Verified B2B email list

OpenLayers Email List

Target decision-makers at companies with OpenLayers in their stack using deliverable, verified B2B emails for precise technographic outbound campaigns.

301,493

Verified contacts

10,783

Companies

98% accuracy guaranteed Live & fresh data Catch-all verified

OpenLayers Email List (sample 20)

Download Full List
Name & Title Company Email Status
K

Kelby Thomasson

Geographic Information Systems Techical/Analyst Lead

Esrik***@arcgis.com✓ Verified
G

Guoqiang Jiang

associate professor

Tsinghua Universityji***@tsinghua.edu.cn✓ Verified
K

Klaus Wehrle

professor

RWTH Aachen Universitykla***@rwth-aachen.de✓ Verified
J

Judith Drexler

Wetland Ecologist

USGS - Alaska Science Centerjd***@usgs.gov✓ Verified
P

Paul Upson

software developer

ABB Product Group Solarpau***@abb.com✓ Verified
M

Mavel Devera

Exec. Assistant

The IRONMAN Groupmav***@ironman.com✓ Verified
T

Tina Wenzel

online-journalistin

BR24tin***@br.de✓ Verified
S

Scott Hopper

multi-media sales trainer

LocalEdgewdp***@localedge.com✓ Verified
B

Bernadette Tafoya

accountant

The University of New Mexicomb***@unm.edu✓ Verified
J

Judith Skog

Professora Emerita

George Mason Universityj***@gmu.edu✓ Verified
J

Jaime Bonache

professor

Carlos III University of Madridjai***@uc3m.es✓ Verified
N

Neil Adams

Regional Manager Antarctic Meteorology

Bureau of Meteorologyn.***@bom.gov.au✓ Verified
D

Dennis Mccoy

Business Owner

The Church of Englandden***@churchofengland.org✓ Verified
O

Owain Edwards

research scientist

CSIROowa***@csiro.au✓ Verified
E

Etienne Cavalie

Responsable Equipe Analyse & traitement des données, adjoint Service Ingénie des métadonnées

BNFeti***@bnf.fr✓ Verified
J

Jerry Buckley

resident engineer

State of Wyomingjer***@wyo.gov✓ Verified
T

Timo Eirola

professor

aalto university school of science and technologytim***@tkk.fi✓ Verified
D

David Bergman

senior market manager

ENERGY STARd***@energystar.gov✓ Verified
A

Anthoula Mantis

IITS Service Desk

Concordia Universityant***@concordia.ca✓ Verified
N

Neil Manning

Contracts Manager

National Trustnei***@nationaltrust.org.uk✓ Verified

Showing 20 of 301,493 verified contacts

Refine to your ICP

Narrow these 301,493 contacts down to the ones that match your ideal customer profile.

Revenue range Headcount Tech stack Funding stage Hiring signals Buyer intent Job title Location Founded year
Build My Target List — Free

No credit card required.

“We turned a messy list of 8,000 accounts into 200 high-intent companies in an afternoon. Our reply rates doubled the very next week.”
MD

Marcus D.

Head of Growth

Job Title Distribution

3 (15%)
professor
1 (5%)
Geographic Information Systems Techical/Analyst Lead
1 (5%)
associate professor
1 (5%)
Wetland Ecologist
1 (5%)
software developer

Live data, powered by AI

How the OpenLayers email list is built with Tomba

This isn’t a static file that quietly rots. Every technologies list is assembled live from the Tomba API and verified before it reaches you — current, deliverable, and yours to export in minutes.

  1. 1

    Target

    Pick your filters — industry, technology, job title, department, company size, country or US state. Tomba Reveal maps the exact companies that match.

  2. 2

    Discover

    Domain Search pulls the current decision-makers and their work emails from each matching company in real time — pulled live, never a recycled dump.

  3. 3

    Verify

    Every address is SMTP-checked and AI-scored the moment it is found — including catch-all (accept-all) domains most tools skip — for 99% deliverability.

  4. 4

    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 Tomba is the best way to build this list

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 reach leads nobody else can validate.

99% accuracy

Real-time SMTP + AI checks keep bounce rates low and protect your sender reputation and domain health.

Live & fresh

Assembled on demand from live sources — never a resold, months-old database that has already decayed.

Only pay for valid emails

If Tomba can’t find a valid email, the search is free. You never spend credits on dead or guessed addresses.

API, SDKs & MCP

A REST API with 10 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 OpenLayers 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.

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 OpenLayers list
const { data } = await reveal.companiesSearch({
  query: "companies using OpenLayers",
  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);
  }
}
$ npm install tomba

Verification is bundled free — Tomba scores catch-all / accept-all domains other tools skip. See the Reveal, Domain Search and Verifier docs for full options.

Transparent, pay-as-you-go pricing

What does the OpenLayers email list cost?

No per-list fees and no lock-in. You pay only for the verified contacts you export — from $8.90 per 1,000 valid emails, with AI and catch-all verification included.

$8.90/ 1,000 verified emails

Pay-as-you-go credits — 1 credit per valid email found via Domain Search or Email Finder. Buy only what you need.

FreeAI + catch-all verification

Every email is verified — including catch-all domains — at no extra credit cost. Verification is bundled, not billed.

$0for invalid results

If Tomba can’t find a valid email, the search is free. Duplicate lookups in the same month are free too.

Start free — 25 searches & 50 verifications, no card required.

Credits scale from 5,000 to 2,000,000 / month and stay valid for 12 months. REST API, 10 SDKs, and MCP included on every plan.

FAQ

Frequently asked questions

Freshness, catch-all verification, coverage and cost — answered.