Parallel similar-companies API (lookalikes), independently benchmarked
Parallel's similar-companies — or "lookalike" — API finds companies that resemble a seed account using an agentic research API; lookalikes via Entity Search. Here is how it actually scored on the independent Openbenchmarks lookalike benchmark, and the Parallel alternatives.
How Parallel scored
Same B2B seed companies as every other vendor; an LLM judge scores each returned company for relevance. See the full methodology and matrix →
| Metric | Parallel | Standing |
|---|---|---|
| Precision@10 (top-of-list quality) | 72.1% | #4 of 5 |
| Precision@50 | 60.8% | #2 of 5 |
| Precision@100 (long-list quality, headline) | 56.5% | #2 of 5 |
| Relevant companies returned | 1,356 | #2 of 5 |
| Cost per relevant company | — | — |
How Parallel finds similar companies
Parallel surfaces lookalikes via an agentic research API; lookalikes via Entity Search. On this benchmark every vendor receives the same compact input (company name + domain + a one-line description), which matches how an AI agent would query it. An autonomous agent can obtain a working API key on its own (email OTP). self-serve · email OTP
Parallel alternatives, benchmarked head-to-head
Every alternative below is scored on the same seeds with the same judge — so you can compare relevance directly instead of trusting vendor claims.
| Alternative | How it works | Precision@100 | |
|---|---|---|---|
| OpenFunnel | embeddings over a company index | 69.8% | Parallel vs OpenFunnel → |
| Ocean.io | AI-driven lookalike search across a global company graph | 48.6% | compare → |
| Exa | neural web search with a 'similar to this URL' endpoint | 25.8% | Parallel vs Exa → |
| PredictLeads | similar companies via shared tech / news / jobs co-signals | 19.4% | compare → |
Parallel scores 56.5% Precision@100 on the current cohort. There is no single overall winner — precision and cost favor different vendors, so pick on the axis that matches your workflow. See all vendors on the full benchmark → · What is a company lookalike API? →