Numero
numero.ai
Actively hiring
CRM Software
Nonprofit, Church & Membership Software
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Overview
Technologies
Salaries
Products
People
Growth
Offices
Financials
Funding and backers
Team
16
US Form 5500 (plan participants) · Dec 2025 · +23% in a year
Backers
2
Y Combinator, Initialized Capital
Momentum
0/100
no fresh signals
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Tractionpublic signals, read monthly
Web presence
top 2%
of 133.2M domains by links, Common Crawl
Hacker News stories
1
best: 16 points
Backed byfrom the funds' portfolios and accelerator catalogs
Y Combinator 
Initialized Capital Investors in similar startupsfunds that back the companies most like this one
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Overview
Numero is a software company that builds a donor database and call time application for political campaigns. Candidates and fundraising staff use it to see donors' giving history during call time, deduplicate contact lists and manage fundraising outreach. Founded in 2019, the company is headquartered in San Francisco, California, United States.
Tech stack
The technologies known for Numero, by layer.
Languages
JavaScript
Ruby
SQL
TypeScript
Frameworks & libraries
Jest
Next.js
RSpec
React.js
Ruby on Rails
Sidekiq
Tailwind CSS
Databases
OpenSearch
PostgreSQL
Redis
Cloud & platforms
Sentry
Developer tools
OpenAI Codex
Claude Code
Cursor
GraphQL
AI & ML
Claude
LLM
Practices & domains
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Growth
Hiring Momentum
20/100
Hiring freeze
Open positions
0
0 opened / 0 closed in 30 days
Median time-to-fill
1421 days
faster than 3% of the market
Hiring Dynamics
0%
Offices
Where the company hires and what each office is for
Cities
2
Hiring now
0
Countries
1
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Headquarters
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San Francisco
United States
HQ
Costa Mesa
United States
Regional office
695 Town Center Drive, Suite 1100, Costa Mesa, CA, 92626, US