings for each.
Technologies in use
18
Postings analysed
6
Stack modernity
78/100AI adopter
Languages
Go
TypeScript
Dart
JavaScript
Frameworks & libraries
React.js
Next.js
Flutter
Radix UI
Databases
ClickHouse
Cloud & platforms
OpenAI
Fly.io
Supabase
AI & ML
LLM
Sign in to see how your skills match this stack Sign In
Full Helium tech stack 18 technologies · by team · pay by technology · changes · similar stacks

Salary insights

Compensation ranges based on this company's open jobs
Median
$200k
Typical range
$100k – $250k
Open positions
6
6 Jobs
Intern 16.7%
Junior 66.7%
Senior 16.7%
Level Jobs Median Typical range
Intern 1 $100k $100k
Junior 4 $200k $160k – $240k
Senior 1 $250k $250k
Highest paying role Founding Sr Full-Stack Engineer $250k
Normalized to USD per year
All salaries at Helium By role, level and city, against the market · 6 jobs with pay

People

Amir Haleem
Executive Officer, Director
Rob Chandhok
Executive Officer, Director
Joichi Ito
Director
Bruce Armstrong
Director
Andrew Wheeler
Director
Nick Grossman
Director
Salle Yoo
Director
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data

Growth

Hiring Momentum
58/100
Growing
Open positions
6
0 opened / 0 closed in 30 days
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.
Backend
33% ▼
Marketing
17% ▲
Sales
17% ▲
Operations
17% ▲
Industrial Engineering
17% ▼
Activity Timeline
Added X (Twitter) to stack Sep 2026
Added LinkedIn to stack Sep 2026
Added A/B Testing to stack Sep 2026
Added OpenAI to stack Aug 2026

Offices

Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
San Francisco
San Francisco United States
HQ
6 open roles 6 posted in 90 days 33% engineering 1-10 est. staff $192k Avg Salary
hires for Backend, Marketing, Sales
seen since Aug 2026

Jobs

$150k – $250k per year • Equity 0.5–1.5% • In office • Full-Time • 3+ years exp • Bachelor's Degree • San Francisco
Go
JavaScript
TypeScript
Dart
Supabase
ClickHouse
AI/ML
Cursor
LLM
OpenAI
Frontend
Zustand
Tailwind CSS
Next.js
React.js
Radix UI
shadcn/ui
Mobile
Flutter
DevOps
Fly.io
Apply
$125k – $200k per year • Equity 0.5–1% • In office • Full-Time • 1+ year exp • Bachelor's Degree • San Francisco
Go
JavaScript
TypeScript
Dart
Supabase
ClickHouse
AI/ML
Cursor
LLM
OpenAI
Frontend
Zustand
Tailwind CSS
Next.js
React.js
Radix UI
shadcn/ui
Mobile
Flutter
DevOps
Fly.io
Apply

Financials

Total raised
$152.7M
Latest round
Venture - Series Unknown
Funding rounds
4
Funding rounds
Round Announced Amount
Venture - Series Unknown 2021 $117.8M Details
Venture - Series Unknown 2019 $71k Details
Venture - Series Unknown 2019 $14.8M Details
Venture - Series Unknown 2016 $20M Details