Seltz
Search Engines · Vector Search & RAG
$12.5Mlatest round · Seed · 2026 · 4 mo ago
2backers · Speedinvest, United Ventures
10+team · employees, estimated range
2025founded
Overview
Seltz builds a web knowledge API that gives AI agents fresh, citable and structured information from the live web. It owns its full search stack, from the crawler and knowledge extraction to the index, retrieval models and ranking, crawls hundreds of millions of pages a day, scores individual passages instead of returning whole pages and answers in under 200 milliseconds. Founded in October 2025 by information retrieval researcher Antonio Mallia, formerly of Amazon AGI, Pinecone and Bloomberg, it raised a $12.5 million seed round led by Speedinvest and B Capital in June 2026.
Funding and backers
Total raised
$12.5M
1 round on record
Latest round
$12.5M
Seed · 2026 · 4 mo ago
Team
11-50
employees, estimated range
Backers
2
Speedinvest, United Ventures
The money's age
Fresh money
4 months since the last round · not hiring
Momentum
20/100
fresh money
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Apr 20
Launched on Hacker News Show HN: Seltz – The fastest, high quality, search API for AI agents
2026
Raised a round Seed $12.5M
2025
Founded
Tractionpublic signals, read monthly
Web presence
top 2%
of 133.2M domains by links, Common Crawl
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Seed | 2026 | $12.5M | — | fortune.com |
Founders and leadersfrom filings, registers and the company's site
Antonio MalliaFounder & CEO
Backed byfrom the funds' portfolios and accelerator catalogs
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Financials
Total raised
$12.5M
Latest round
Seed
Funding rounds
1
Investors
4
Funding rounds
| Round | Announced | Amount | |
|---|---|---|---|
| Seed | 2026 | $12.5M | Details |
Key Investors
Italian Founders Fund
Italian Founders Fund is an Italian venture fund backed by founders that invests in Italian startups.
italianfounders.fund
United Ventures
United Ventures is a Milan-based venture capital firm investing in European technology companies.
unitedventures.com
B Capital
B Capital is a global venture capital firm investing in technology companies from early to growth stage.
b.capital
Speedinvest
Speedinvest is a Vienna-based European venture capital firm investing in early-stage technology startups.
speedinvest.com
People
Antonio Mallia
Founder & CEO
NYU PhD in information retrieval and lead author of the PISA search engine. Previously worked on search at Amazon AGI, Pinecone and Bloomberg.
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
Products
Web Knowledge API
Search API for AI agents over Seltz's own crawl and index of more than 500 million pages. Returns passage-level, context-engineered results with citations in under 200 milliseconds.
seltz.ai
Connections
List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors
United VenturesVia a fund
SpeedinvestVia a fund
Click a company to open it. Dashed lines are likely connections. The second step of the network is part of the Pro plan.
Owner
Same company
Same group
Likely
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
0
Countries
1
San Francisco
United States
HQ
10-50 est. staff