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Blind (Teamblind Inc.)

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teamblind.com

Overview

Blind is an anonymous professional community platform where verified employees can share candid opinions about workplace culture, salaries, layoffs, and career advice. Originally launched as a tech-industry forum, it has expanded into a broad professional network spanning multiple industries and geographies. Members verify their employment status via work email to maintain authenticity while preserving anonymity.

IndustryProfessional Social Network / Community Platform
Founded2013
HQSan Jose, California, USA
Team Size100-500

By the Numbers

8M+
Registered Users
self-reported, as of 2023
Millions verified
Verified Professionals
via work email verification
#33,953
Tranco Web Rank
global, mid-tier traffic
146
HackerNews Mentions
indicating strong tech community resonance
~11 years
Domain Age
registered May 2013

Founders

Sunguk MoonCo-Founder & CEO

South Korean entrepreneur who previously worked in the tech industry before founding Teamblind Inc. to create a safe, anonymous space for professionals to speak candidly about their employers.

Moon built Blind first as a Korean-language app for Korean tech workers, then expanded it to the English-speaking market after witnessing massive pent-up demand for anonymous workplace discourse.

Kyum KimCo-Founder

Co-founded Teamblind alongside Sunguk Moon, helping shape the product's early direction and community growth strategy in Korea before the platform's global expansion.

The duo initially launched Blind in Korea in 2013, where it became extremely popular among Samsung, LG, and Kakao employees before pivoting to target Silicon Valley.

Funding

~$37M
Last RoundSeries B
ValuationUnknown
Goodwater CapitalSoftBank Ventures AsiaKorea Investment PartnersNaver

Competitors

Glassdoor

Non-anonymous reviews tied to employer branding; more focused on job listings and formal employer profiles than real-time community discussion

Levels.fyi

Focused narrowly on compensation data and leveling across tech companies rather than broader community discussion

Reddit

General-purpose anonymous forum with career subreddits (e.g. r/cscareerquestions) but lacks workplace email verification for authenticity

Fishbowl

Professional anonymous community acquired by Glassdoor; targets broader industries including finance and consulting

LinkedIn

Non-anonymous professional network focused on public reputation, job searching, and networking rather than candid internal discourse

Key People

David YinHead of Product / Senior Leadership

Part of Blind's core leadership team overseeing product development and user growth initiatives in the North American market.

Revenue & Model

$10M-$50M ARR
Business ModelAdvertising (programmatic display via Google DoubleClick), with potential B2B data/recruiting products
Headcount~150-300Stable

Hiring Signals

~20open rolesStable
Other
3
Product
4
Marketing
3
Engineering
10

Tech Stack

ReactNode.jsPythonAWSGoogle Analytics 4Google DoubleClickQuantcast MeasurePostgreSQLRedisElasticsearchKafka

Web Presence

Global traffic rank#33,953
Domain registered2013-05-01 (13 yrs)
RegistrarGabia, Inc.
Hacker News mentions146

Verified from public records — not AI-estimated.

Trackers & Analytics

3services detected
Analytics
Google Analytics 4Quantcast Measure
Advertising & Retargeting
Google DoubleClick / Campaign Manager

Scanned from the HTML teamblind.comserves — scripts a tag manager injects later won't appear here.

How They're Doing

Growing

Blind has grown into a go-to resource for tech and finance professionals seeking candid salary benchmarks and layoff information, particularly surging in usage during the 2022-2023 tech layoff wave. The platform regularly breaks news about major corporate layoffs before official announcements, cementing its reputation as a real-time insider source. With a Tranco rank of ~33,953, it maintains solid mid-tier web traffic with a highly engaged, verified user base.

Became a primary source for real-time layoff information during 2022-2024 tech industry downturn

Expanded beyond tech into finance, consulting, and other professional sectors

Prognosis

Bullish

Blind is well-positioned to capitalize on continued workplace transparency trends and ongoing tech sector volatility that drives employees to seek candid peer information. Monetization remains a challenge — the platform relies primarily on advertising (evidenced by Google DoubleClick integration) and must balance revenue growth without alienating its privacy-focused user base. International expansion, particularly in Asia and Europe, represents a significant growth lever.

Opportunities

Expanding verified community model to healthcare, finance, and legal industries

Leveraging salary and culture data as a B2B intelligence product for recruiters or HR teams

Growing presence in Asia-Pacific markets where founder networks already exist

Becoming the definitive real-time layoff tracker with structured data products

Risks

Competition from well-funded rivals like Glassdoor and LinkedIn adding anonymous features

Risk of toxic or unverified content undermining platform trust and brand safety for advertisers

Monetization constraints given user sensitivity to ads and data privacy

Regulatory risks around anonymous speech and employer defamation claims in various jurisdictions

Recent News

2024-01

Blind continues to be cited as primary source for tech layoff tracking amid ongoing industry contraction

Various tech media

2023-06

Blind expands community features to support professionals across finance and consulting sectors beyond tech

Company updates

2021-09

Teamblind raises Series B funding to expand platform and grow user base globally

TechCrunch

2022-11

Blind sees massive traffic surge as Twitter, Meta, and Amazon layoff discussions flood the platform

Business Insider

Controversies

2020

Blind faced criticism and legal pressure from companies including Kakao in South Korea, who argued the platform enabled defamatory and false statements about employers by anonymous users.

2022

Several employers raised concerns about Blind posts spreading unverified layoff rumors ahead of official announcements, causing employee panic and stock price sensitivity.

Fun Facts

  • 01Blind was originally built as a Korean-language app and dominated workplace discussion in Korea among Samsung and LG employees before launching in English for Silicon Valley.
  • 02The platform's anonymous verification model — where you prove you work somewhere but hide your identity — was considered a novel and somewhat controversial design choice that many said would never work at scale.
  • 03Blind posts have directly preceded several high-profile layoff announcements, leading to speculation that insiders use the platform to leak information before official HR communications.

Timeline

2024

Continues growth as a trusted anonymous professional community with millions of verified members globally

2023

Expands beyond tech to finance, consulting, and other professional verticals

2022

Becomes primary real-time source for tech layoff news during mass industry contraction

2021

Raises ~$37M in Series B funding led by Goodwater Capital

2019

Raises Series A funding to accelerate U.S. and global growth

2017

Platform gains mainstream attention in U.S. tech circles, particularly around compensation and workplace culture discussions

2015

Blind launched in English targeting Silicon Valley tech workers

2013

Teamblind Inc. founded in South Korea; Blind app launched for Korean tech professionals