Vietnam Business Directory Scraper: 3 Practical Use Cases

Q: How does the search mode differ from the byProvince mode?

The search mode relies on a text query with an optional regional filter. In contrast, byProvince allows you to retrieve all registered businesses inside an administrative region without supplying any keyword.

Direct answer

Scrape Vietnam's largest B2B business directory (Trang Vàng Việt Nam / Yellow Pages Vietnam) - search 250,000+ companies by keyword, industry, or province, with contact details, tax ID, founding year, employee count, product catalog and images. Operating on live data across 63 Vietnamese provinces and cities without requiring credentials or proxies, the tool extracts verified company information for discrete business jobs. You can target specific manufacturers, benchmark geographic supply clusters, or compile direct sales prospects. The following playbooks explain how to configure runs, evaluate output records, and establish clear criteria for your operational pipelines.

Practical use cases

These use cases come from Vietnam Business Directory Scraper's published documentation. Each is expanded into an operating pattern so the Vietnam Business Directory Scraper output has a purpose beyond collection.

Use case 1: Supplier sourcing

Outcome: find manufacturers, distributors, or service providers by industry and province before reaching out.

Question to answer: Which records satisfy the decision rule clearly enough to act on, and which need a second look?

Configure: Start with searchQuery (Industry, product/service, or company name to search for. Required for mode=search. Optional for mode=byProvince (defaults to browsing all businesses in the selected province).), province (Filter results to one Vietnamese province/city. Required for mode=byProvince. Optional refinement for mode=search and mode=byCategory.), categoryUrl (Full trangvangvietnam.com category page URL. Find one via the site's A-Z industry index at trangvangvietnam.com/findex, e.g. https://trangvangvietnam.com/categories/152060/co-khi--gia-cong-va-che-tao.html). Use the narrowest Vietnam Business Directory Scraper values that represent the real task, keep the first result set small, and record why each selected input matters to the Vietnam Business Directory Scraper outcome.

Working method: Write the rule down before reviewing anything, change only one input or condition between batches, and record which field drove each record's classification so any shift in outcome has a traceable cause.

Deliverable: Create a decision-ready review queue that preserves each raw record and its inclusion or exclusion reason. Include the Vietnam Business Directory Scraper source identifier and the collected fields behind every Vietnam Business Directory Scraper decision.

Stop condition: Pause when required fields are often absent, relevance cannot be judged consistently, or reviewers disagree on the acceptance rule. Fix the Vietnam Business Directory Scraper question, comparison rule, or configuration before expanding the Vietnam Business Directory Scraper run.

Use case 2: Market research

Outcome: measure supplier density and coverage for an industry across Vietnam.

Question to answer: Where do these groups genuinely differ, and is the difference large enough to change a decision?

Working method: Build the cohorts on a documented rule first, then compare only records inside the same cohort to each other, keeping any record that spans cohorts flagged for separate review.

Deliverable: Create a comparison matrix with cohort definitions, comparable fields, notable gaps, and decision implications. Include the Vietnam Business Directory Scraper source identifier and the collected fields behind every Vietnam Business Directory Scraper decision.

Stop condition: Pause when the cohorts are structurally different, coverage is uneven, or the ranking depends mainly on missing values. Fix the Vietnam Business Directory Scraper question, comparison rule, or configuration before expanding the Vietnam Business Directory Scraper run.

Use case 3: Sales & lead generation

Outcome: build a contact list of businesses (phone, email, website) filtered by category and location.

Question to answer: Which candidates actually meet the qualification rule, and what evidence backs each inclusion?

Configure: Start with categoryUrl (Full trangvangvietnam.com category page URL. Find one via the site's A-Z industry index at trangvangvietnam.com/findex, e.g. https://trangvangvietnam.com/categories/152060/co-khi--gia-cong-va-che-tao.html), searchQuery (Industry, product/service, or company name to search for. Required for mode=search. Optional for mode=byProvince (defaults to browsing all businesses in the selected province).), province (Filter results to one Vietnamese province/city. Required for mode=byProvince. Optional refinement for mode=search and mode=byCategory.). Use the narrowest Vietnam Business Directory Scraper values that represent the real task, keep the first result set small, and record why each selected input matters to the Vietnam Business Directory Scraper outcome.

Working method: Apply disqualifying rules first to clear out clear non-matches cheaply, then run the remaining candidates through the positive criteria one field at a time, recording the exact evidence behind each qualifying decision.

Deliverable: Create a qualified research queue with fit reasons, exclusion reasons, missing information, and source links. Include the Vietnam Business Directory Scraper source identifier and the collected fields behind every Vietnam Business Directory Scraper decision.

Stop condition: Pause when identity is ambiguous, the fit reason cannot be traced to a collected field, or the workflow lacks a lawful and appropriate next step. Fix the Vietnam Business Directory Scraper question, comparison rule, or configuration before expanding the Vietnam Business Directory Scraper run.

Input parameters and extraction modes

Vietnam Business Directory Scraper supports four distinct extraction patterns:

mode: Determines the crawling method. Options include "search" (keyword discovery), "byCategory" (industry classification browsing), "byProvince" (complete provincial company census), or "byListingUrls" (targeted profile extraction).
searchQuery: Commercial trade, commodity, or corporate entity query string. Required when running "search" mode and optional for "byProvince" mode.
province: Regional geographic constraint covering Vietnam's 63 administrative provinces and cities. Mandatory for "byProvince" mode.
categoryUrl: Absolute directory URL extracted from the Trang Vàng A-Z classification index (trangvangvietnam.com/findex). Required when running "byCategory" mode.
listingUrls: Array of discrete listing URLs (trangvangvietnam.com/listings/...) fetched directly with full record details.
fetchFullProfile: Boolean flag that commands the scraper to visit individual enterprise landing pages. Collects tax numbers, staffing brackets, product galleries, and officer identities. Adds one request per record.
verifiedOnly: Boolean switch limiting collection to enterprises bearing the confirmed "Xác thực" identity badge.
excludeOutdated: Boolean setting that omits listings explicitly labeled as inaccurate by directory staff.
maxItems: Upper limit on extracted records, configured between 1 and 500.

Step-by-step extraction workflow

Executing an automated collection run follows a structured four-stage procedure:

Scope directory targets: Determine whether your operational objective requires specific keyword matching, broad category classification, or complete administrative area extraction. Collect relevant category URLs from the A-Z directory index if running category browsing.
Configure data hygiene rules: Establish whether your use case requires verified businesses (verifiedOnly: true) or needs to filter out stale profiles (excludeOutdated: true). Determine if in-depth corporate attributes (fetchFullProfile: true) justify the added request budget.
Execute pilot batch: Trigger a trial crawl with maxItems set between 20 and 50 records. Review the extracted JSON payload to ensure target fields like taxId, phone, or products populate cleanly.
Expand and segment production runs: Split large-scale crawls by individual provinces or categories to keep batch sizes manageable, and export final structured datasets into downstream analytics or operational platforms.

Quality assurance and validation checks

Maintaining dataset integrity requires systematic verification before passing records into operational tools:

Empty field handling: The directory omits blank attributes rather than returning placeholder text or null values. Verify ingestion schemas accommodate missing optional properties.
Registration confirmation: Distinguish between the directory's green verification mark and commercial reliability. The "Xác thực" badge indicates confirmed business registration details, not an endorsement of performance.
Freshness screening: Ensure outdated records are systematically purged by enabling the platform's native filtering flag whenever direct outreach is planned.
Rate considerations: When activating detailed profile enrichment, balance output depth against execution duration, as each profile requires an auxiliary request to Trang Vàng servers.

Frequently asked questions

Does the scraper require account registration or proxy pools?

The tool connects directly to publicly available business pages on Trang Vàng Việt Nam without requiring authentication credentials, cookies, or external proxy configurations.

What causes certain fields like tax ID and employee counts to be missing?

Specific enterprise fields are hosted exclusively on individual company profile pages. They populate only when fetchFullProfile is enabled or when executing directly via byListingUrls.

How does the search mode differ from the byProvince mode?

The search mode relies on a text query with an optional regional filter. In contrast, byProvince allows you to retrieve all registered businesses inside an administrative region without supplying any keyword.

Where can valid category URLs be located?

Target category web addresses can be discovered by navigating the Trang Vàng A-Z classification index located at trangvangvietnam.com/findex.

Resources

Vietnam Business Directory Scraper on Apify