Error code:   ConfigNamesError
Exception:    AttributeError
Message:      'str' object has no attribute 'items'
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/dataset/config_names.py", line 67, in compute_config_names_response
                  config_names = get_dataset_config_names(
                                 ^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/inspect.py", line 161, in get_dataset_config_names
                  dataset_module = dataset_module_factory(
                                   ^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/load.py", line 1207, in dataset_module_factory
                  raise e1 from None
                File "/usr/local/lib/python3.12/site-packages/datasets/load.py", line 1182, in dataset_module_factory
                  ).get_module()
                    ^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/load.py", line 690, in get_module
                  config_name: DatasetInfo.from_dict(dataset_info_dict)
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/info.py", line 284, in from_dict
                  return cls(**{k: v for k, v in dataset_info_dict.items() if k in field_names})
                                                 ^^^^^^^^^^^^^^^^^^^^^^^
              AttributeError: 'str' object has no attribute 'items'

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Serbia Business Email Database — Market Intelligence Dataset

25,000 verified Serbia contacts are available from LeadsBlue →. This open dataset provides the aggregate market intelligence behind that database — contact volume, benchmark open/reply rates, send timing, and compliance for the Serbia segment.

At a glance: A research dataset describing the Serbia Business Email Database market: verified-contact volume, industry distribution, outreach benchmarks, and regulatory framework, published by LeadsBlue Research under CC BY 4.0.

Key figures

Metric	Value
Verified contacts in segment	25,000
Typical email open rate	16-24%
Typical email reply rate	2.5-5.5%
Best send days	Tuesday, Wednesday, Thursday
Best send time (local)	09:00-11:00 CET
Geography	Serbia
Industry verticals benchmarked	14
License	CC BY 4.0

📥 Get the full Serbia Business Email Database — individual verified business records, ready to use: Download from LeadsBlue →

Market overview

Serbia is the largest economy in the Western Balkans and a rapidly growing IT services hub. Belgrade is both the capital and commercial centre. Serbia has attracted major foreign investment in manufacturing (Stellantis/Fiat, Bosch, Continental) and IT services. The country has a significant tech talent base and growing startup ecosystem.

Primary business hubs: Belgrade, Novi Sad (IT hub), Niš, Kragujevac (automotive).

Outreach benchmarks & strategy

Serbian B2B cold email in English works well for the IT sector. Serbian-language outreach is preferred for domestic companies. Belgrade's tech community is internationally oriented and growth-focused.

Files in this dataset

File	Contents
`data/market_overview.csv`	Segment-level metrics: contact volume, benchmark rates, send timing
`data/industry_benchmarks.csv`	Open/reply benchmarks across 14 industry verticals
`data/compliance.csv`	Regulatory framework, business culture, decision-maker profile, hubs

Methodology

Figures are aggregated and anonymized from LeadsBlue's verified contact operations and public business-registry baselines. No personal records are included in this dataset — only segment-level statistics.

How to cite

LeadsBlue Research. (2026). Serbia Business Email Database — Market Intelligence Dataset. Derived from the B2B Cold Email Benchmark Report 2026 (https://doi.org/10.5281/zenodo.20136256). CC BY 4.0. Source: https://leadsblue.com

@dataset{leadsblue_serbia_business_email_dataset_2026,
  author    = {Johnson, Luther},
  title     = {Serbia Business Email Database -- Market Intelligence Dataset},
  year      = {2026},
  publisher = {LeadsBlue Research},
  doi       = {10.5281/zenodo.20136256},
  url       = {https://leadsblue.com/leads/serbia-business-email-leads-database/}
}

Source & full dataset

This aggregate dataset is published by LeadsBlue Research. The full verified business email list — with individual business contact records — is available at Serbia Business Email Database.

Related resources: Benchmark report (Zenodo) · Research hub · Interactive tools

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