Definitive Healthcare vs Ocean.io: What You Actually Need
Comparing Definitive Healthcare to Ocean.io is like comparing a hospital MRI machine to a general-purpose metal detector. They both "find things," but they're built for entirely different jobs. A thread on r/gtmengineering put it bluntly: standard B2B data tools are "almost worthless" for healthcare verticals because you need procedure volumes, claims data, and provider affiliations - not just company names and email addresses.
These tools don't compete. They serve fundamentally different markets, and picking the wrong one wastes real money.
The 30-Second Verdict
- Need claims data, procedure volumes, and facility intelligence - Definitive Healthcare. Budget accordingly: the median customer pays $50,150/year.
- Need AI-powered lookalike account discovery for general B2B - Ocean.io. Starts at $79/month.
- Skip both if you just need verified emails and direct dials for healthcare decision-makers without a $50K contract. Prospeo has a free tier, no commitment, and 98% email accuracy.

Side-by-Side Comparison
| Definitive Healthcare | Ocean.io | |
|---|---|---|
| Primary use | Healthcare intelligence | B2B lookalike search |
| Database | 9,000+ hospitals, 2.3M physicians | 55M company profiles, 330M data points |
| Healthcare data | Claims, procedures, affiliations | None |
| Integrations | CRM and data integrations | HubSpot, Pipedrive + Chrome extension |
| Pricing | ~$25K-$500K+/yr | From $79/mo + credit-based minimums |
| Review score | 5.7/10 (TrustRadius) | 3.1/5 (G2, 12 reviews) |
| Free trial | No | 14 days |
| Best for | Healthcare intelligence teams | General B2B account discovery |

Definitive Healthcare costs $50K+/year. Ocean.io lacks healthcare depth. If you just need verified emails and direct dials for healthcare decision-makers, Prospeo delivers 300M+ profiles with 98% email accuracy and 125M+ verified mobiles - data refreshed every 7 days, not every 6 weeks.
Get healthcare contacts at $0.01/email - no annual contract required.
What Each Platform Actually Does
Definitive Healthcare
Definitive Healthcare is a healthcare commercial intelligence platform - not a prospecting tool in the traditional sense. Its Atlas Dataset covers 9,000+ hospitals, 2.3M physicians, 114,000 physician groups, and 100,000 skilled nursing facilities. You're buying claims analytics, procedure volumes, technology install data, and provider affiliations. This is the data that lets medtech and life sciences teams figure out which facilities perform the most hip replacements or which physician groups are adopting a specific device category.

The company pulled $252.2M in FY2024 revenue, though projected FY2025 revenue dipped to $234M-$240M - a signal worth watching. It serves roughly 2,500 customers in a healthcare BI market projected to grow from $10.05B to $35.72B by 2034 at a 13.52% CAGR, which explains why the pricing is what it is.
Dominance doesn't mean beloved, though. Here's the honest picture.
Strengths:
- Deepest healthcare claims and procedure dataset on the market
- Technology install data for competitive intelligence
- Unmatched facility-level granularity
Weaknesses:
- TrustRadius reviewers give it 5.7/10
- Outdated UI and slow support - one reviewer reported a 3-week wait for a response
- Missing director-level contacts is a consistent complaint
- Aggressively constructed auto-renewal contracts that catch teams off guard
- Pricing runs $25K-$60K/year for small teams, $100K-$250K mid-market, $500K+ enterprise
Ocean.io
Ocean.io takes the opposite approach entirely. Instead of going deep on one vertical, it goes wide across general B2B. You feed it your best customers, and its AI finds similar companies across 55M company profiles and 330M data points. It uses waterfall enrichment across 16+ data sources with double email verification, including catch-all handling.

The credit economics matter here. Ocean.io charges $0.064/credit with a 9,000-credit minimum. A verified email costs 1 credit; a direct phone number costs 10.
Strengths:
- AI lookalike modeling finds accounts you'd never discover manually
- Waterfall enrichment across 16+ data sources
- Low entry price vs. enterprise platforms
Weaknesses:
- 3.1/5 on G2 from just 12 reviews, with 25% being 1-star
- A March 2026 review titled "Stolen data sets and yet still fails at accuracy" captures the frustration
- Export limitations and data quality complaints are common
- Zero healthcare-specific datasets - no claims, no procedure volumes, no provider affiliations
Here's the thing: if your deal sizes sit below $25K and you're selling into healthcare, neither of these tools makes sense. Definitive Healthcare is overkill for contact data, and Ocean.io simply doesn't have the vertical depth. You're better off with a verified contact database and a good filter set.
Which Tool Fits Your Use Case?
Healthcare facility intelligence and claims data - Definitive Healthcare is the clear pick. Also evaluate IQVIA and AcuityMD as alternatives in the same vertical.

AI-powered account discovery for general B2B - Ocean.io works, but we'd look at Apollo.io first. It has a 4.7/5 on G2 with 8,900+ reviews and a far more reliable dataset. If you’re building an outbound motion, pair it with proven sales prospecting techniques and a clean sales prospecting database.
Verified emails and direct dials for healthcare decision-makers without a $50K contract - this is where Prospeo fits. In our experience, teams that start with Definitive Healthcare for contact data alone end up overpaying for intelligence they never use. Prospeo covers 300M+ professional profiles with 98% email accuracy, 143M+ verified emails, and 125M+ verified mobile numbers at a 30% pickup rate, with data refreshed every 7 days. Pricing starts free at 75 emails plus 100 Chrome extension credits per month, with paid plans at roughly $0.01 per email. No annual contracts, no sales calls required. If you need to validate deliverability, use an AI email checker and follow a modern email deliverability guide.


Teams that buy Definitive Healthcare for contact data alone overpay for intelligence they never use. Prospeo gives you 30+ filters, 143M+ verified emails, and a 30% mobile pickup rate - starting with 75 free emails/month. No sales calls, no auto-renewal traps.
Stop paying $50K for contacts you can get for a penny each.
FAQ
Is Ocean.io good for healthcare sales prospecting?
No. Ocean.io has no healthcare-specific datasets - no claims data, procedure volumes, or provider affiliations. For healthcare prospecting, you need a vertical intelligence platform like Definitive Healthcare or a verified contact database that lets you filter by healthcare job titles and industries across millions of profiles.
How much does Definitive Healthcare cost per year?
Based on Vendr contract data, the median customer pays $50,150/year. Small teams typically spend $25,000-$60,000, mid-market deals run $100,000-$250,000, and enterprise agreements exceed $500,000. There's no free trial or self-serve signup.

Can I use Definitive Healthcare and Ocean.io together?
You can, but there's little overlap. Definitive Healthcare provides facility intelligence and claims data. Ocean.io finds lookalike companies in general B2B. If you need both healthcare intelligence and verified contact data, pairing Definitive Healthcare with a dedicated email and mobile finder is more practical - and far cheaper - than adding Ocean.io to the stack.
