ats
(13)
Weekday
Weekday is a YC-backed (W21) AI recruiting platform that runs automated outbound sourcing campaigns to help technology companies hire software engineers. It pairs a database of 250M+ people across the US and India with AI-written outreach and managed multi-channel follow-ups (email, WhatsApp, phone), delivering interested, pre-vetted candidates ready to interview. Founded in 2021 by Amit Singh, Anubhav Malik and Chetan Dalal, the company started with a crowdsourced referral model and evolved into a full AI sourcing engine.
Moka
Moka (MokaHR) is an AI-native HR SaaS company founded in 2015 in Beijing that builds recruiting and human-capital-management software for mid-market and enterprise employers. Its platform combines an applicant tracking system, talent CRM, recruitment automation, analytics, and the Moka Eva AI assistant to speed up hiring and HR operations. Moka reached unicorn status after a $100M Series C led by Tiger Global in 2021 and serves 2,000-3,000+ brands, including roughly 30% of the Fortune 500, with a growing presence in Singapore and Southeast Asia.
Greenhouse Software
Greenhouse Software is a New York-based hiring platform that helps companies run structured, data-driven recruiting. Founded in 2012 by Daniel Chait and Jon Stross, it centralizes applicant tracking, interview scorecards, candidate sourcing, onboarding and reporting into one system used by more than 7,500 organizations. Rather than pushing automation for its own sake, Greenhouse pitches 'structured hiring' - a consistent, comparable process for evaluating candidates - and has layered in AI tools and fraud detection to keep that process reliable as application volumes surge.
Kombo
Kombo is a unified API that lets B2B software companies connect to hundreds of HR, payroll, recruiting (ATS), and learning systems through a single integration. Instead of building and maintaining separate connectors to systems like Personio, BambooHR, Workday, Greenhouse, and Paychex, customers integrate Kombo once and gain access to a normalized data model and authentication layer across 300+ HR and ATS tools. Founded in 2022 and based in Berlin and New York, Kombo positions itself as the infrastructure layer for people data - from hire to retire.
Ohanae
Ohanae is a New York-based fintech company building regulated market infrastructure for tokenized securities. Its Web3-powered platform combines asset tokenization, a US-dollar-pegged stablecoin (Ohanae Coin), self-sovereign identity, and an alternative trading system with automated market maker technology to handle the full lifecycle of digital asset securities - from issuance and Regulation A+ crowdfunding through custody, clearing, settlement, and secondary trading. Founded by Greg Hauw, the company operates FINRA-registered broker-dealer Ohanae Securities LLC and targets the multi-trillion-dollar OTC securities market.
OpenYield
OpenYield is a New York-based fintech operating an automated, all-to-all bond marketplace that brings an equity-like trading experience to fixed income. A FINRA-registered broker-dealer and SEC-registered alternative trading system (ATS), it offers firm, executable quotes with no minimum trade sizes across corporate bonds, municipal bonds and U.S. Treasurys, connected to brokerages, advisors, asset managers and market makers through API-first infrastructure.
Provable Markets
Provable Markets is a New York-based financial technology company modernizing the securities lending and securities finance markets. Through Aurora, its SEC-registered, vertically integrated Alternative Trading System, it combines encrypted real-time order matching, automated post-trade lifecycle management, and connectivity to central clearing (NSCC CCP) and settlement (DTC) infrastructure. Founded in 2020 by CEO Matthew Cohen and rooted in cryptographic research on secure multi-party computation, the company aims to replace the instant-message-and-spreadsheet workflows of a roughly trillion-dollar market with cloud-native, low-latency, transparent trading.
StackOne
StackOne is a London-based integration platform that gives B2B SaaS companies and AI agent builders a single unified API to connect to hundreds of enterprise systems - from HR and CRM to ticketing, messaging and identity. Combining a proprietary tool-calling LLM with a real-time, privacy-first engine, it offers 200+ pre-built connectors and thousands of ready-made actions so agents can reliably and securely take actions inside the software businesses already use. Founded in 2023 by Romain Sestier and Guillaume Lebedel, the company raised a $20M Series A led by GV (Google Ventures) in May 2025 and has surpassed 1 billion API calls.
SupportFinity
SupportFinity is a San Francisco AI-native recruitment platform that replaces the tangle of separate sourcing, ATS, and assessment tools with one system. It searches a database of roughly 2.1-2.4 billion candidate profiles, auto-generates job descriptions, screens and assesses candidates with proprietary AI agents, benchmarks salaries across 180 countries, and offers a recruitment-as-a-service network of 2,000+ recruiters. The company says it cuts time-to-hire and cost by up to 90% and serves 700+ companies worldwide.
Ashby
Ashby is an all-in-one recruiting platform that bundles applicant tracking, sourcing, scheduling, CRM, and analytics into a single AI-powered system used by companies like OpenAI, Shopify, Notion, Snowflake, and Ramp.
Merge
Merge builds the connective infrastructure for modern SaaS and AI: one unified API that lets a product offer hundreds of HRIS, ATS, CRM, ticketing, and accounting integrations - and a newer Agent Handler that gives AI agents secure, observable access to thousands of third-party tools.
Workstream
Workstream is an HR, hiring and payroll platform built for the deskless economy - the 80 million Americans who clock in by the hour at restaurants, gyms, car washes and franchises. Founded in 2017 by three immigrants in San Francisco, it uses texting, voice AI and automation to cut time-to-hire by roughly 70% for chains like Burger King, Jimmy John's and Chick-fil-A franchisees.
Simplify
Simplify is a San Francisco AI startup building a single home for the modern job hunt - a browser extension that autofills applications, an AI resume builder, an ATS-style scorer, and a tracker that replaces the spreadsheet. Founded in 2020 by three college students during the pandemic, it now claims more than 1.5 million job seekers and 200 million applications submitted through the platform.