Supabase is an open-source Firebase alternative built on PostgreSQL, providing a complete backend development platform. The company offers Postgres databases, authentication with row-level security, instant REST APIs, Edge Functions, realtime subscriptions, file storage, and vector embeddings. Supabase has raised over $116 million in funding and serves fast-growing companies worldwide, positioning itself as a scalable platform that enables developers to build applications in a weekend and scale to millions of users. Signal Plug searches live against supabase.com's mail server to find and verify email addresses for any Supabase employee.
Signal Plug searches live against supabase.com's mail server — not a static database. Get a verified email for any Supabase employee with confidence score in under 2 seconds.
94% accuracy · No credit card required · 10 free searches/month
Supabase is an open-source Firebase alternative built on PostgreSQL, providing a complete backend development platform. The company offers Postgres databases, authentication with row-level security, instant REST APIs, Edge Functions, realtime subscriptions, file storage, and vector embeddings. Supabase has raised over $116 million in funding and serves fast-growing companies worldwide, positioning itself as a scalable platform that enables developers to build applications in a weekend and scale to millions of users.
Competitive Advantage
Supabase has grown from 'promising' to 'standard' infrastructure choice for startups in remarkably short order according to investor commentary. The platform boasts 1.7+ million registered developers and 34,000+ SupaTroopers (community members) with representation from world-leading brands. Supabase is backed by an unusually star-studded investor group including founders of Docker, GitHub, Vercel, Netlify, and Instagram. The company emphasizes 'Build in a weekend, Scale to millions' as its core value proposition. Notable growth stories include bootstrapped founders scaling AI apps to $1M revenue in 5 months and achieving one million users in 7 months with Supabase Auth.
The most commonly verified format at Supabase:
Medium ConfidenceSignal Plug tests all common patterns against Supabase's live mail server and returns whichever passes the SMTP check.
Run a live search for Supabase →Data-driven signals to help you prospect Supabase effectively.
Supabase targets startups, scale-ups, and enterprise teams building modern applications. It appeals to founders and engineering teams from YC companies, tech-forward organizations, and developers familiar with open-source ecosystems seeking a PostgreSQL-native alternative to Firebase.
Primary Contact
Startup Founders
Tuesday–Thursday, 9am–11am
Signal Plug performs live SMTP verification against supabase.com's mail server — not a static scraped database — which means results reflect the real, current state of Supabase's email infrastructure. Here's how to run a lookup:
Create a free account
Sign up at Signal Plug in under 30 seconds. No credit card required. The Free plan includes 10 searches per month so you can test the tool with real Supabase contacts before upgrading.
Enter the contact's name
Type the first and last name of the Supabase employee you want to reach. Signal Plug handles all seniority levels, from C-suite to individual contributors.
Enter the domain
Use supabase.com. Signal Plug tests all common naming patterns automatically and returns only the format that passes the SMTP check.
Get a verified result
Signal Plug returns an email address with a confidence score (0–100) and deliverability status (Valid, Risky, or Catch-all) within 2 seconds. The confidence score tells you how reliable the result is before you use it.
Export and use
One-click CSV export lets you bring Supabase contacts into Salesforce, HubSpot, Outreach, Lemlist, or any other tool in your stack. Growth and Scale plan users can run bulk lookups across an entire list of Supabase names in a single batch.
Supabase competes directly with Firebase, AWS Amplify, Heroku and others in the Technology space.
| Company | Size | Tier | Focus | Email Format |
|---|---|---|---|---|
| Supabase | Cloud Infrastructure, Backend-as-a-Service | firstname.lastname | ||
| Firebase | — | — | — | firstname.lastname |
| AWS Amplify | — | — | — | firstname.lastname |
| Heroku | — | — | — | firstname.lastname |
| Railway | — | — | — | firstname.lastname |
| Azure App Service | — | — | — | firstname.lastname |
Whether you're running outbound sales, recruiting, or building a partnership list, these are the roles most frequently contacted at Technology like Supabase.
Based on Supabase's profile, the highest-value contacts for outbound are:
Signal Plug works for any role at any seniority level at supabase.com. If you have a name and the domain, you can find a verified email.
How well Supabase fits a typical B2B outbound pipeline, based on available signals.
Good Fit
Funnel Fit Score
Most email finder tools pull from static databases of scraped email addresses. These databases go stale as people change jobs and companies update their email infrastructure. Signal Plug takes a different approach: every search performs a live check against supabase.com's mail server using SMTP verification. This means results reflect the current state of Supabase's email system — not a cached result from months or years ago.
Signal Plug enriches every result with supporting data: a confidence score (0–100), deliverability status (Valid, Risky, or Catch-all), job title where available, and LinkedIn profile URL. This context helps you prioritize which Supabase contacts to email first and personalize your outreach before you hit send. Plans start at $29/month for 500 searches — no annual contracts or seat fees.
Signal Plug performs a live SMTP check against supabase.com's mail server for every query — not a static database lookup. Our platform-wide accuracy rate is 94%. Each result comes with a confidence score (0–100) so you can gauge reliability before using the address.
Free plan: 10 searches. Starter ($29/mo): 500. Growth ($149/mo): 2,000. Scale ($299/mo): 5,000. No company-specific caps.
No. Signal Plug generates and verifies emails in real time via SMTP checks — no static database of Supabase employee emails is maintained.
Yes. Growth and Scale plan users can upload a CSV of names and run bulk lookups against supabase.com in a single batch.
Supabase is an open-source Firebase alternative that provides a complete backend platform built on PostgreSQL, including databases, authentication, APIs, and realtime features.
Supabase is built on PostgreSQL, the world's most trusted relational database, providing 100% portability.
Yes, Supabase includes built-in authentication with Row Level Security (RLS) for securing user sign-ups, logins, and data.
Yes, Edge Functions allow developers to write and deploy custom code without managing or scaling servers.
Signal Plug searches in real time against supabase.com's mail server to find and verify email addresses for Supabase employees. Enter a name, enter the domain, get a verified result with a confidence score in under 2 seconds.
Start finding emails free →10 free searches · No credit card required · Upgrade from $29/month