plumbing
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Sila Services
Sila Services is assembling a regional home-repair network without sanding the names off the trucks. Its bet is that the best way to scale HVAC, plumbing and electrical work is to keep local trust out front - and put recruiting, technology and capital behind it.
Hiller Plumbing, Heating, Cooling & Electrical
Hiller started with $500, one truck and a promise to leave the work area clean. Thirty-six years later, its real product is bigger than plumbing or HVAC: a repeatable system for making an anxious homeowner feel in control.
Zoeller Company
Zoeller built an 87-year business around a machine most people notice only when it stops. Its edge is not novelty for novelty's sake, but obsessive testing, contractor trust and a family portfolio that follows water almost everywhere it needs to go.
Stellar
Stellar is a Dallas-based, technology-driven marketplace that connects property managers and homeowners with vetted local tradespeople to get home maintenance and repairs done right. Founded in 2016 as IFM Restoration and rebranded to Stellar in 2022, the company pairs software, AI and a network of thousands of contractors to resolve maintenance at scale, initially for the single-family rental industry and increasingly for homeowners across the U.S. Sun Belt. It serves major single-family rental operators and books repair appointments for homeowners across 30-plus markets.
Vigilante Plumbing, Heating and Air Conditioning
Vigilante Plumbing, Heating and Air Conditioning is a family-owned Brooklyn contractor that has served New York City since 1927. Now in its third and fourth generation under the Vigilante family, the company handles residential and commercial plumbing, heating, air conditioning, drain and sewer work, and fire-protection systems across the five boroughs, built on flat-rate pricing, licensed master plumbers, and background-checked technicians.
Evan Brown
Evan Brown is the CEO and co-founder of Rebar, a New York vertical-AI company building an operating system for the HVAC, electrical, and plumbing trades. Rebar's platform reads blueprints and spec books, pulls out tens of thousands of data points per project, and turns estimating and quoting work that once took days into a task of minutes. Brown grew up in his uncle's HVAC supplier office and later spent years as an estimator and sales engineer before starting Rebar in October 2024 with Andrew Schwartz. In March 2026 the company closed a $14M Series A led by Prudence.
Prefix
Prefix is a New York-based facility management platform for multi-site restaurant and retail operators. It acts as the connective layer between brands and local service technicians - coordinating on-demand and preventive repairs across HVAC, refrigeration, plumbing and electrical, and managing the full job lifecycle from request to invoice. With AI-powered vendor management and 24/7 support, Prefix says it delivers roughly 3x efficiency gains and 15%+ cost savings for the nearly 2,000 locations it serves.
Ruchir Shah
Ruchir Shah is the founder and CEO of SkillCat, a mobile-first training platform that has taught more than 300,000 people to enter skilled trades like HVAC, plumbing, electrical, and appliance repair. A Rice-trained energy engineer with a Stanford MBA, he started building animated industrial simulations after researching the BP oil spill and concluding that bad training kills. His first company, LearnToDrill, trained 25,000 oil and gas workers for clients like Halliburton and BP. When COVID threw skilled workers out of jobs while contractors begged for help, Shah pivoted to SkillCat to bridge that gap with simulation-based, $10-a-month trade education. He also runs the GRIT Foundation to introduce trades careers to underserved youth, and once spent a summer doing stand-up comedy in New York.
Stratus
Stratus is a cloud-based BIM-to-fabrication platform built for MEP (mechanical, electrical, plumbing) contractors. It connects the digital model - Revit, AutoCAD and Autodesk Fabrication - to the prefab shop and the field, handling spooling, smart labeling, bend sheets, weld maps, material tracking and real-time productivity metrics so trade contractors can move from design to installed pipe, duct and conduit with less waste and fewer manual handoffs. Developed by GTP Software, Inc. (formerly GTP Services), Stratus serves large mechanical and sheet-metal contractors across North America and raised a $32M Series B in 2025.
Housecall Pro
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.
Avoca
Avoca is a New York-based AI platform for America's services economy. It builds AI agents that answer calls, texts, chats and emails, book jobs, follow up on estimates and coach human reps for HVAC, plumbing, electrical, roofing, pest control and other trades. Founded in 2022 by Tyson Chen and Apurva Shrivastava after a chance encounter with a Dallas HVAC company, Avoca pivoted from restaurants to the trades when it realized a missed call could mean losing a $30,000 install. In April 2026 it raised $125M+ across Seed, Series A and Series B at a $1 billion valuation, and is on track to book $1 billion in jobs in a single year.
Jake Olsen
Jake Olsen, P.E. is the CEO of Stratus, the leading cloud software platform for MEP (mechanical, electrical, and plumbing) contractors, helping hundreds of firms digitize workflows from BIM design through fabrication to field installation. A serial entrepreneur with over 20 years in construction technology, Olsen previously co-founded DADO - a construction document management startup that was acquired by Stanley Black & Decker - and also built Hangerworks, DEWALT Design Assist, and Powercalc Anchor Design. He steered Stratus to a $32 million Series B funding round in January 2025 led by Radian Capital, positioning the company as the connective tissue between the design table, fabrication shop, and job site in the evolving era of data-driven MEP contracting.