Five years ago, compiling a list of the rising stars on the local tech startup scene was a fairly straight-forward task. Investment experts and educators generally agreed on the most promising among them, possibly because there were fewer in the field to choose from. But those days are gone.

The technology startup scene in Pittsburgh has grown considerably since then. The city currently ranks sixth in the country in the number of tech companies funded by venture capital (in the third quarter of 2015 year to date) located here (60 in 2015), well above the average benchmark (46), just behind Austin (81) and ahead of Denver (52) Baltimore (33), and Raleigh-Durham (33), according to Pricewaterhouse Cooper Money Tree.

And the bar is rising.

Experts surveyed this year nominated 30 tech companies as the hottest to watch in 2016 in terms of growth, new hiring, product development and national traction. The finalists range from recently launched early stage startups to mid-size companies hitting their stride. Eight have more than 100 employees. The next Pittsburgh IPO may be among them.

The Top 16 Tech Companies to Watch in 2016:

4moms    What began as a five-person startup is a global brand today employing 170 people in a downtown office that bears its name. The maker of robotic baby gear promises two new verticals in 2016: a magnetic high chair and the first self-installing infant car seat that gives the tech-savviest of parents peace of mind in knowing the car seat is coupled correctly on every installation.

ALung    This South Side firm will guide its respiratory dialysis product through the final phases of the FDA clinical trial process in 2016. The Hemolung RAS made significant progress in 2015 and is already saving lives in Europe. ALung, which closed on a $10.5 million funding round this month, employs 22 in the U.S. and 5 in Europe.

Schell Games in Station Square expects a banner year. It might be the most colorful workplace in Pittsburgh.

Schell Games in Station Square expects a banner year. Working there is a pretty cool proposition too. /Photo by Rob Larson

Aquion  What the world desperately needs is a sustainable battery capable of storing renewable energy for large-scale use for those times when the sun doesn’t shine and wind doesn’t blow. The Aquion battery does just that. With competition heating up—the Tesla Gigafactory for starters—Aquion is holding its own. The company celebrated a big year in 2015 and founder Jay Whitacre won the prestigious Lemelson-MIT Prize as an inventor who will change the world. The firm has 150 employees worldwide, has raised $125 million to date and will announce a new fundraising round in 2016.

Avere works with an impressive list of companies (like film studios) and cloud providers (like Amazon and Google) to turbo-charge their computing power. H3 Biomedicine in Cambridge, MA, is speeding toward a cure for cancer thanks to this North Side firm. 2016 will bring challenging new work with Microsoft. Some speculate Avere may be Pittsburgh’s next IPO.

The all-in-one desktop maker space is perfect for small businesses.

The all-in-one desktop maker space is perfect for small businesses. /Photo by Rob Larson

BoXZY is on the forefront of a new age in printing. Its all-in-one desktop maker space is perfect for hobbyists and small businesses. Developed by Pittsburgh brothers Joel and Justin Johnson, BoXZY triples as a CNC Mill, 3D printer and laser engraver. The startup raised an impressive $1.2 million on Kickstarter this year in a little more than a month. Autodesk is a major partner.

ContainerShip  Imagine you want to lift your house up off its foundation and move it to another place. That’s what ContainerShip accomplishes on a software level–  “dynamic portability” that allows companies to facilitate work flows by switching hosting providers and database technologies while making it easier to use the public cloud. Look for several big announcements this year including key partnerships and a 2.0 version of the platform.

Digital Dream Labs  What can be more promising in this age of STEAM than a toy that engages young children and teaches them to code and program? Popular Mechanics named Digital Dream Labs one of 33 Best Toys of the Year for 2015. Need we say more?

Duolingo  Hands down the hottest language-learning app in the world. The free science-based platform is constantly adding new languages (most recently Russian and Polish) and personalizing its lessons to individual learning styles. Having outgrown its Shadyside digs, Duolingo will move to East Liberty in 2016 and double in size to 110. Stay tuned for the rollout of a “new super secret app,” says founder Luis von Ahn.