Roofr is an all-in-one sales and operations platform built for roofing contractors. Founded by a third-generation roofer, it turns satellite imagery into accurate roof measurement reports in hours, then layers on instant estimates, branded proposals, a purpose-built CRM, material ordering, invoicing, and payments - so roofers can run the whole job, from first knock to final invoice, in one place. More than 12,000 roofing companies use it.
Banner is an enterprise capital expenditure (CapEx) management platform built for commercial real estate owners, operators, and developers. It replaces spreadsheets, email threads, and disconnected tools with one system that runs the full capital process - budgeting, bidding, bid leveling, cost tracking, invoicing, and lender draws. Banner says customers automate 80%+ of administrative work and save up to 10% on project costs, and the platform manages more than $10 billion in capital expenditure.
Housecall Pro is an all-in-one, cloud-based business management platform built for home service professionals - plumbers, electricians, HVAC techs, cleaners, and other tradespeople. It folds scheduling, dispatching, invoicing, payments, marketing, and customer management into a single mobile-first app, increasingly layered with AI tools that answer calls, book jobs, and answer accounting questions. Founded in 2013 and headquartered in Denver, the company serves tens of thousands of service businesses and has powered well over 100 million completed jobs.
Monograph is a San Francisco-based software company that builds cloud practice-operations software for architecture and engineering firms. Its platform replaces spreadsheets with real-time tools for project budgets, staffing, time tracking, invoicing and profitability forecasting, giving design professionals live financial visibility into their work. Founded in 2019 by three architectural designers, Monograph serves thousands of A/E firms and has helped manage hundreds of millions of dollars in projects.
Tabs is an AI-native revenue platform that automates the contract-to-cash cycle for B2B finance and accounting teams. Its AI agents read messy customer contracts, generate and send invoices, chase collections, reconcile payments, and handle revenue recognition - turning manual back-office work into software. Founded in 2023 in New York by operators from Latch, Tabs serves 200+ customers including Cursor and Statsig, and raised a $55M Series B led by Lightspeed in September 2025, bringing total funding past $91M.
Orb is a modern billing platform that helps software and AI companies turn raw product usage into revenue. Instead of being built around rigid subscriptions and contracts, Orb starts by ingesting real usage events and lets teams define any pricing logic on top - usage-based, seat-based, token-based, or hybrid. Founded by former Asana engineers who were tired of pricing changes taking months, Orb powers billing for companies like Vercel, Replit, Pinecone, and Perplexity.
B12 is a New York-based software company that builds an AI-powered, all-in-one platform for professional service providers - lawyers, accountants, consultants, and other small firms - to get online and run their businesses. Its AI generates a complete, industry-specific website in about 60 seconds, then pairs that automation with on-platform human designers, copywriters, and SEO specialists through a system the company calls Orchestra. Beyond websites, B12 bundles scheduling, intake forms, e-signatures, invoicing, payments, email marketing, and a client contact manager into one subscription.
Billtrust is a cloud-based fintech that automates the entire order-to-cash and invoice-to-cash cycle for B2B businesses - credit decisioning, online ordering, invoice delivery, payments, cash application, and collections. Founded in 2001 by Flint Lane, it went public via SPAC in 2021 (Nasdaq: BTRS) and was taken private by EQT in late 2022 for about $1.7 billion. Its Business Payments Network connects buyers, suppliers, and banks to move trillions in B2B payments with far less manual work.
Xero is a cloud-based accounting software company founded in Wellington, New Zealand in 2006. It serves more than 4.4 million subscribers - mostly small businesses and the accountants and bookkeepers who advise them - across New Zealand, Australia, the UK, the US and beyond. Xero connects bank feeds, invoicing, payroll, expense tracking and a marketplace of thousands of third-party apps into a single real-time platform, and reported NZ$2.1 billion in revenue in FY25.
Apptivo is a cloud-based, all-in-one business management platform founded in 2009 and headquartered in Fremont, California. The company offers 65+ integrated business applications — from CRM and project management to invoicing and field service — under a single affordable subscription starting at $15/user/month. Bootstrapped and self-funded, Apptivo has grown to serve 200,000+ customers across 193 countries, reaching approximately $75M in annual revenue by 2025. Its core value proposition: enterprise-grade software at small-business prices, with 24/7 human customer support at every tier.
HoneyBook is an AI-powered business management platform built for independent service professionals - photographers, event planners, consultants, and creative freelancers. Founded in 2013 in San Francisco with roots in Tel Aviv, the platform combines CRM, contracts, invoicing, payments, scheduling, and workflow automation into a single clientflow hub. With $498M in total funding, a $2.4B valuation, $140M ARR, and more than $12 billion in payments processed, HoneyBook has become the dominant platform for the growing independent economy - helping over 100,000 small business owners run client relationships from first inquiry to final payment without switching between a dozen tools.
Digits is an AI-native accounting platform building the world's first Agentic General Ledger - software that autonomously categorizes transactions, reconciles accounts, sends invoices, pays bills, and produces real-time financials for small and mid-sized businesses. Founded in 2018 by Crashlytics alumni Jeff Seibert and Wayne Chang, it claims to automate up to 95% of bookkeeping work.

Anh-Tho Chuong is the co-founder and CEO of Lago, the open-source billing and invoicing platform trusted by companies like Mistral AI, Groq, PayPal, and Synthesia. Born in Réunion to a Vietnamese father who fled the war, she built her career through McKinsey consulting, a formative run as VP Growth (employee #1) at Qonto, and a pivot inside Y Combinator that turned a failed data-tools idea into one of Europe's fastest-growing developer infrastructure plays. Lago has raised $44M in total funding, amassed 9,000+ GitHub stars, and is reshaping how SaaS companies handle complex pricing without handing control to Stripe.