# Y Combinator Companies Scraper (`obsidian937/yc-companies-scraper`) Actor Extract Y Combinator companies: name, website, batch, industry, team size, status, stage, region, hiring status and description. No proxy needed. Filter by batch, industry, region or monitor new companies in delta mode. - **URL**: https://apify.com/obsidian937/yc-companies-scraper.md - **Developed by:** [Obsidian IT Consulting SRL](https://apify.com/obsidian937) (community) - **Categories:** Developer tools, Lead generation, Jobs - **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, NaN bookmarks - **User rating**: No ratings yet ## Pricing from $3.00 / 1,000 results This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events. Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-event ## What's an Apify Actor? Actors are a software tools running on the Apify platform, for all kinds of web data extraction and automation use cases. In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours, and optionally produces a well-defined JSON output, datasets with results, or files in key-value store. In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server. Actors are written with capital "A". ## How to integrate an Actor? If asked about integration, you help developers integrate Actors into their projects. You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready. The best way to integrate Actors is as follows. In JavaScript/TypeScript projects, use official [JavaScript/TypeScript client](https://docs.apify.com/api/client/js.md): ```bash npm install apify-client ``` In Python projects, use official [Python client library](https://docs.apify.com/api/client/python.md): ```bash pip install apify-client ``` In shell scripts, use [Apify CLI](https://docs.apify.com/cli/docs.md): ````bash # MacOS / Linux curl -fsSL https://apify.com/install-cli.sh | bash # Windows irm https://apify.com/install-cli.ps1 | iex ```bash In AI frameworks, you might use the [Apify MCP server](https://docs.apify.com/platform/integrations/mcp.md). If your project is in a different language, use the [REST API](https://docs.apify.com/api/v2.md). For usage examples, see the [API](#api) section below. For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt). # README ## Y Combinator Companies Scraper Extract the full [Y Combinator](https://www.ycombinator.com/companies) company directory — ~5,900 startups with batch, industry, team size, status, region, hiring status and descriptions. No login, no proxy, no API key required. ### What you get | Field | Description | |-------|-------------| | `name` | Company name | | `website` | Company website URL | | `oneLiner` | One-line pitch | | `longDescription` | Full company description | | `batch` | YC batch (e.g. "Summer 2024", "Winter 2009") | | `status` | Active, Acquired, Public, or Inactive | | `stage` | Company stage | | `teamSize` | Number of employees | | `industry` | Top-level industry (B2B, Consumer, Fintech, Healthcare…) | | `subindustry` | More specific sub-industry | | `industries` | All industry tags | | `regions` | Regions (e.g. "United States of America", "Europe", "Remote") | | `allLocations` | Office location string | | `isHiring` | Whether the company has open roles | | `topCompany` | Whether YC flags it as a top company | | `nonprofit` | Whether it is a nonprofit | | `tags` | Free-form tags | | `launchedAt` | When the company was added to the YC directory | | `ycUrl` | Link to the YC company page | | `logoUrl` | Company logo image URL | ### Use cases - **VC / deal sourcing** — build a pipeline of YC companies filtered by batch, stage and industry - **Competitive intelligence** — map every company in your category and track team-size growth - **Recruiting** — find YC startups that are actively hiring (`isHiring`) - **Sales prospecting** — export thousands of funded startups with websites for outbound - **Market research** — analyze YC batch composition by industry, region and status over time ### Filters ```json { "batch": ["Summer 2024", "Winter 2024"], "industry": ["B2B", "Fintech"], "status": ["Active"], "regions": ["United States of America"], "minTeamSize": 10, "isHiring": true, "maxItems": 500 } ```` Leave everything empty and set `maxItems: 0` to extract the entire directory. ### Monitoring mode (delta) Turn the scraper into a recurring **new-company monitor**. Set `deltaMode: true`, schedule it, and add a webhook — each run returns **only the companies added since your last run**. ```json { "deltaMode": true, "maxItems": 200 } ``` The first run sets a baseline; every run after returns only new additions (often zero), so you only pay for real signal. State is stored per account. ### Example output ```json { "name": "Airbnb", "website": "http://airbnb.com", "oneLiner": "Book accommodations around the world.", "batch": "Winter 2009", "status": "Public", "teamSize": 6132, "industry": "Consumer", "regions": ["United States of America"], "allLocations": "San Francisco, CA, USA", "isHiring": false, "ycUrl": "https://www.ycombinator.com/companies/airbnb", "launchedAt": "2009-01-15T00:00:00.000Z" } ``` ### Options | Option | Type | Default | Description | |--------|------|---------|-------------| | `searchQuery` | string | `""` | Full-text search over name, one-liner, description | | `batch` | string\[] | `[]` | Filter by YC batch (OR) | | `industry` | string\[] | `[]` | Filter by industry (OR) | | `status` | string\[] | `[]` | Active / Acquired / Public / Inactive (OR) | | `regions` | string\[] | `[]` | Filter by region (OR) | | `minTeamSize` | integer | `0` | Minimum employees | | `isHiring` | boolean | `false` | Only companies with open roles | | `launchedAfter` | string | `""` | Only companies added after this date | | `deltaMode` | boolean | `false` | Monitor mode — only new companies since last run | | `maxItems` | integer | `100` | Max companies (0 = full directory) | | `delayMs` | integer | `200` | Delay between API pages | ### Pricing **$3.00 per 1,000 companies** ($0.003/company). No proxy costs — the YC directory is public. ### FAQ **Does it require login or an API key?** No. The YC company directory is fully public. **How many companies are there?** Around 5,900 across all batches. **Can I get the whole directory in one run?** Yes — set `maxItems: 0`. The scraper windows past the API's 1,000-result page cap automatically. **Is the data official?** It comes from YC's own public company directory, the same data shown on ycombinator.com/companies. # Actor input Schema ## `searchQuery` (type: `string`): Full-text search over company name, one-liner and description. Leave empty to browse all YC companies. ## `batch` (type: `array`): Only return companies from these YC batches (OR). Examples: 'Summer 2024', 'Winter 2024', 'Spring 2026'. ## `industry` (type: `array`): Only return companies in these industries (OR). Values: B2B, Consumer, Healthcare, Fintech, Industrials, Real Estate and Construction, Education, Government. ## `status` (type: `array`): Only return companies with these statuses (OR). Values: Active, Acquired, Public, Inactive. ## `regions` (type: `array`): Only return companies in these regions (OR). Examples: 'United States of America', 'Europe', 'South Asia', 'Remote'. ## `minTeamSize` (type: `integer`): Only return companies with at least this many employees. 0 = no filter. ## `isHiring` (type: `boolean`): Only return companies that currently have open roles on Work at a Startup. ## `launchedAfter` (type: `string`): Only return companies launched on YC's directory after this date (YYYY-MM-DD or ISO). Great for catching new additions. Leave empty for no date filter. ## `deltaMode` (type: `boolean`): Run as a recurring monitor: remembers the newest company seen and on each run only returns companies added since the previous run. Ideal on a schedule + webhook. First run sets the baseline (respects Max companies). Overrides 'Launched after'. ## `maxItems` (type: `integer`): Maximum number of companies to extract. 0 = no limit (full result set, ~5900 companies). ## `delayMs` (type: `integer`): Milliseconds to wait between API pages. Increase if you hit rate limits. ## Actor input object example ```json { "searchQuery": "developer tools", "minTeamSize": 0, "isHiring": false, "launchedAfter": "2026-01-01", "deltaMode": false, "maxItems": 100, "delayMs": 200 } ``` # API You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup. ## JavaScript example ```javascript import { ApifyClient } from 'apify-client'; // Initialize the ApifyClient with your Apify API token // Replace the '' with your token const client = new ApifyClient({ token: '', }); // Prepare Actor input const input = {}; // Run the Actor and wait for it to finish const run = await client.actor("obsidian937/yc-companies-scraper").call(input); // Fetch and print Actor results from the run's dataset (if any) console.log('Results from dataset'); console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`); const { items } = await client.dataset(run.defaultDatasetId).listItems(); items.forEach((item) => { console.dir(item); }); // 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs ``` ## Python example ```python from apify_client import ApifyClient # Initialize the ApifyClient with your Apify API token # Replace '' with your token. client = ApifyClient("") # Prepare the Actor input run_input = {} # Run the Actor and wait for it to finish run = client.actor("obsidian937/yc-companies-scraper").call(run_input=run_input) # Fetch and print Actor results from the run's dataset (if there are any) print("💾 Check your data here: https://console.apify.com/storage/datasets/" + run["defaultDatasetId"]) for item in client.dataset(run["defaultDatasetId"]).iterate_items(): print(item) # 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start ``` ## CLI example ```bash echo '{}' | apify call obsidian937/yc-companies-scraper --silent --output-dataset ``` ## MCP server setup ```json { "mcpServers": { "apify": { "command": "npx", "args": [ "mcp-remote", "https://mcp.apify.com/?tools=obsidian937/yc-companies-scraper", "--header", "Authorization: Bearer " ] } } } ``` ## OpenAPI specification ```json { "openapi": "3.0.1", "info": { "title": "Y Combinator Companies Scraper", "description": "Extract Y Combinator companies: name, website, batch, industry, team size, status, stage, region, hiring status and description. No proxy needed. Filter by batch, industry, region or monitor new companies in delta mode.", "version": "1.0", "x-build-id": "smZVi5DhTZILlrEWL" }, "servers": [ { "url": "https://api.apify.com/v2" } ], "paths": { "/acts/obsidian937~yc-companies-scraper/run-sync-get-dataset-items": { "post": { "operationId": "run-sync-get-dataset-items-obsidian937-yc-companies-scraper", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } }, "/acts/obsidian937~yc-companies-scraper/runs": { "post": { "operationId": "runs-sync-obsidian937-yc-companies-scraper", "x-openai-isConsequential": false, "summary": "Executes an Actor and returns information about the initiated run in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/runsResponseSchema" } } } } } } }, "/acts/obsidian937~yc-companies-scraper/run-sync": { "post": { "operationId": "run-sync-obsidian937-yc-companies-scraper", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } } }, "components": { "schemas": { "inputSchema": { "type": "object", "properties": { "searchQuery": { "title": "Search query", "type": "string", "description": "Full-text search over company name, one-liner and description. Leave empty to browse all YC companies." }, "batch": { "title": "Filter by batch", "type": "array", "description": "Only return companies from these YC batches (OR). Examples: 'Summer 2024', 'Winter 2024', 'Spring 2026'.", "items": { "type": "string" } }, "industry": { "title": "Filter by industry", "type": "array", "description": "Only return companies in these industries (OR). Values: B2B, Consumer, Healthcare, Fintech, Industrials, Real Estate and Construction, Education, Government.", "items": { "type": "string" } }, "status": { "title": "Filter by status", "type": "array", "description": "Only return companies with these statuses (OR). Values: Active, Acquired, Public, Inactive.", "items": { "type": "string" } }, "regions": { "title": "Filter by region", "type": "array", "description": "Only return companies in these regions (OR). Examples: 'United States of America', 'Europe', 'South Asia', 'Remote'.", "items": { "type": "string" } }, "minTeamSize": { "title": "Minimum team size", "minimum": 0, "type": "integer", "description": "Only return companies with at least this many employees. 0 = no filter.", "default": 0 }, "isHiring": { "title": "Only companies hiring", "type": "boolean", "description": "Only return companies that currently have open roles on Work at a Startup.", "default": false }, "launchedAfter": { "title": "Launched after (date)", "type": "string", "description": "Only return companies launched on YC's directory after this date (YYYY-MM-DD or ISO). Great for catching new additions. Leave empty for no date filter." }, "deltaMode": { "title": "Delta mode (monitor new companies)", "type": "boolean", "description": "Run as a recurring monitor: remembers the newest company seen and on each run only returns companies added since the previous run. Ideal on a schedule + webhook. First run sets the baseline (respects Max companies). Overrides 'Launched after'.", "default": false }, "maxItems": { "title": "Max companies to scrape", "minimum": 0, "type": "integer", "description": "Maximum number of companies to extract. 0 = no limit (full result set, ~5900 companies).", "default": 100 }, "delayMs": { "title": "Delay between requests (ms)", "minimum": 0, "type": "integer", "description": "Milliseconds to wait between API pages. Increase if you hit rate limits.", "default": 200 } } }, "runsResponseSchema": { "type": "object", "properties": { "data": { "type": "object", "properties": { "id": { "type": "string" }, "actId": { "type": "string" }, "userId": { "type": "string" }, "startedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "finishedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "status": { "type": "string", "example": "READY" }, "meta": { "type": "object", "properties": { "origin": { "type": "string", "example": "API" }, "userAgent": { "type": "string" } } }, "stats": { "type": "object", "properties": { "inputBodyLen": { "type": "integer", "example": 2000 }, "rebootCount": { "type": "integer", "example": 0 }, "restartCount": { "type": "integer", "example": 0 }, "resurrectCount": { "type": "integer", "example": 0 }, "computeUnits": { "type": "integer", "example": 0 } } }, "options": { "type": "object", "properties": { "build": { "type": "string", "example": "latest" }, "timeoutSecs": { "type": "integer", "example": 300 }, "memoryMbytes": { "type": "integer", "example": 1024 }, "diskMbytes": { "type": "integer", "example": 2048 } } }, "buildId": { "type": "string" }, "defaultKeyValueStoreId": { "type": "string" }, "defaultDatasetId": { "type": "string" }, "defaultRequestQueueId": { "type": "string" }, "buildNumber": { "type": "string", "example": "1.0.0" }, "containerUrl": { "type": "string" }, "usage": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "integer", "example": 1 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } }, "usageTotalUsd": { "type": "number", "example": 0.00005 }, "usageUsd": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "number", "example": 0.00005 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } } } } } } } } } ```