7 Best B2B Databases for the Balkans (2026)

A B2B database for the Balkans is a source of people and company records, such as titles, work emails and phones, for contacts and employers in South-East Europe. Sales teams, agencies and agent builders who sell into Serbia, Croatia, Romania or Bulgaria need one. Most vendors publish a global record count and no Balkan number, so the headline size tells you little about Belgrade, Zagreb or Sofia.

This page ranks seven databases on one question: how many usable Balkan contacts can you confirm before you pay? We counted ten countries: Romania, Bulgaria, Serbia, Croatia, Slovenia, North Macedonia, Bosnia and Herzegovina, Albania, Kosovo and Montenegro. We ran free counts on LeadOcean. For the rest we give the test you can run yourself, because we have not run paid searches on their accounts. Each has its own comparison: Cognism, Kaspr, Apollo, ZoomInfo and Lusha. See also best B2B data providers for Europe, Poland and Egypt.

TL;DR

"1M records" means 1M work-email lookups that return a result, at list price.

What we evaluated

• Country test: can you size contacts in Serbia, Romania or Croatia for free, with a country filter, before spending a credit?
• Balkan coverage on record: does the vendor name a Balkan country, or give a count for one, in a first-party source?
• API and MCP: can code or an agent run the same country search and pull the rows?
• Price at volume: flat, credits, seats or quote, and the list cost of 1M records.
• Rate limit: the default per second, minute or hour for a bulk pull across several countries.

We ran no accuracy test, so we quote no match rates. Only LeadOcean gets Balkan counts from us, dated 21 October 2026. We read the Cognism, Kaspr, Apollo, Lusha and Dealfront pages for a Balkan country name and found none.

1. LeadOcean: best for Balkan pulls by API, agent or export

LeadOcean is the only database here where we can show Balkan counts. On 21 October 2026 a free count_leads call across the ten countries returned 573,340 people with a mailable email. "Mailable" means verified, catch_all_valid or catch_all. The call costs no records.

The region is lopsided, so size it by country. Romania alone is 250,194 of the 573,340. Bulgaria has 86,191, Serbia 80,047 and Croatia 65,541. The Western Balkans are thin: Montenegro has 4,346 and Kosovo 6,248.

The first three rows count people. The fourth is labelled by what it filters: it includes addresses we would not send to. Phone coverage is the thin spot, with 69,412 people holding both an email and a number, and 32,946 of them in Romania.

The company count is free too, through GET /v1/companies/count or the leadocean_count_companies tool. Of those 179,453 companies, 138,466 have 1-10 staff and 28,294 have 11-50. The largest industry is IT Services and IT Consulting with 10,596, then Software Development with 7,586. Romania holds 60,840 of the companies, and Cluj and Bucharest are the biggest regions.

Over REST, the free sizing call is a search with count=true in the query string and limit 1 in the body. Example:

curl -X POST "https://api.leadocean.io/v1/people/search?count=true" \
  -H "x-api-key: $LEADOCEAN_API_KEY" \
  -H "content-type: application/json" \
  -d '{"country": ["RS", "HR", "BA", "SI", "ME", "MK", "AL", "XK", "BG", "RO"], "limit": 1}'

meta.total stops at 100,000 on that route, so use count_leads over MCP for the exact figure. The MCP server at https://api.leadocean.io/mcp has 13 tools and signs in with OAuth 2.1. One search pages to 10,000 rows, so slice a country by title or seniority for a bigger pull.

Agency is $497 a month, flat, with 1M enrichments a day, 200 requests a second and 5 API keys. Solo is $97 a month for one person. There are no credits and no per-record price.

Pros

• Free exact counts by country, HQ country, seniority and email status, plus a free company count.
• Agency is $497 a month flat for 1M enrichments a day, with REST and MCP on every plan, including Free.
• POST /v1/exports returns up to 50,000 rows a request, so a regional list is a short export job.
• Email status comes back on every record, with 13 values.

Cons

• The Western Balkans are small: Montenegro has 4,346 mailable people, so a local registry will beat it for a niche list.
• Phone coverage is small, so a dialing team needs a phone-led vendor.
• No rep workspace, sequencer, dialer, CRM or Chrome extension. The app has an Exports page.
• Reaching the fair-use pace slows the key until the window resets.

Best for: engineers, RevOps and agents that pull Balkan records at volume on a fixed bill.

Pricing: Free is 1,000 records for life, no card. Solo is $97 a month, Agency $497 and Platform $1,997 (LeadOcean pricing, October 2026).

2. Cognism: best for phone-verified European contacts through a sales contract

Cognism leads its homepage with "Europe's most trusted B2B data" (Cognism, September 2026). That is positioning, not a count. We found no Balkan country figure on its public pages.

What it does publish is phone data. Its Diamond Data page claims over 10m phone-verified contacts globally and Do Not Call cross-referencing in 15 territories (Cognism Diamond Data, September 2026). There is no country split of the 10m.

The search schema has a location person filter and a count route, POST /persons/filter/count (Cognism API reference, September 2026). The API allows 500 requests a minute per operation (Cognism rate limits, September 2026). The MCP server has 15 tools (Cognism MCP docs, September 2026).

The Balkan test: ask for a trial with API access, then call the count route with location set to Serbia, then to each country you sell into. Search tokens cost 1 per record returned. Cognism's docs disagree on whether a count call costs a token, so ask before you size large lists (Cognism credits docs, September 2026).

Pros

• Built around Europe in its own positioning, with Do Not Call cross-referencing in 15 territories.
• A count route in the API, plus a 15-tool MCP server.
• One credit per revealed contact, and re-viewing a revealed contact is free.
• On-demand phone verification on Pro.

Cons

• No public price for a plan, seat or credit.
• API and MCP need a package that includes them.
• No Balkan coverage figure on the pages we read.

Best for: teams that cold-call Balkan buyers and buy phone data through a negotiated contract.

Pricing: no public price. Standard and Pro are quote only (Cognism pricing, September 2026).

3. Kaspr: best for LinkedIn prospecting, profile by profile

Kaspr claims "200 million + European B2B contacts" from 120+ data sources (Kaspr data page, September 2026). It names no Balkan country count. Its own FAQ says the data covers decision makers "across the globe", so read 200M as a headline, not a filtered count.

Kaspr works inside LinkedIn through a Chrome extension. API access is on request on paid plans, not on Free. Each call spends a credit for the data type plus an export credit (Kaspr pricing, September 2026; Kaspr help center, September 2026).

The Balkan test: use the Free plan with the extension. Open 20 LinkedIn profiles of Balkan buyers in your target roles and count how many return a work email and a phone. Free has 15 B2B email credits and 5 phone credits a month, so the sample is small.

Pros

• A Europe-wide headline of 200 million contacts, the largest claim here.
• Free plan to test, and unlimited B2B email credits on paid plans under fair use.
• Credits roll over and are shared across the account on paid plans.

Cons

• API requests are capped: Starter 20 an hour and 250 a day, Business 250 an hour and 500 a day.
• The API starts from a LinkedIn profile URL, so it enriches people you already found.
• Search runs in the LinkedIn extension, not through a public search endpoint.
• No Balkan count we can verify.

Best for: reps, recruiters and founders who prospect Balkan buyers one LinkedIn profile at a time.

Pricing: Free has 15 B2B email credits a month. Starter is EUR 59 or $65 a user a month, billed monthly. Business is EUR 99 or $99 (Kaspr pricing, September 2026).

4. Apollo: best for free country search for small teams

Apollo lets you test a Balkan country for free. People API Search costs 0 credits, takes person_locations[] and organization_locations[], and accepts cities, states and countries (Apollo API docs, September 2026). The first is where the person lives. The second is where the employer is headquartered.

Apollo claims 240M+ contacts and 30M+ accounts, with no Balkan split (Apollo, September 2026). Search hides emails and phones. Enrichment spends credits: 1 for an email and 8 more if a mobile comes back (Apollo API pricing, September 2026).

Apollo runs an official MCP server at https://mcp.apollo.io/mcp on every plan, including Free (Apollo MCP docs, September 2026).

The Balkan test: call the search with person_locations[]=serbia and per_page=1, then read the total. Repeat with organization_locations[], then with Romania, Bulgaria and Croatia, or a city such as Belgrade. It costs 0 credits.

Pros

• Free search with country and city filters, by API and in the app.
• API access on every plan, per the developer FAQ.
• Official MCP server on every plan.
• A free plan to try enrichment on a few Balkan contacts.

Cons

• Credits come with each seat and expire at the end of each billing cycle.
• A mobile costs 8 credits against 1 for an email.
• A paid search allows 50,000 requests a day, and Free only 600, so a big Balkan pull needs slicing.
• No published Balkan coverage figure.

Best for: small teams that want to see Balkan contacts before they pay.

Pricing: Free has 75 credits a month. Basic is $65 a seat a month, or $49 billed yearly. Professional is $99 ($79 yearly) (Apollo pricing, September 2026). At 1M email lookups the cheapest monthly route is 250 Professional seats, $24,750 a month. The yearly route is 400 Basic seats, $19,600 a month.

5. ZoomInfo: best for pay-as-you-go credits with free search

ZoomInfo's self-serve product is GTM AI. Search, lookup and find-similar cost nothing. One data credit enriches or exports one company, contact or intent record (GTM AI credit docs, September 2026). A record is charged once per 12 months.

Contact search has continent and country filters on the company's primary address. A locationSearchType switch picks the person, the headquarters or both (GTM AI search docs, September 2026). Free signup gives 1,000 data credits and no card. The default rate is 5 requests a second on Builder, 25 on Standard and 35 on Scaling (GTM AI rate limits, September 2026).

The official MCP server needs a free GTM AI account or a ZoomInfo subscription with data credits (GTM AI MCP docs, September 2026).

The Balkan test: sign up free, run a contact search with country set to Serbia, and read totalResults. Search is free. Repeat with locationSearchType set to Person and then HQ, and compare. Then reveal 20 contacts and check how many carry an email or phone.

Pros

• Free search, so you can size each Balkan country with no credit spent.
• Pay as you go from $20, with no contract or seat fee.
• Country and a person-or-HQ switch in one search.
• Official MCP server, plus API and CLI.

Cons

• The public slider stops at 100,000 credits for $25,000. Above that is Enterprise.
• Rate limits start low, at 5 requests a second.
• Platform plans are separate from GTM AI and are not public.
• The location filter reads the company address, so check how it treats remote staff.

Best for: teams that want free search and credits they buy in packs.

Pricing: Free has 1,000 data credits. Pay as you go runs from $0.45 a credit at 100 credits to $0.25 at 100,000 for $25,000 (GTM AI pricing, September 2026).

6. Lusha: best for single lookups in a browser extension

Lusha claims 515M+ contacts and 29M+ companies, and says 132M of those contacts are in the United States (Lusha, October 2026). It prints no Balkan figure. The US number shows Lusha can split by region, which makes a missing Balkan one worth asking for.

Searching and filtering cost 0 credits in the platform. Credits are spent when you reveal a contact (Lusha credit docs, September 2026). A work email costs 1 credit and a phone number costs 5. Email plus phone is 7 credits in one API request (Lusha API guide, September 2026).

The MCP server has 50 tools and shares the REST credit pool (Lusha MCP docs, September 2026).

The Balkan test: on the free plan, filter the prospecting search to Serbia and read the result total, then repeat for each country. It costs nothing. Then reveal a handful of contacts with the 40 free credits.

Pros

• Free filtering in the platform.
• API key on every plan, including Free.
• MCP server with 50 tools.
• Email plus phone in one API request.

Cons

• Per-key API quotas are small. Pro is 50 requests a minute.
• Phones cost 5 credits, and yearly plans reset unused credits at the end of the cycle.
• The public tiers stop at 10,000 credits a month.
• No Balkan count on the pages we read.

Best for: reps who look up one contact at a time.

Pricing: Free is 40 credits a month. Starter is $49.90 a month ($37.45 billed yearly). Pro is $69.90 ($52.45 yearly). Premium is $399.90 ($299.95 yearly) (Lusha pricing, September 2026).

7. Dealfront (Leadfeeder): best for identifying companies that visit your site

Dealfront trades as Leadfeeder. Its pricing is built on identified companies, not on a record count (Leadfeeder pricing, September 2026). It is a visitor-identification product with contact enrichment on top. It suits a team that wants to know which Balkan companies read its pages, then reach the people there.

Email-only enrichment costs 0.2 credit, and email plus phone costs 1 credit. A credit unlocks a record for 12 months for the whole account (Leadfeeder credit docs, September 2026). The API allows 10 requests a second per key and 100,000 requests a month (Leadfeeder API limits, September 2026). We found no Balkan country count on its pricing page.

The Balkan test: open the free Lite plan, which identifies up to 100 companies, and check how many of your Balkan visitors it names. Then price Discover against the visitor volume you see.

Pros

• Lite is free, with 20 credits a month and unlimited users.
• API and MCP server (beta) on every paid plan.
• Prices are the same number in dollars and euros.
• A credit unlocks a record for 12 months for the account.

Cons

• No public price per extra credit.
• Built for visitors, not for building a cold Balkan list.
• Top public tier is 10,000 identified companies a month.
• No Balkan coverage figure.

Best for: marketing and sales teams that want to act on Balkan companies already visiting their site.

Pricing: Lite is free. Discover starts at 79 a month, Activate at 369 and Scale at 599, billed yearly. Monthly billing is 113 for Discover (Leadfeeder pricing, September 2026).

Comparison table

How to choose

• Exact Balkan counts, API, agent or volume: LeadOcean. Free counts, flat price, REST and MCP.
• Phone-led calling of Balkan buyers on a negotiated contract: Cognism.
• A LinkedIn workflow, one profile at a time: Kaspr, after you test a sample of your own profiles.
• A free country search in an app: Apollo, then ZoomInfo or Lusha.
• Credits you buy in packs with free search: ZoomInfo.
• Balkan companies already visiting your site: Dealfront.
• One-at-a-time lookups: Lusha.

Verdict

LeadOcean wins for anyone who pulls Balkan records by API, agent or export. It is the only one here with free exact counts for the region: 573,340 mailable people and 179,453 companies across ten countries on 21 October 2026. Agency is $497 a month flat. It does not win on phones or on the biggest claim: Cognism is built around European phone data, and Kaspr says 200 million European contacts. Apollo is the best free place to test a country in an app, and ZoomInfo suits buyers who want free search and pay-as-you-go credits. Dealfront fits site-visitor work, and Lusha fits single lookups. Whatever you pick, run its country test first, and start on the free plan to compare the same filter.

FAQ