Overview
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials

Funding and backers

Total raised
$4M
2 rounds on record
Latest round
$4M
Seed · Nov 2022 · 3 yr ago
Team
11-50
employees, estimated range
Hiring now
1
+1 posted in 30 days
Backers
1
Y Combinator
The money's age
Long since its last round
46 months since the last round · and hiring
Momentum
13/100
hiring for its size
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 2, 2023 Launched SigmaOS launches a contextual AI assistant for its browser · TechCrunch Nov 23, 2022 Raised a round Seed $4M Jul 13, 2021 Raised a round Venture round Jun 2021 Went through Y Combinator
Tractionpublic signals, read monthly
Web presence
top 2%
of 133.2M domains by links, Common Crawl
Hacker News stories
2
best: 6 points
Funding rounds
RoundDateAmountInvestorsSource
Seed Nov 2022 $4M — donews.com
Venture round Jul 2021 — — find-and-update.company-information.service.gov.uk
Registers and programsofficial lists and records that name the company
Legal entity SigmaOS Inc. its site
Backed byfrom the funds' portfolios and accelerator catalogs
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Overview

SigmaOS is a browser company building a smarter way to browse the internet, a browser that works the way its users do. Backed by investors such as LocalGlobe and part of Y Combinator, the startup hires software engineers to build a Chrome extensions system for WebKit in Swift. The company is headquartered in London, United Kingdom.

News

News YahooFinance 2 years ago
YC-backed SigmaOS browser turns to AI-powered features for monetization
Web browsers have realized they are one of the best ways for users to access the present set of AI tools, so they are working on being the first-choice containers for that. SigmaOS, a Y Combinator-backed company, is now banking on users
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News TechCrunch 3 years ago
SigmaOS launches a contextual AI assistant for its browser
LocalGlobe- and Y Combinator-backed web browser startup SigmaOS launched its own AI assistant on Thursday to a limited set of people.
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News verge 3 years ago
The AI revolution is about to take over your web browser
From Opera to Edge to SigmaOS, browser makers big and small are betting that chatbots like Bing and ChatGPT can help you browse the web better.
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News donews.com 4 years ago
SigmaOS获得400万美元种子轮融资- DoNews快讯
SigmaOS是一家浏览器开发商希望通过优化浏览器帮助用户提高办公效率打造一款有别于Chrome、Safari、Edge、Firefox的Mac浏览器帮助用户集中注意力、提高生产力以 ...
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Tech stack

Technologies named in job postings at SigmaOS over the last 12 months, by layer, with the share of postings for each.
Technologies in use
8
Postings analysed
1
Stack modernity
74/100
Languages
JavaScript
Objective-C
Swift
Frameworks & libraries
React.js
SwiftUI
Databases
PostgreSQL
Cloud & platforms
AWS
GCP
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Salary insights

Compensation ranges based on this company's open jobs
Median
$126k
Typical range
$126k
Open positions
1
1 Jobs
Middle 100%
Level Jobs Median Typical range
Middle 1 $126k $126k
Highest paying role Software Engineer $126k
Normalized to USD per year

Growth

Hiring Momentum
28/100
Slowing
Open positions
1
0 opened / 0 closed in 30 days
ATS activity
Every ~5 hours
Today
Hiring Dynamics 0%
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
100% ▲

Offices

Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
London
London United Kingdom
HQ
1 open roles 1 posted in 90 days 100% engineering 10-50 est. staff $126k Avg Salary
hires for Backend
seen since Sep 2026

Jobs

$76k – $126k per year • Equity 0.4–0.8% • In office • Full-Time • 3+ years exp • London
JavaScript
Swift
Objective-C
PostgreSQL
Frontend
React.js
Mobile
SwiftUI
DevOps
GCP
AWS
Apply

Financials

Total raised
$4M
Latest round
Seed
Funding rounds
2
Funding rounds
Round Announced Amount
Seed 2022 $4M Details
Venture - Series Unknown 2021 — Details