Startups using Railway

ColdSire sells Google Workspace and Microsoft 365 mailboxes to cold-email agencies, set up automatically: domains, DNS, SPF, DKIM and DMARC, profiles, and connection to Instantly and Smartlead; $252k net revenue over the last 12 months. Runs with two contractors. Revenue has declined in 2026 with no sales effort, so a buyer with its own mailbox supply or a sales team gets the most from it.

Tools for any AI agent to access and manage your personal context

Stencil AI turns any photo, sketch or design into a clean, print-ready tattoo stencil in seconds. Built for professional tattoo artists: the AI understands line weights, shading and skin tones, so stencils transfer cleanly. Edit lines, add hatching, and export for printing. Available on iOS and Android, used by artists in 16+ languages.

Competitor to: Lovable, Replit, Base44, Anything.com, etc. $50k/mo, established product in hot industry, company is run by an officer. Plenty of potential. AI app/website builder (build by chatting to AI)

Perfect Little Business is an AI agency for expert-led businesses: coaches, consultants, authors and SaaS founders. We take companies from legacy systems to AI-native through three services: websites rebuilt on code you own, Authority Directories that make your expertise findable and citable in ChatGPT, Perplexity and Google AI, and AI operating systems that turn your IP into a working business brain. One 7-figure client went fully AI-native in under 90 days. Based on Hawai’i Island.

LinkPost is part of LinkEmpire, offered as a complete portfolio for USD 79,000: three LinkedIn SaaS products (LinkPost, LinkHub, LinkMagnet), the LinkEarn self-paced course and shared distribution assets. LinkPost provides AI writing, research, carousels, scheduling and analytics. The Stripe metrics on this page cover LinkPost only. Portfolio revenue, Nov 2025 to Oct 2026: USD 152,912.

Custom ChatGPT AI chatbot trained on your website and files. Integrated with 6000+ apps. No coding, on your website in minutes.

Not really looking to sell but if someone has good enough offer, I'm open to it.

Natively is a real-time AI copilot for interviews, meetings, and calls. It helps users answer questions, take notes, summarize conversations, and use personal context like resumes, job descriptions, and uploaded files during live sessions

SaaS subscription providing real-time positive expected value analysis for daily fantasy sports pick'em platforms. Subscribers access a live data dashboard with odds comparison tools and betting calculators.

Apogee helps media buyers and agencies bulk-launch ads across Meta, TikTok and Snapchat. Import creatives from Drive, Dropbox or Frame.io, automate naming and campaign setup, generate ad copy, reuse winning posts and transfer ads across platforms with Bridge. Track creative performance and automate Meta workflows with Autopilot. Manage multiple client accounts in one workspace, or launch and manage ads through AI assistants and the REST API.

InstaTrack lets you monitor any public Instagram account. See exactly who they follow and unfollow, in real time.

Remote jobs not found on LinkedIn or Indeed

App Store and Play Store screenshots, ASO copy, promo videos, app icons, mockups, localization, social graphics, and rank tracking in one launch workspace.

SaaS helping students and young professionals train for consulting case interviews.

A generator type of project with high profit margin. Solves real user problem for the fraction of the price compared to the gains they're getting. 100% organic growth and user acquisition. Strong domain profile of DR 21 and UR 10.

Create and embed beautiful AI chat widgets for your n8n workflows—no coding required. Users get a visual builder with live preview and natural language config (via MCP). Choose between two revenue models: standalone (one-time license, direct connection) or managed (credit-based with analytics, rate limits, and webhook protection). Runs on autopilot with automated billing, credit expiry system, and built-in security features.

Turn photos of your room into elegant interior designs.

Linkerflow is a CMS contextual internal linking tool. Building link between pages and maintaining link health with a weekly report. A

3 Years old app in the AI Dating Assistant Niche First Movers ASO Advantage 98% Profit Margins 0 Marketing; Passive & Recurring Revenue Growth Opportunities: Increasing Conversion Rates, Apple Ads, Marketing

(Currently at $3,000 MRR + $800+/month one-time payments) An API that lets you extract video summaries, transcripts, comments, and engagement metrics from YouTube, Shorts, TikTok, Instagram, Twitter, LinkedIn, and Facebook.

#1 Prediction Markets Research Platform

AI Chatbot That Creates Reels & Carousels In Seconds

Elofoot is an AI-powered football prediction platform that forecasts match outcomes, exact scores and scorers with market-leading accuracy. Built for the 2026 World Cup and beyond, it combines a polished web app and a native iOS app, recurring subscriptions (weekly to monthly), a Gold tier, interactive brackets and an AI chat. Already 20,000+ active fans and live international payments via Stripe & RevenueCat. A turnkey, revenue-generating SaaS ready to scale worldwide.

AI-POWERED OPERATING SYSTEM FOR OUTBOUND AGENCIES

Maxor Global develops deterministic AI and enterprise software for mission-critical and regulated operations. Its platform combines verifiable computation, AI orchestration, and audit-ready infrastructure, with flagship products including Heisen and MaxorConnect.

Available on the App Store, the app monetizes through premium access and credit purchases, with RevenueCat providing purchase analytics. Growth opportunities include user acquisition, conversion optimization, and product development.

Sports analytics platform for football, tennis and basketball bettors. Helping users better understand matches through data, advanced statistics and AI-powered analysis to make smarter betting decisions.

Create Stunning, Realistic AI Voices in Seconds.