WE DISCOVER AND QUALIFY COMPANIES OTHERS CAN'T FIND.

Sales teams on Leadbay 5× efficiency by simply unlocking untapped opportunities in the most data-scarce, fragmented markets.

Industry leaders who trust us:

WE DISCOVER AND QUALIFIES COMPANIES OTHERS CAN'T FIND.

Sales teams on Leadbay 5× efficiency by simply unlocking untapped opportunities in the most data-scarce, fragmented markets.

Industry leaders who trust us:

WE DISCOVER AND QUALIFY COMPANIES OTHERS CAN'T FIND.

Sales teams on Leadbay 5× efficiency by simply unlocking untapped opportunities in the most data-scarce, fragmented markets.

Industry leaders who trust us:

Customers.

Customers.

Customers.

Our customers are large and small companies conquering vast, fragmented markets of micro, small, and mid-sized businesses in France and the US.

Product.

Product.

Proprietary AI models capable of find and qualify companies in the most data-scarce, fragmented markets.

Company.

Company.

Engineering with passion in Paris, distributed across France and the US.

Engineering with passion in Paris, distributed across France and the US.

Company.

Learn more about our values and vision.

Q&A.

Q&A.

We answer the most common questions teams have before adopting Leadbay.

We answer the most common questions teams have before adopting Leadbay.

What is Leadbay.ai?

Leadbay automates B2B leads discovery & qualification. It detects the companies most likely to buy, including those that leave almost no trace online. You receive relevant leads, ranked by priority, without having to search for them yourself.

Where does the data come from?

Leadbay is a data provider, supported by a team of 7 engineers who rigorously build and update our database by cross-referencing more than 50 sources (OpenData, Insee, Crawling, Social Media, Press, verticalized datasets).

How does the prediction work?

Leadbay is the first DeepTech company in the B2B Sales industry to develop a proprietary model specifically dedicated to prospecting. 1. Leadbay knows the full scope of companies in your market. 2. For each client, Leadbay customizes its model by integrating your internal data (CRM, ERP, CSV files) as well as feedback from your sales team. 3. Each company is analyzed across more than 500 criteria to provide you with a prioritized list of companies with the highest purchase potential. The model is self-learning and dynamic. It continuously adapts to changes in your target market as well as your internal performance.

Leadbay versus scoring companies?

Until now, companies relied on digital “signals” (hiring, news, fundraising, website activity) to qualify leads—leaving aside a massive untapped market: companies less visible online. Leadbay focuses on mapping the full landscape of companies in a market and identifying those most likely to buy using its predictive model.

Leadbay versus databases?

Tools like Apollo, ZoomInfo, Cognism, or LinkedIn Sales Navigator are volume-driven models, not quality-driven. Each database requires extra manual work (data scientists, GTM engineers, SDRs) to turn cold leads into sales-ready leads. Leadbay, on the other hand, delivers qualified leads directly, ranked by potential, ready to be contacted — no technical effort required, accessible to all, and cost-effective.

Leadbay versus prospecting automation tools?

Leadbay doesn’t prospect in place of your sales team — it provides the data and predictive insights needed to make them as effective as possible. Tools like Lemlist, 11x, or AiSDR are complementary: they can be used as automation aids to activate your pipeline. Feeding your campaigns with Leadbay’s predictive leads makes them mathematically more effective. These won’t be high-volume campaigns, but rather campaigns focused on prospect quality.

Leadbay versus CRM/ERP?

A CRM or ERP is a system of record. Data needs to be entered into these systems to make them effective, which requires significant human effort and costs before extracting value. That’s why Leadbay is called a “pre-CRM” tool: it feeds your CRM and your sales team with the leads most likely to buy in your target market. Versus in-CRM scoring systems In-CRM scoring systems rely solely on internal CRM data, making them more like pipeline monitoring tools than prospecting models. CRM enrichment and scoring Leadbay automatically cleans and enriches your CRM by analyzing contacts, companies, deals, and activities. It removes duplicates, standardizes data, fills in missing information, and scores all your accounts—active, dormant, and inbound leads—ensuring a clean, actionable database with no manual effort.

Is my data shared with other clients?

No data is ever shared between clients. Leadbay is a data provider: it enriches your accounts with proprietary data. Any data you provide remains private to your company account. Legally, contractual commitments regarding data protection are defined in the DPA (Data Processing Agreement), annexed to our Terms & Conditions. As a data processor under Article 28 of the GDPR, Leadbay is required to process client data solely on the client’s instructions. It is strictly prohibited from sharing one client’s data with others, under penalty of liability. Databases created by Leadbay on behalf of its clients remain the exclusive property of those clients.

How much does Leadbay cost?

Leadbay charges per user, with pricing from €124 to €349/month. Each user can consume Leadbay data with no limit. A broader plan is available for Growth, Marketing, or Manager profiles who want to consume larger volumes of leads, with lists going up to 300 leads instead of 50. Contact enrichment (phone numbers and emails) is available via an API called FullEnrich. Only the tokens consumed for enrichment are billed at the end of the month, at €0.06/token. For reference, €30 gets you about 50 mobile phone numbers or 500 emails.

What are the best practices from top Leadbay users?

The key is consistency. Sales is a marathon, not a sprint. Just spend a few minutes each week on Leadbay to: - Identify new high-potential scored leads, - Launch as many prospecting actions as you have accounts in your plan, - Update your feedback (won/lost/not relevant) to refine future suggestions. A simple routine = a continuously more qualified pipeline. You don’t need to spend hours: just a few well-used minutes make a big difference.

What is Leadbay.ai?

Leadbay automates B2B leads discovery & qualification. It detects the companies most likely to buy, including those that leave almost no trace online. You receive relevant leads, ranked by priority, without having to search for them yourself.

Where does the data come from?

Leadbay is a data provider, supported by a team of 7 engineers who rigorously build and update our database by cross-referencing more than 50 sources (OpenData, Insee, Crawling, Social Media, Press, verticalized datasets).

How does the prediction work?

Leadbay is the first DeepTech company in the B2B Sales industry to develop a proprietary model specifically dedicated to prospecting. 1. Leadbay knows the full scope of companies in your market. 2. For each client, Leadbay customizes its model by integrating your internal data (CRM, ERP, CSV files) as well as feedback from your sales team. 3. Each company is analyzed across more than 500 criteria to provide you with a prioritized list of companies with the highest purchase potential. The model is self-learning and dynamic. It continuously adapts to changes in your target market as well as your internal performance.

Leadbay versus scoring companies?

Until now, companies relied on digital “signals” (hiring, news, fundraising, website activity) to qualify leads—leaving aside a massive untapped market: companies less visible online. Leadbay focuses on mapping the full landscape of companies in a market and identifying those most likely to buy using its predictive model.

Leadbay versus databases?

Tools like Apollo, ZoomInfo, Cognism, or LinkedIn Sales Navigator are volume-driven models, not quality-driven. Each database requires extra manual work (data scientists, GTM engineers, SDRs) to turn cold leads into sales-ready leads. Leadbay, on the other hand, delivers qualified leads directly, ranked by potential, ready to be contacted — no technical effort required, accessible to all, and cost-effective.

Leadbay versus prospecting automation tools?

Leadbay doesn’t prospect in place of your sales team — it provides the data and predictive insights needed to make them as effective as possible. Tools like Lemlist, 11x, or AiSDR are complementary: they can be used as automation aids to activate your pipeline. Feeding your campaigns with Leadbay’s predictive leads makes them mathematically more effective. These won’t be high-volume campaigns, but rather campaigns focused on prospect quality.

Leadbay versus CRM/ERP?

A CRM or ERP is a system of record. Data needs to be entered into these systems to make them effective, which requires significant human effort and costs before extracting value. That’s why Leadbay is called a “pre-CRM” tool: it feeds your CRM and your sales team with the leads most likely to buy in your target market. Versus in-CRM scoring systems In-CRM scoring systems rely solely on internal CRM data, making them more like pipeline monitoring tools than prospecting models. CRM enrichment and scoring Leadbay automatically cleans and enriches your CRM by analyzing contacts, companies, deals, and activities. It removes duplicates, standardizes data, fills in missing information, and scores all your accounts—active, dormant, and inbound leads—ensuring a clean, actionable database with no manual effort.

Is my data shared with other clients?

No data is ever shared between clients. Leadbay is a data provider: it enriches your accounts with proprietary data. Any data you provide remains private to your company account. Legally, contractual commitments regarding data protection are defined in the DPA (Data Processing Agreement), annexed to our Terms & Conditions. As a data processor under Article 28 of the GDPR, Leadbay is required to process client data solely on the client’s instructions. It is strictly prohibited from sharing one client’s data with others, under penalty of liability. Databases created by Leadbay on behalf of its clients remain the exclusive property of those clients.

How much does Leadbay cost?

Leadbay charges per user, with pricing from €124 to €349/month. Each user can consume Leadbay data with no limit. A broader plan is available for Growth, Marketing, or Manager profiles who want to consume larger volumes of leads, with lists going up to 300 leads instead of 50. Contact enrichment (phone numbers and emails) is available via an API called FullEnrich. Only the tokens consumed for enrichment are billed at the end of the month, at €0.06/token. For reference, €30 gets you about 50 mobile phone numbers or 500 emails.

What are the best practices from top Leadbay users?

The key is consistency. Sales is a marathon, not a sprint. Just spend a few minutes each week on Leadbay to: - Identify new high-potential scored leads, - Launch as many prospecting actions as you have accounts in your plan, - Update your feedback (won/lost/not relevant) to refine future suggestions. A simple routine = a continuously more qualified pipeline. You don’t need to spend hours: just a few well-used minutes make a big difference.

What is Leadbay.ai?

Leadbay automates B2B leads discovery & qualification. It detects the companies most likely to buy, including those that leave almost no trace online. You receive relevant leads, ranked by priority, without having to search for them yourself.

Where does the data come from?

Leadbay is a data provider, supported by a team of 7 engineers who rigorously build and update our database by cross-referencing more than 50 sources (OpenData, Insee, Crawling, Social Media, Press, verticalized datasets).

How does the prediction work?

Leadbay is the first DeepTech company in the B2B Sales industry to develop a proprietary model specifically dedicated to prospecting. 1. Leadbay knows the full scope of companies in your market. 2. For each client, Leadbay customizes its model by integrating your internal data (CRM, ERP, CSV files) as well as feedback from your sales team. 3. Each company is analyzed across more than 500 criteria to provide you with a prioritized list of companies with the highest purchase potential. The model is self-learning and dynamic. It continuously adapts to changes in your target market as well as your internal performance.

Leadbay versus scoring companies?

Until now, companies relied on digital “signals” (hiring, news, fundraising, website activity) to qualify leads—leaving aside a massive untapped market: companies less visible online. Leadbay focuses on mapping the full landscape of companies in a market and identifying those most likely to buy using its predictive model.

Leadbay versus databases?

Tools like Apollo, ZoomInfo, Cognism, or LinkedIn Sales Navigator are volume-driven models, not quality-driven. Each database requires extra manual work (data scientists, GTM engineers, SDRs) to turn cold leads into sales-ready leads. Leadbay, on the other hand, delivers qualified leads directly, ranked by potential, ready to be contacted — no technical effort required, accessible to all, and cost-effective.

Leadbay versus prospecting automation tools?

Leadbay doesn’t prospect in place of your sales team — it provides the data and predictive insights needed to make them as effective as possible. Tools like Lemlist, 11x, or AiSDR are complementary: they can be used as automation aids to activate your pipeline. Feeding your campaigns with Leadbay’s predictive leads makes them mathematically more effective. These won’t be high-volume campaigns, but rather campaigns focused on prospect quality.

Leadbay versus CRM/ERP?

A CRM or ERP is a system of record. Data needs to be entered into these systems to make them effective, which requires significant human effort and costs before extracting value. That’s why Leadbay is called a “pre-CRM” tool: it feeds your CRM and your sales team with the leads most likely to buy in your target market. Versus in-CRM scoring systems In-CRM scoring systems rely solely on internal CRM data, making them more like pipeline monitoring tools than prospecting models. CRM enrichment and scoring Leadbay automatically cleans and enriches your CRM by analyzing contacts, companies, deals, and activities. It removes duplicates, standardizes data, fills in missing information, and scores all your accounts—active, dormant, and inbound leads—ensuring a clean, actionable database with no manual effort.

Is my data shared with other clients?

No data is ever shared between clients. Leadbay is a data provider: it enriches your accounts with proprietary data. Any data you provide remains private to your company account. Legally, contractual commitments regarding data protection are defined in the DPA (Data Processing Agreement), annexed to our Terms & Conditions. As a data processor under Article 28 of the GDPR, Leadbay is required to process client data solely on the client’s instructions. It is strictly prohibited from sharing one client’s data with others, under penalty of liability. Databases created by Leadbay on behalf of its clients remain the exclusive property of those clients.

How much does Leadbay cost?

Leadbay charges per user, with pricing from €124 to €349/month. Each user can consume Leadbay data with no limit. A broader plan is available for Growth, Marketing, or Manager profiles who want to consume larger volumes of leads, with lists going up to 300 leads instead of 50. Contact enrichment (phone numbers and emails) is available via an API called FullEnrich. Only the tokens consumed for enrichment are billed at the end of the month, at €0.06/token. For reference, €30 gets you about 50 mobile phone numbers or 500 emails.

What are the best practices from top Leadbay users?

The key is consistency. Sales is a marathon, not a sprint. Just spend a few minutes each week on Leadbay to: - Identify new high-potential scored leads, - Launch as many prospecting actions as you have accounts in your plan, - Update your feedback (won/lost/not relevant) to refine future suggestions. A simple routine = a continuously more qualified pipeline. You don’t need to spend hours: just a few well-used minutes make a big difference.

What is Leadbay?

Leadbay is a platform that collects information about sales prospects (name, company, email, etc.) from different sources, verifies them automatically, and delivers them to you so you or your team can engage them.

Where does the data come from?

Leadbay is a data provider, supported by a team of 7 engineers who rigorously build and update our database by cross-referencing more than 50 sources (OpenData, Insee, Crawling, Social Media, Press, verticalized datasets).

How does the prediction work?

Leadbay is the first DeepTech company in the B2B Sales industry to develop a proprietary model specifically dedicated to prospecting. 1. Leadbay knows the full scope of companies in your market. 2. For each client, Leadbay customizes its model by integrating your internal data (CRM, ERP, CSV files) as well as feedback from your sales team. 3. Each company is analyzed across more than 500 criteria to provide you with a prioritized list of companies with the highest purchase potential. The model is self-learning and dynamic. It continuously adapts to changes in your target market as well as your internal performance.

Leadbay versus scoring companies?

Until now, companies relied on digital “signals” (hiring, news, fundraising, website activity) to qualify leads—leaving aside a massive untapped market: companies less visible online. Leadbay focuses on mapping the full landscape of companies in a market and identifying those most likely to buy using its predictive model.

Leadbay versus databases?

Tools like Apollo, ZoomInfo, Cognism, or LinkedIn Sales Navigator are volume-driven models, not quality-driven. Each database requires extra manual work (data scientists, GTM engineers, SDRs) to turn cold leads into sales-ready leads. Leadbay, on the other hand, delivers qualified leads directly, ranked by potential, ready to be contacted — no technical effort required, accessible to all, and cost-effective.

Leadbay versus prospecting automation tools?

Leadbay doesn’t prospect in place of your sales team — it provides the data and predictive insights needed to make them as effective as possible. Tools like Lemlist, 11x, or AiSDR are complementary: they can be used as automation aids to activate your pipeline. Feeding your campaigns with Leadbay’s predictive leads makes them mathematically more effective. These won’t be high-volume campaigns, but rather campaigns focused on prospect quality.

Leadbay versus CRM/ERP?

A CRM or ERP is a system of record. Data needs to be entered into these systems to make them effective, which requires significant human effort and costs before extracting value. That’s why Leadbay is called a “pre-CRM” tool: it feeds your CRM and your sales team with the leads most likely to buy in your target market. Versus in-CRM scoring systems In-CRM scoring systems rely solely on internal CRM data, making them more like pipeline monitoring tools than prospecting models. CRM enrichment and scoring Leadbay automatically cleans and enriches your CRM by analyzing contacts, companies, deals, and activities. It removes duplicates, standardizes data, fills in missing information, and scores all your accounts—active, dormant, and inbound leads—ensuring a clean, actionable database with no manual effort.

Is my data shared with other clients?

No data is ever shared between clients. Leadbay is a data provider: it enriches your accounts with proprietary data. Any data you provide remains private to your company account. Legally, contractual commitments regarding data protection are defined in the DPA (Data Processing Agreement), annexed to our Terms & Conditions. As a data processor under Article 28 of the GDPR, Leadbay is required to process client data solely on the client’s instructions. It is strictly prohibited from sharing one client’s data with others, under penalty of liability. Databases created by Leadbay on behalf of its clients remain the exclusive property of those clients.

How much does Leadbay cost?

Leadbay charges per user, with pricing from €124 to €349/month. Each user can consume Leadbay data with no limit. A broader plan is available for Growth, Marketing, or Manager profiles who want to consume larger volumes of leads, with lists going up to 300 leads instead of 50. Contact enrichment (phone numbers and emails) is available via an API called FullEnrich. Only the tokens consumed for enrichment are billed at the end of the month, at €0.06/token. For reference, €30 gets you about 50 mobile phone numbers or 500 emails.

What are the best practices from top Leadbay users?

The key is consistency. Sales is a marathon, not a sprint. Just spend a few minutes each week on Leadbay to: - Identify new high-potential scored leads, - Launch as many prospecting actions as you have accounts in your plan, - Update your feedback (won/lost/not relevant) to refine future suggestions. A simple routine = a continuously more qualified pipeline. You don’t need to spend hours: just a few well-used minutes make a big difference.

Trusted by people at :

Trusted by people at :

WE DISCOVER AND QUALIFIES COMPANIES OTHERS CAN'T FIND.

Sales teams on Leadbay 5x efficiency by simply unlocking untapped opportunities in the most data-scarce, fragmented markets.

Industry leaders who trust us:

  • logo Google