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Cybersecurity

Posterous

Posterous emerged from Y Combinator in the summer of 2008 as an innovative company focused on making blogging simple - as simple as sending an email - and now has more than 15 million monthly users. With the launch of Posterous Spaces, the company is bringing its trademark simplicity to help people share smarter with intuitive privacy controls to share selectively across multiple platforms.

sources
1
Evidence entries preserved.
affiliations
1
Y Combinator
competitors
6
Mapped from High Signal graph features.
status
generated
D1 lookup
last updated
2026-07-15
16:41 UTC
source evidence
Why this company exists here

Y Combinator

yc-company-directory #629

Posterous emerged from Y Combinator in the summer of 2008 as an innovative company focused on making blogging simple - as simple as sending an email - and now has more than 15 million monthly users. With the launch of Posterous Spaces, the company is bringing its trademark simplicity to help people share smarter with intuitive privacy controls to share selectively across multiple platforms.

source
generated read
High Signal interpretation

Posterous is classified as Cybersecurity from source descriptions and fund-directory context. Similar companies below are ranked from offline product facets and meaningful description overlap; category and source affiliation can only strengthen an existing product match. For lookup-created rows, the profile starts as pending enrichment until deeper source collection runs.

offline extraction
Product facets
Posterous Spacesintuitive privacy controlspeople
mapping method
Similarity graph

Local clusters rerank extracted product concepts and description terms. The generated graph remains the fallback for sparse descriptions: offline reciprocal product-similarity graph: extracted concepts + description terms + bounded category/affiliation boosts. Minimum fallback score: 0; max competitors: 6.

discovery cluster

Companies similar to Posterous

Cybersecurity · 6 peers

A deterministic local cluster built from offline product facets and meaningful description terms. Category and selected-institution affiliation provide bounded tie-breaks. Open any peer to continue exploring its cluster.

SaveIN

match 49

SaveIN connects people with quality healthcare practices near them and enables them to split their entire medical and wellness bills into monthly instalments. Over 80% of healthcare expense in India is borne out of pocket since less than 10% of Indians have private health insurance. On top of this medical inflation is 15% per annum, thereby making paying for private care expensive and frictional. 5000+ healthcare practices in India now use SaveIN to be discovered by millions of high intent custo

shared product terms: making, now, 15, million; shared affiliation: Y Combinator

PatientBank

match 37

PatientBank helps people gather and share medical records online. The company is backed by Y Combinator, General Catalyst, Khosla Ventures, and others.

shared extracted concepts: people; shared product terms: people, share, combinator; shared affiliation: Y Combinator

Littio

match 37

Littio is a neobank focused on solving the currency devaluation problem for Latin Americans. The product offers a Savings Account, a Mastercard debit, and investing options in U.S. dollars to help people avoid the currency risk.

shared extracted concepts: people; shared product terms: focus, people; shared product theme: security and compliance; same category: Cybersecurity; shared affiliation: Y Combinator

Fynn

match 37

Fynn helps people afford trade school in the US. We bring fair and affordable private loans to the trade space, to help students pursue in-demand careers like electricians, nurses, welders, or pharmacists.

shared extracted concepts: people; shared product terms: people, bring, space; shared affiliation: Y Combinator

MadKast

match 36

Making it easy for people to share news and blog posts with others

shared extracted concepts: people; shared product terms: making, people, share

Cancer Mutual

match 36

Digital products - such as the risk assessment tool, the self-check reminders and walkthroughs - are built to raise awareness and help people reduce exposure to cancer risk factors, reaching over a million South Africans each month.

shared extracted concepts: people; shared product terms: people, million; shared product theme: security and compliance; same category: Cybersecurity