{"company":{"id":454381,"name":"Ninjatrader","domain":"ninjatrader.com","url":"https://alion.io/company/ninjatrader-2"},"answer":"As of Nov 15, 2026, Alion lists 10 companies most like Ninjatrader: Forge Global, Tradeify, Interactive Brokers, Alpaca, Topstep, Trumid, StoneX Group, Robinhood, Clear Street and flatexDEGIRO.","highlights":["Ninjatrader itself has 16 open roles on Alion.","Of them, Robinhood is hiring the most, with 156 open roles.","Clear Street has raised the most venture funding on record: $489.4M.","Open roles at Robinhood fell the most: from 169 on Oct 12, 2026 to 156 now."],"as_of":"2026-11-15","cite":"Alion, \"Ninjatrader competitors and alternatives: 10 similar companies compared on hiring and funding\", as of Nov 15, 2026. https://alion.io/company/ninjatrader-2/competitors","indexable":true,"target":{"name":"Ninjatrader","url":"https://alion.io/company/ninjatrader-2","domain":"ninjatrader.com","open_roles":16,"open_roles_change":null,"funding":{"total_raised_usd":null,"last_round":null,"last_round_usd":null,"last_round_date":null,"lead_investors":[]},"size_band":"201-500","headquarters":{"city":"Chicago","country":"US"},"technologies":["GCP","CI/CD","Python"],"hiring_countries":["US"],"similarity":null},"competitors":[{"name":"Forge Global","url":"https://alion.io/company/forge-global","domain":"forgeglobal.com","open_roles":0,"open_roles_change":null,"funding":{"total_raised_usd":null,"last_round":null,"last_round_usd":null,"last_round_date":null,"lead_investors":[]},"size_band":"201-500","headquarters":{"city":"San Francisco","country":"US"},"technologies":["CI/CD","C#","Apache Kafka"],"hiring_countries":[],"similarity":{"score":18.9,"shared_segments":["Online Brokerage & Trading Platforms"],"shared_technologies":["Python","Go","JavaScript","TypeScript","SQL"],"same_hq_country":true}},{"name":"Tradeify","url":"https://alion.io/company/tradeify","domain":"tradeify.in","open_roles":6,"open_roles_change":null,"funding":{"total_raised_usd":null,"last_round":null,"last_round_usd":null,"last_round_date":null,"lead_investors":[]},"size_band":"51-200","headquarters":{"city":"Boca Raton","country":"US"},"technologies":["JavaScript","Next.js","React.js"],"hiring_countries":["US"],"similarity":{"score":18.4,"shared_segments":["Online Brokerage & Trading Platforms"],"shared_technologies":["Python","Go","JavaScript","TypeScript","SQL"],"same_hq_country":true}},{"name":"Interactive Brokers","url":"https://alion.io/company/interactive-brokers","domain":"interactivebrokers.com","open_roles":120,"open_roles_change":null,"funding":{"total_raised_usd":null,"last_round":null,"last_round_usd":null,"last_round_date":null,"lead_investors":[]},"size_band":"1001-5000","headquarters":{"city":"Greenwich","country":"US"},"technologies":["Python","Java","SQL"],"hiring_countries":["US","IN","HK"],"similarity":{"score":18.05,"shared_segments":["Online Brokerage & Trading Platforms"],"shared_technologies":["Python","Go","JavaScript","TypeScript","SQL"],"same_hq_country":true}},{"name":"Alpaca","url":"https://alion.io/company/alpaca","domain":"alpaca.markets","open_roles":64,"open_roles_change":{"since":"2026-10-12","from":68,"to":64,"pct":-6},"funding":{"total_raised_usd":null,"last_round":null,"last_round_usd":null,"last_round_date":null,"lead_investors":[]},"size_band":"51-200","headquarters":{"city":"San Mateo","country":"US"},"technologies":["Go","Kubernetes","GCP"],"hiring_countries":["JP","CA","HK"],"similarity":{"score":17.6,"shared_segments":["Online Brokerage & Trading Platforms"],"shared_technologies":["Python","Go","JavaScript","TypeScript","SQL"],"same_hq_country":true}},{"name":"Topstep","url":"https://alion.io/company/topstep-2","domain":"topstep.com","open_roles":17,"open_roles_change":null,"funding":{"total_raised_usd":null,"last_round":null,"last_round_usd":null,"last_round_date":null,"lead_investors":[]},"size_band":"51-200","headquarters":{"city":"Chicago","country":"US"},"technologies":["TypeScript","JavaScript","React.js"],"hiring_countries":["US","CA"],"similarity":{"score":16.8,"shared_segments":["Online Brokerage & Trading Platforms"],"shared_technologies":["JavaScript","TypeScript","SQL","Rest API","Terraform"],"same_hq_country":true}},{"name":"Trumid","url":"https://alion.io/company/trumid","domain":"trumid.com","open_roles":5,"open_roles_change":null,"funding":{"total_raised_usd":484155024,"last_round":"venture","last_round_usd":75000000,"last_round_date":"2020-11-27","lead_investors":[]},"size_band":"51-200","headquarters":{"city":"New York","country":"US"},"technologies":["Kubernetes","AWS","Prometheus"],"hiring_countries":["US"],"similarity":{"score":16.8,"shared_segments":["Online Brokerage & Trading Platforms"],"shared_technologies":["Python","SQL","Scala","gRPC","Terraform"],"same_hq_country":true}},{"name":"StoneX Group","url":"https://alion.io/company/stonex","domain":"stonex.com","open_roles":86,"open_roles_change":null,"funding":{"total_raised_usd":null,"last_round":null,"last_round_usd":null,"last_round_date":null,"lead_investors":[]},"size_band":"1001-5000","headquarters":{"city":"New York","country":"US"},"technologies":["Azure","SQL","CI/CD"],"hiring_countries":["IN","CO","BR"],"similarity":{"score":16.45,"shared_segments":["Online Brokerage & Trading Platforms"],"shared_technologies":["Python","Go","JavaScript","TypeScript","SQL"],"same_hq_country":true}},{"name":"Robinhood","url":"https://alion.io/company/robinhood","domain":"robinhood.com","open_roles":156,"open_roles_change":{"since":"2026-10-12","from":169,"to":156,"pct":-8},"funding":{"total_raised_usd":null,"last_round":null,"last_round_usd":null,"last_round_date":null,"lead_investors":[]},"size_band":"1001-5000","headquarters":{"city":"Menlo Park","country":"US"},"technologies":["Python","Go","Kubernetes"],"hiring_countries":["US","CA","GB"],"similarity":{"score":16.18,"shared_segments":["Online Brokerage & Trading Platforms"],"shared_technologies":["Python","Go","JavaScript","TypeScript","SQL"],"same_hq_country":true}},{"name":"Clear Street","url":"https://alion.io/company/clearstreet","domain":"clearstreet.io","open_roles":38,"open_roles_change":null,"funding":{"total_raised_usd":489435000,"last_round":"venture","last_round_usd":19435000,"last_round_date":"2025-11-24","lead_investors":[]},"size_band":"501-1000","headquarters":{"city":"New York","country":"US"},"technologies":["Kubernetes","Python","PostgreSQL"],"hiring_countries":["US","SE","GB"],"similarity":{"score":15.9,"shared_segments":["Online Brokerage & Trading Platforms"],"shared_technologies":["Python","Go","JavaScript","TypeScript","SQL"],"same_hq_country":true}},{"name":"flatexDEGIRO","url":"https://alion.io/company/flatexdegiro","domain":"flatexdegiro.com","open_roles":28,"open_roles_change":null,"funding":{"total_raised_usd":null,"last_round":null,"last_round_usd":null,"last_round_date":null,"lead_investors":[]},"size_band":"501-1000","headquarters":{"city":"Frankfurt am Main","country":"DE"},"technologies":["SQL","Python","CI/CD"],"hiring_countries":["DE","NL","BG"],"similarity":{"score":15.6,"shared_segments":["Online Brokerage & Trading Platforms"],"shared_technologies":["Python","Go","JavaScript","TypeScript","SQL"],"same_hq_country":false}}],"method":"Ranked by Alion's similar-companies engine (the MCP tool similar_companies): shared industry segments and the overlap of the two segment sets, technologies named in both companies' job postings, the same headquarters country, a size band near it. Open roles are the visible postings on Alion today; their change is shown only for boards that state posting dates.","html_url":"https://alion.io/company/ninjatrader-2/competitors","json_url":"https://alion.io/company/ninjatrader-2/competitors.json","license":"CC BY-SA 4.0","meta":{"source":"Alion","built_at":"2026-11-15T03:04:16Z","generated_at":"2026-11-15T20:22:33Z"}}