9 companies
DCI
Donaldson Co. Inc.
donaldson is one of the nation’s largest and consistently growing filtration manufacturers.
Minnesota
$7,700.7 mm
NYSE
CECO
Ceco Environmental Corp.
ceco is diversified global provider of leading engineered technologies to the environmental, energy, and fluid handling and filtration industrial segments, targeting specific niche-focused end markets through an attractive asset-light business model, strategically balanced across the world.
Texas
$657.4 mm
NASDAQ
PPIH
Perma-Pipe International Holdings Inc
perma-pipe, inc is a subsidiary of mfri.
Texas
$65.5 mm
NASDAQ
FTEK
Fuel Tech Inc
fuel tech is a leading technology company engaged in the worldwide development and application of multi-pollutant emissions control systems, enabling customers to produce energy in a cost-effective and environmentally sustainable manner.
Illinois
$31.0 mm
NASDAQ
MKULQ
Molekule Group, Inc.
aeroclean is a pathogen elimination company on a mission to keep work, play and life going—with continuous air sanitization products called, pūrgo (pure-go.) we create solutions for hospitals, offices and many shared spaces as well as elevators, travel and more.
Florida
$1.7 mm
NASDAQ
PIAC
Princeton Capital Corp
We are an externally managed, non-diversified, closed-end investment company that has elected to be treated as a BDC under the 1940 Act.
Massachusetts
OTC
KNOS
Kronos Advanced Technologies Inc
Kronos Advanced Technologies, Inc.
Oregon
OTC
BRMT
Bare Metal Standard Inc.
Idaho
OTC
Filtration Group Corp
Illinois
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