"Company data API" sounds like one product, but the providers behind it solve very different problems. Some specialize in firmographic data (industry, headcount, revenue, location), some in technographic data (the tools and tech stack a company runs), some in funding and ownership data (rounds, investors, legal entities), and some bundle company intent (which accounts are in-market right now). They all advertise huge databases and high accuracy — the real differences are pricing structure, data freshness, and how easily you can build on top of them.
The pricing models alone are wildly different. Enrichment APIs charge per call or per company record; dataset providers charge per export or per seat; enterprise platforms negotiate annual contracts that can run into six figures. A company API with 50M fresh, well-structured records will beat one with 200M stale ones — so database size on its own is a vanity metric. What matters is whether a domain or company name reliably returns current, complete attributes.
We compared the providers that actually deliver in 2026 across what matters most: data type and coverage, freshness, developer experience, and real starting price. The 12 below are the ones worth your time. The short version: if your goal is enriching companies (and the people inside them) with predictable, flat pricing and an API on every plan, you can skip the enterprise contracts entirely.
Quick Comparison
The top 12 company data APIs and enrichment providers at a glance
| Rank | Provider | Starting Price | Data Type | Best For | Rating |
|---|---|---|---|---|---|
| #1 | LinkFinder AI | $29/mo | Company + contact | Flat-price enrichment | 4.9/5 |
| #2 | Clearbit (HubSpot Breeze) | ~$30/100 credits | Firmographic | HubSpot-native enrichment | 4.5/5 |
| #3 | People Data Labs | From $98/mo | Company + person | High-volume enrichment | 4.6/5 |
| #4 | The Companies API | From $95/mo | Firmographic | Domain → company data | 4.5/5 |
| #5 | Coresignal | From $49/mo | Datasets + API | Analytics & AI pipelines | 4.4/5 |
| #6 | Diffbot | From $299/mo | Knowledge graph | Entity & relationship data | 4.3/5 |
| #7 | ZoomInfo | ~$15K/yr | Company + intent | Enterprise GTM | 4.3/5 |
| #8 | Crunchbase | Quote-based | Company + funding | Funding & startup intel | 4.2/5 |
| #9 | Apollo.io | Free / $49/user | Company + contact | All-in-one prospecting | 4.4/5 |
| #10 | Bright Data | ~$0.05/record | Managed datasets | Custom data at scale | 4.1/5 |
| #11 | OpenCorporates | Free / metered | Registry data | Official legal-entity data | 4.0/5 |
| #12 | Bombora | $30K+/yr | Buyer intent | Intent-led ABM | 3.9/5 |
Prices and ratings are starting points and reflect our editorial assessment as of 2026 — always confirm current pricing on each provider's site before committing.
LinkFinder AI
Flat-Price Company & Contact Data — API on Every Plan, No Contract
If you're shopping for a company data API to enrich accounts and the people inside them, we'll save you the comparison spreadsheet: you don't need an enterprise contract or a credit calculator with a PhD to get clean firmographic data.
"We replaced two enrichment tools with LinkFinder and our data bill actually went down." Ahem 👀
That's what teams say after switching from per-record enrichment APIs and seat-based platforms. LinkFinder AI is built around a simple promise: 1 credit = 1 request on any endpoint, billed monthly with no lock-in, and an API included on every plan — including the free tier. You get company profiles, firmographic attributes, verified work emails, and the people behind each account from a single REST call, without per-result multipliers, expiring credits, or overage traps.
Unlike enterprise data platforms that gate the API behind their priciest tier, LinkFinder AI gives you enterprise-grade company and contact data with consumer-friendly pricing and a clean workflow. It's ideal for sales, recruiting, and marketing teams that need consistent, current company-and-people data without managing infrastructure or negotiating an annual deal.
Key Features
- Flat pricing - 1 credit = 1 request on any endpoint, no per-result charges
- API on every plan - Including the free tier; no enterprise contract required
- Company + contact in one call - Firmographics plus the verified people inside the account
- Natural-language search - Describe your ideal account or prospect in plain English
- Bulk processing - Upload a CSV and enrich thousands of companies without rate-limit babysitting
- Simple REST API - Clean endpoints and predictable responses, ready out of the box
Starting at $29/month – includes 10,000 records with simple, transparent pricing and no hidden fees. No per-call surprises, no expiring credits, no overage traps.
✓ Pros
- Flat, predictable 1-credit-per-request pricing
- API access on every plan, including free
- Company and contact data in one workflow
- Monthly billing, no annual lock-in
- Natural-language account discovery
- Works out of the box - no approval process
✗ Cons
- Focused on company and people data (not buyer-intent or signal feeds)
- Deep funding/ownership history is lighter than specialist databases
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Clearbit (HubSpot Breeze Intelligence)
Real-Time Firmographic Enrichment, Native to HubSpot
Clearbit was acquired by HubSpot in 2023 and rebranded as Breeze Intelligence. It's now the default company-enrichment layer inside the HubSpot ecosystem, offering real-time firmographic append on form submission, company and contact enrichment, and IP-based website visitor de-anonymization.
If your go-to-market stack runs on HubSpot, Breeze is the most seamless way to enrich inbound companies and power lead and account scoring — zero integration friction. Pricing is credit-based: roughly $30 for 100 credits, $150 for 1,000, and $700 for 10,000 per month. The catch is that it's increasingly tied to HubSpot, so it's a weaker fit if you're not already in that ecosystem, and auto-renewal terms draw complaints.
Key Features
- Real-time form enrichment - Append company fields on submission
- Company & contact append - Firmographic and role data
- Visitor de-anonymization - IP-level company identification
- HubSpot-native - Zero integration friction inside HubSpot
- Account scoring - Auto-score on enriched firmographic attributes
Credit packs – about $30 / 100 credits, $150 / 1,000, and $700 / 10,000 per month. Best value when bundled with HubSpot Marketing or Sales Hub.
✓ Pros
- Seamless for HubSpot users
- Strong real-time firmographic data
- Visitor identification built in
- Clean, well-known API heritage
✗ Cons
- Increasingly locked to the HubSpot ecosystem
- Less compelling outside HubSpot
- Auto-renewal terms draw complaints
- Lighter on direct contact (email/phone) data
People Data Labs
Massive Company & Person Enrichment API
People Data Labs (PDL) is a developer-first data provider with one of the largest company and person datasets around, delivered through clean enrichment and search APIs. Hand it a domain and it returns a structured company profile — industry, headcount, location, founded year, and more; run a search and it returns matching records — straightforward to integrate into apps and CRMs.
Pricing is credit-based and transparent: company enrichment is the cheaper of the two endpoints (around $0.10 per record, dropping at scale), while person enrichment lands near $0.28. A Pro plan starts near $98/month and there's a free tier with 100 credits to test. The trade-off versus live sources is freshness — because PDL serves a compiled dataset, some records can lag behind a company's current headcount or status.
Key Features
- Huge company & person dataset - Among the largest available
- Company & person enrichment - Domain-to-firmographics in one call
- Transparent per-record pricing - Company records ~$0.10, lower at scale
- Free tier - 100 credits to evaluate
- Developer-friendly - Clean schema, best-in-class docs
- Bulk + streaming delivery - Built for volume pipelines
Pro plan from $98/month – or pay-as-you-go at ~$0.10 per company record (~$0.28 per person record), dropping at volume. Free tier with 100 credits.
✓ Pros
- Enormous company and person coverage
- Cheap, predictable per-company pricing
- Generous free tier for testing
- Great for high-volume enrichment
- Excellent developer experience
✗ Cons
- Some records can be stale vs. live data
- Credit math gets complex at scale
- Email/phone coverage varies by record
- No UI or workflow layer — API only
The Companies API
Domain-In, 300+ Company Data Points Out
The Companies API is a specialist built around one job: give it a domain or email and get back a rich, structured company profile — 300+ data points covering industry, employee count, revenue, location, social links, and tech stack. It's purpose-built to drop into your own product, CRM, or onboarding flow rather than to be used as a UI.
Records are refreshed from the company's website, social profiles, and public sources, which keeps the firmographics current and helps fight database decay. Pricing is refreshingly developer-friendly: the Startup plan is $95/month for 50,000 credits, scaling to $295 (250k) and $595 (500k), which works out to a fraction of a cent per company at volume. The main gotcha is that it's firmographic-only — it doesn't return verified emails or phone numbers, so you'll pair it with a contact layer for outreach.
Key Features
- 300+ data points per company - Deep firmographic and technographic coverage
- Domain or email lookup - Enrich from a single identifier
- Search engine API - Filter and build company lists programmatically
- Fresh, re-analyzable profiles - Refreshed from web and public sources
- Built for products - Clean JSON designed for embedding
From $95/month (Startup) – 50,000 credits, scaling to $295 (250k) and $595 (500k). Works out to a fraction of a cent per company at volume.
✓ Pros
- Extremely cheap per company at scale
- Deep firmographic + technographic detail
- Fresh, re-analyzable company profiles
- Clean, product-ready JSON
✗ Cons
- No verified emails or phone numbers
- Firmographic-only — needs a contact layer for outreach
- Credits are metered per data point
- API-only, no workflow UI
Coresignal
AI-Ready Employee, Company & Job Datasets via API
Coresignal is an API-first data platform aimed at engineers, analysts, and AI teams. It collects from 15+ public sources and delivers structured, deduplicated records — tens of millions of company records plus hundreds of millions of employee profiles, refreshed multiple times a day.
A standout is the Historical Headcount API, which lets you track company growth over time — useful for investment, market research, and hiring-signal use cases. Its Company Enrichment API returns industry, headcount, founding year, revenue estimates, and more in real time or on demand. Data ships in JSON, JSONL, CSV, or Parquet with Elasticsearch-style search. The main gotcha is the pricing curve: the Starter tier is essentially a paid trial with a steep jump to higher tiers, and it returns no verified emails, so you'll pair it with an enrichment layer for outreach.
Key Features
- Company + employee datasets - Deep firmographic and professional coverage
- Multi-source collection - 15+ public sources, cross-referenced and cleaned
- Historical Headcount API - Track company growth trends over time
- Frequent refresh - Data updated multiple times per day
- Flexible formats - JSON, JSONL, CSV, Parquet with search querying
API from $49/month (Starter) – then a jump to roughly $800 (Pro) and $1,500 (Premium). Bulk datasets start around $1,000. Free trial credits available.
✓ Pros
- Large, well-structured, AI-ready data
- Excellent for analytics and ML pipelines
- Historical headcount and hiring signals
- Fast, well-documented API
✗ Cons
- Big pricing gap between Starter and Pro
- No verified emails included
- Requires engineering to extract value
- No UI or workflow automation
Diffbot
A Knowledge Graph of 10B+ Entities and Their Relationships
Diffbot takes a different approach to company data: instead of a curated list, it runs AI-powered extraction across the public web to build a Knowledge Graph of 10B+ entities (companies, people, products, articles) and over a trillion interconnected facts, refreshed roughly every four to five days. You query it for a company and get not just attributes but the relationships — subsidiaries, executives, technologies, news — that standard databases miss.
For teams doing market mapping, competitive intelligence, or AI/LLM pipelines, that graph structure is the real draw. Pricing is credit-based and enterprise-leaning: the Startup plan is $299/month for 250,000 credits, with a free tier of 10,000 credits to test. The trade-offs are a learning curve and credit consumption that adds up fast once you run Knowledge Graph exports and complex queries.
Key Features
- 10B+ entity Knowledge Graph - Companies, people, products, and more
- Relationship mapping - Connects entities across the public web
- Extract API + Crawlbot - Pull structured data from any page
- Frequent refresh - Graph updated every 4–5 days
- Free tier - 10,000 credits to evaluate
From $299/month (Startup) – 250,000 credits, scaling to $899 (1M credits) and custom enterprise tiers. Free tier with 10,000 credits.
✓ Pros
- Unmatched scale and entity relationships
- Finds data standard databases miss
- Frequent refresh cycle
- Powerful for AI and research pipelines
✗ Cons
- Credits get consumed fast at scale
- Real technical learning curve
- Enterprise pricing for small teams
- Overkill for simple domain lookups
ZoomInfo
The Enterprise Standard for Breadth + Intent
ZoomInfo is the enterprise heavyweight, combining one of the largest B2B databases (100M+ company records, 260M+ professional profiles) with intent data, website visitor identification, and workflow automation. Its company enrichment API is comprehensive, but it's gated behind enterprise contracts.
If you need the broadest North American company coverage and have the budget for large-scale outbound or ABM, ZoomInfo is hard to beat on sheer breadth and its intent layer. The downsides are well documented: pricing starts around $15,000/year and most mid-market teams land at $25K–$40K after seats and modules, contracts are annual with narrow cancellation windows, and it's overkill for lean teams that just need firmographics.
Key Features
- 100M+ companies, 260M+ profiles - Market-leading breadth
- Intent data - Prioritize accounts showing buying behavior
- Visitor identification - De-anonymize website traffic
- Comprehensive API - Full company and contact enrichment
- CRM & workflow automation - Enterprise GTM tooling
From ~$15,000/year (SalesOS Professional) – most mid-market teams land at $25K–$40K annually after seats and add-ons. Quote-based, annual contracts.
✓ Pros
- Largest North American company dataset
- Built-in intent and visitor data
- Comprehensive, enterprise-grade API
- Strong CRM and automation tooling
✗ Cons
- Expensive; five-figure annual minimum
- Annual contracts with narrow cancellation
- Overkill for SMBs and startups
- API locked behind enterprise deals
Crunchbase
Funding, Investors & Startup Intelligence via API
Crunchbase is the go-to source for company funding and startup data — rounds, investors, acquisitions, leadership, and growth signals. Its API exposes that dataset programmatically, which makes it a favorite for VC, M&A, and competitive-intelligence teams that care less about contact details and more about who raised what, when, and from whom.
The data is strong where it counts: funding history, investor relationships, and company milestones are deep and well-maintained. The trade-offs are commercial and structural — full API access requires an Enterprise plan that's quote-based and routed through sales, and its firmographic depth for non-funded or private companies is thinner than dedicated company-data APIs. It's a specialist, not an all-purpose enrichment source.
Key Features
- Funding & investor data - Rounds, amounts, investors, valuations
- Company milestones - Acquisitions, leadership, growth signals
- Programmatic API - Query the Crunchbase dataset directly
- Strong startup coverage - Best for venture-backed companies
- Market trend data - Useful for research and sourcing
Quote-based (Enterprise API) – API access routed through sales; pricing varies by usage. A lower-cost Pro tier exists for the web app but not full API access.
✓ Pros
- Best-in-class funding and investor data
- Excellent for VC, M&A, and sourcing
- Trusted, well-known dataset
- Strong startup and milestone coverage
✗ Cons
- Full API requires Enterprise (quote-based)
- Thinner firmographics for non-funded companies
- No verified contact data
- Specialist, not all-purpose enrichment
Apollo.io
All-in-One Company Database, Enrichment & Outreach
Apollo combines a large company-and-contact database with built-in email sequences, a dialer, and an enrichment API. For teams that want company data and a way to act on it in one place, the all-in-one value often beats having a deeper database you can't easily action.
Apollo's pricing makes company enrichment accessible to teams that can't afford ZoomInfo — there's a free plan with 1,200 annual credits to test data quality, and Basic starts around $49/user/month. The trade-offs: firmographic enrichment isn't as deep as ZoomInfo's, mobile number accuracy lags Cognism, and the "unlimited" email credits are subject to fair-use limits that can throttle high-volume prospecting.
Key Features
- Large company & contact database - Broad firmographic and people coverage
- Enrichment API - Append company attributes and contact data
- Built-in outreach - Sequences, dialer, and LinkedIn automation
- Free plan - 1,200 annual credits to test before paying
- CRM sync - Native integrations with major CRMs
Free plan (1,200 annual credits) – Basic from ~$49/user/month, with mobile and export credit caps. Higher tiers add API volume and advanced features.
✓ Pros
- Company data + outreach in one platform
- Accessible pricing and a real free tier
- Large combined database
- Good for SMB and mid-market sales
✗ Cons
- Firmographic depth secondary to outreach
- Mobile number accuracy is weaker
- Fair-use limits on "unlimited" credits
- API limited on the lower tiers
Bright Data
Managed, Compliant Company Datasets at Scale
Bright Data is one of the biggest names in web data, and its company offering is built for scale. Rather than a fixed enrichment endpoint, it delivers structured company datasets and scraper APIs — either as prebuilt datasets or custom pulls tailored to your spec.
It's a popular choice for teams that need large volumes of accurate, current company data with a compliance story attached. Delivery is flexible — pipe data into Amazon S3, Snowflake, or Google Cloud — and pricing works out to roughly five cents per record at volume. The trade-off is that it's an enterprise platform: powerful, but heavier and pricier than a simple REST enrichment call.
Key Features
- Company & professional datasets - Broad coverage as datasets or API
- Prebuilt or custom datasets - Order off-the-shelf or spec your own
- Flexible delivery - S3, Snowflake, Google Cloud, and more
- Compliance focus - Built around public data with documented practices
- Scales to millions of records - Built for enterprise volume
Around $0.05 per record – usage-based at scale, with custom enterprise agreements. Expect higher effective costs on small volumes.
✓ Pros
- Massive, accurate company coverage
- Strong compliance posture
- Flexible cloud delivery
- Battle-tested at enterprise scale
✗ Cons
- Expensive and complex for small teams
- Steeper learning curve
- Overkill for a few thousand records
- You own parsing and structuring output
OpenCorporates
Official Legal-Entity Data from Corporate Registries
OpenCorporates is the open-data option for company data, drawing from official corporate registries worldwide. Its API returns legal-entity records — registered names, jurisdictions, incorporation dates, officers, and filings — that you simply can't get from a sales-oriented database. It's the gold standard when you need authoritative, source-of-truth company identity rather than marketing firmographics.
For KYC, compliance, due diligence, and supplementing commercial APIs with official filing data, it's hard to beat. There's a free tier for non-commercial and open-data use, with paid API plans for commercial volume; data licensing carries share-alike attribution requirements. The trade-off is scope — it's registry data, not enriched contact or technographic data, so it complements rather than replaces a commercial company API.
Key Features
- Official registry data - Sourced from corporate registries worldwide
- Legal-entity detail - Names, jurisdictions, officers, filings
- Global coverage - Tens of millions of companies across jurisdictions
- KYC & compliance ready - Authoritative source-of-truth data
- Free tier - For non-commercial and open-data use
Free for open-data use – paid, metered API plans for commercial volume. Licensing includes share-alike attribution requirements.
✓ Pros
- Authoritative, official company data
- Excellent for KYC and due diligence
- Broad global registry coverage
- Free for non-commercial use
✗ Cons
- Registry data only — no enrichment
- No contact or technographic data
- Share-alike attribution requirements
- Complements, doesn't replace, a commercial API
Bombora
The Buyer-Intent Data Standard for ABM
Bombora is the best-known buyer-intent data provider, surfacing which companies are actively researching topics relevant to your product via its "Company Surge" data. It's less about a company's static attributes and more about which accounts are in-market right now — intelligence that powers account-based marketing and prioritization.
Many other platforms license Bombora's intent under the hood, which is a sign of its standing. The trade-offs are scope and cost: it's an intent layer that you pair with a firmographic source, and pricing is firmly enterprise — typically $30K–$100K+ per year — putting it out of reach for smaller teams.
Key Features
- Company Surge intent - Which accounts are in-market now
- Topic-level signals - Track research across thousands of topics
- Co-op data network - Aggregated from a large publisher co-op
- Powers other platforms - Licensed by many intent vendors
- ABM-ready - Feeds prioritization and targeting
From ~$30K/year – enterprise intent licensing, scaling to $100K+. Pair it with a firmographic or company data source.
✓ Pros
- Category-leading intent data
- Powers many other platforms
- Strong for ABM prioritization
- Broad topic coverage
✗ Cons
- Enterprise-only pricing
- Intent layer, not a firmographic source
- Needs pairing with other data
- Out of reach for SMBs
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