// verified b2b email list
List.js Email List
Target decision-makers at companies with List.js in their stack using deliverable, verified B2B emails for precise technographic outbound campaigns.
- verified contacts
- 48,401
- companies
- 1,876
List.js Email List (sample 20)
Download the full list| Name and title | Company | Status | |
|---|---|---|---|
S Sam Gates Sales Strategist Indeed | Indeed | sg***@indeed.com | Verified |
C Crystal Matt principal Etherscan | Etherscan | m***@etherscan.io | Verified |
L Lilly Hsueh VP of Customer Success Management Cloudinary | Cloudinary | l***@cloudinary.com | Verified |
R Rebekah Baskin Senior Research Technologist ALSAC | ALSAC | reb***@stjude.org | Verified |
S Sam Helferich Sr. Manager, HR Data & Systems Customer.io | Customer.io | sam***@customer.io | Verified |
N Nhat Nguyen Marketing assistant Toshiba America Energy Systems | Toshiba America Energy Systems | nha***@toshiba.com | Verified |
G Giles False founder PythonAnywhere | PythonAnywhere | g***@pythonanywhere.com | Verified |
K Kathy Jacquart Staff Associate for Administration and Planning, National Science Board Office National Science Foundation | National Science Foundation | kja***@nsf.gov | Verified |
A Alec Macgillis Journalist ProPublica | ProPublica | ale***@propublica.org | Verified |
F Facundo Faciano Diseño en solidwork, autocad, entre otras Argentine Trains Operations | Argentine Trains Operations | ff***@argentina.gob.ar | Verified |
R Robyn Lacks assistant professor Virginia Commonwealth University | Virginia Commonwealth University | rd***@vcu.edu | Verified |
T Tara Bensen Illustration Editor Annual Reviews | Annual Reviews | tb***@annualreviews.org | Verified |
A Abdullah Alsayed teacher Ministry of Education | Ministry of Education | ab***@moe.gov.sa | Verified |
V Vinod Jojare Sale n Marketing Vodafone UK | Vodafone UK | vin***@vodafone.co.uk | Verified |
I Imad Barrouh . City of Philadelphia Department of Commerce | City of Philadelphia Department of Commerce | ima***@phila.gov | Verified |
M Mark Mcquilling mechanical engineering program coordinator Saint Louis University | Saint Louis University | mar***@slu.edu | Verified |
D David Pombo directeur d'agences franchisà MerciHenri.com | MerciHenri.com | dp***@meilleurtaux.com | Verified |
D Dwarak Rajagopal PyTorch Foundation Board Member PyTorch | PyTorch | dw***@pytorch.org | Verified |
T Tony Tam vp engineering technical founder Wordnik | Wordnik | t***@wordnik.com | Verified |
C Courtney Bennett Economic Attach Diaspora African Forum African Union | African Union | cou***@au.int | Verified |
Showing 20 of 48,401 verified contacts
Refine to your ICP
Narrow these 48,401 contacts down to the ones that match your ideal customer profile.
No credit card required.
// live data
How the List.js email list is built with Tomba
This isn’t a static file that quietly rots. Every list is assembled live from the Tomba API and verified before it reaches you: current, deliverable and ready to export in minutes.
- 01
Target
Pick your filters: industry, technology, job title, department, company size, country or US state. Tomba Reveal maps the companies that match.
- 02
Discover
Domain Search pulls the current decision-makers and their work emails from each matching company, live rather than from a recycled dump.
- 03
Verify
Every address is SMTP-checked and AI-scored the moment it is found, including catch-all (accept-all) domains most tools skip.
- 04
Export
Download fresh, verified contacts to CSV or your CRM, or pull them straight from the REST API. Built the moment you ask, so nothing is stale.
Why build this list with Tomba
AI-powered discovery
Machine-learning models rank and match the right people at the right companies, then predict the most likely deliverable pattern.
Catch-all verification
Tomba verifies catch-all (accept-all) domains that other providers mark “unknown”, so you can reach leads they cannot validate.
Verified before you send
Syntax, MX and SMTP checks plus catch-all detection keep bounces low, and every confirmed hard bounce earns a credit back.
Sources you can check
Every address comes from public web pages Tomba crawls, and the sources behind any email are one request away.
Pay only for results
If Tomba can’t find an email, the search is free: only searches that return a result use a credit.
API, SDKs & MCP
A REST API with 13 official SDKs, spreadsheet add-ons, and an MCP server to build this list straight into your AI tools and workflows.
// for developers and ai assistants
Build the List.js list with the Tomba API
Reveal the companies, Domain Search their live contacts, Verify every email (catch-all included), and Phone Finder for direct dials. Copy-paste in Go, JavaScript, cURL, or MCP.
// npm install tomba
import { TombaClient, Reveal, Domain, Verifier, Phone } from "tomba";
const client = new TombaClient();
client.setKey("ta_xxxx").setSecret("ts_xxxx");
const reveal = new Reveal(client);
const domain = new Domain(client);
const verifier = new Verifier(client);
const phone = new Phone(client);
// 1. Reveal: find companies for the List.js list
const { data } = await reveal.companiesSearch({
query: "companies using List.js",
page: 1,
});
for (const company of data.companies) {
// 2. Domain Search: pull live contacts + emails
const res = await domain.domainSearch({
domain: company.website_url,
limit: "20",
});
for (const contact of res.data.emails) {
// 3. Verifier: AI + catch-all verification (accept-all included)
const check = await verifier.emailVerifier(contact.email);
if (check.data.email.status !== "valid") continue;
// 4. Phone Finder: add a direct-dial number (5 credits)
const dial = await phone.finder({ email: contact.email });
console.log(contact.email, contact.position, dial.data?.intl_format);
}
}// go get github.com/tomba-io/go
package main
import (
"fmt"
"os"
"github.com/tomba-io/go/tomba"
"github.com/tomba-io/go/tomba/models"
)
func main() {
client := tomba.New(os.Getenv("TOMBA_API_KEY"), os.Getenv("TOMBA_SECRET_KEY"))
// 1. Reveal: find companies for the List.js list
companies, err := client.SearchCompanies(&models.RevealSearchRequest{
Query: "companies using List.js",
Page: 1,
})
if err != nil {
panic(err)
}
for _, company := range companies.Data.Companies {
// 2. Domain Search: pull live contacts + emails
res, err := client.DomainSearch(tomba.Params{
"domain": company.WebsiteURL,
"limit": 20,
})
if err != nil {
continue
}
for _, contact := range res.Data.Emails {
// 3. Verifier: AI + catch-all verification
check, _ := client.EmailVerifier(tomba.Params{"email": contact.Email})
if check.Data.Email.Status != "valid" {
continue
}
// 4. Phone Finder: add a direct-dial number (5 credits)
dial, _ := client.PhoneFinder(tomba.Params{"email": contact.Email})
fmt.Println(contact.Email, contact.Position, string(dial.Data))
}
}
}# export TOMBA_API_KEY=ta_xxxx TOMBA_SECRET_KEY=ts_xxxx
# 1. Reveal: find companies for the List.js list
curl -s -X POST https://api.tomba.io/v1/reveal/search \
-H "X-Tomba-Key: $TOMBA_API_KEY" \
-H "X-Tomba-Secret: $TOMBA_SECRET_KEY" \
-H "Content-Type: application/json" \
-d '{"query": "companies using List.js", "page": 1}'
# 2. Domain Search: pull live contacts from a company
curl -s "https://api.tomba.io/v1/domain-search?domain=piedpiper.com&limit=20" \
-H "X-Tomba-Key: $TOMBA_API_KEY" \
-H "X-Tomba-Secret: $TOMBA_SECRET_KEY"
# 3. Verify: AI + catch-all verification (accept-all included)
curl -s "https://api.tomba.io/v1/email-verifier/richard@piedpiper.com" \
-H "X-Tomba-Key: $TOMBA_API_KEY" \
-H "X-Tomba-Secret: $TOMBA_SECRET_KEY"
# 4. Phone Finder: get a direct-dial number for a contact (5 credits)
curl -s "https://api.tomba.io/v1/phone-finder?email=richard@piedpiper.com" \
-H "X-Tomba-Key: $TOMBA_API_KEY" \
-H "X-Tomba-Secret: $TOMBA_SECRET_KEY"{
"mcpServers": {
"tomba": {
"url": "https://mcp.tomba.io/mcp",
"headers": {
"Authorization": "Bearer <base64 of ta_key:ts_secret>"
}
}
}
}With the MCP server connected, ask your AI assistant:
“Use Tomba to find companies using List.js, pull their key contacts with domain_search, verify every email including catch-all domains, add direct-dial numbers with phone_finder, then export the List.js email list.”
Works in Claude, Cursor, Windsurf and any MCP client. The companies_search, domain_search, email_verifier and phone_finder tools run live. See the remote MCP docs.
Every address comes back with its verification status, catch-all domains included. See the Reveal, Domain Search and Verifier docs for full options.
// pricing
What does the List.js email list cost?
No per-list fees and no lock-in: you pay for the searches that return addresses, from $8.98 per 1,000 search credits.
On Pro Plus (50,000 a month). An Email Finder search that returns an address uses 1 credit; Domain Search uses 1 per 10 results.
Every address a search returns comes with its verification status, catch-all domains flagged, on the same search credit.
If Tomba finds no valid address, the search is free. The same search again in the same usage window is free too.
Start free: 25 search credits every 30 days, no card required.
Plans from 2,500 to 350,000 search credits a month, or one-time packs valid for 12 months. The REST API, 13 SDKs and the MCP server come with every plan.
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