PETROTERRA CORP.

Trucking

Nielsen Holdings plc

Consulting Services

AMERCO /NV/

Rental & Leasing Services

XPO Logistics, Inc.

Integrated Freight & Logistics

GXO Logistics, Inc.

Integrated Freight & Logistics

ASPEN AEROGELS INC

Building Products & Equipment

Double Eagle Acquisition Corp.

Rental & Leasing Services

Gates Industrial Corp plc

Specialty Industrial Machinery

ADVANCED DRAINAGE SYSTEMS, INC.

Building Products & Equipment

GS Acquisition Holdings Corp

Electrical Equipment & Parts

Core & Main, Inc.

Industrial Distribution

Monocle Acquisition Corp

Airports & Air Services

GRAFTECH INTERNATIONAL LTD

Electrical Equipment & Parts

Hayward Holdings, Inc.

Electrical Equipment & Parts

JELD-WEN Holding, Inc.

Building Products & Equipment

WESCO INTERNATIONAL INC

Industrial Distribution

TransDigm Group INC

Aerospace & Defense

HireRight Holdings Corp

Staffing & Employment Services

NESCO HOLDINGS, INC.

Rental & Leasing Services

GARDNER DENVER HOLDINGS, INC.

Specialty Industrial Machinery

TASER INTERNATIONAL INC

Aerospace & Defense

SYSTEMAX INC

Industrial Distribution

AZEK Co Inc.

Building Products & Equipment

HERTZ GLOBAL HOLDINGS INC

Rental & Leasing Services

REPUBLIC SERVICES, INC.

Waste Management

Virgin Galactic Holdings, Inc

Aerospace & Defense

M III Acquisition Corp.

Engineering & Construction

Nikola Corp

Farm & Heavy Construction Machinery

BEACON ROOFING SUPPLY INC

Building Products & Equipment

ILLINOIS TOOL WORKS INC

Specialty Industrial Machinery

AUTOMATIC DATA PROCESSING INC

Staffing & Employment Services

TPI COMPOSITES, INC

Specialty Industrial Machinery

VERRA MOBILITY Corp

Infrastructure Operations

Roman DBDR Tech Acquisition Corp.

Metal Fabrication

GMS Inc.

Building Products & Equipment

Hillman Solutions Corp.

Tools & Accessories

HERTZ GLOBAL HOLDINGS, INC

Rental & Leasing Services

Sun Country Airlines Holdings, Inc.

Airlines

Vectrus, Inc.

Aerospace & Defense

Evoqua Water Technologies Corp.

Pollution & Treatment Controls

CF Finance Acquisition Corp II

Building Products & Equipment

ESAB Corp

Metal Fabrication

FIRST ADVANTAGE CORP

Specialty Business Services

AVIS BUDGET GROUP, INC.

Rental & Leasing Services

UNIVERSAL LOGISTICS HOLDINGS, INC.

Trucking

Frontier Group Holdings, Inc.

Airlines

Ryerson Holding Corp

Metal Fabrication

TRINITY INDUSTRIES INC

Railroads

Verisk Analytics, Inc.

Consulting Services

DEERE & CO

Farm & Heavy Construction Machinery

Yellowstone Acquisition Co

Aerospace & Defense

ZIPRECRUITER, INC.

Staffing & Employment Services

MSC INDUSTRIAL DIRECT CO INC

Industrial Distribution

HARRIS CORP /DE/

Aerospace & Defense

DIGITAL POWER CORP

Aerospace & Defense

EASTMAN KODAK CO

Specialty Business Services

Montrose Environmental Group, Inc.

Waste Management

CUMMINS INC

Specialty Industrial Machinery

SNAP-ON Inc

Tools & Accessories

AMETEK INC/

Specialty Industrial Machinery

GENCO SHIPPING & TRADING LTD

Marine Shipping

Advanced Emissions Solutions, Inc.

Pollution & Treatment Controls

Babcock & Wilcox Enterprises, Inc.

Specialty Industrial Machinery

Cryoport, Inc.

Integrated Freight & Logistics

CATERPILLAR INC

Farm & Heavy Construction Machinery

NAPCO SECURITY TECHNOLOGIES, INC

Security & Protection Services

DIRTT ENVIRONMENTAL SOLUTIONS LTD

Engineering & Construction

NORFOLK SOUTHERN CORP

Railroads

PAYCHEX INC

Staffing & Employment Services

BrightView Holdings, Inc.

Specialty Business Services

Ingersoll-Rand plc

Building Products & Equipment

CSX CORP

Railroads

CARLISLE COMPANIES INC

Building Products & Equipment

TuSimple Holdings Inc.

Trucking

Archer Aviation Inc.

Aerospace & Defense

WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP

Railroads

Enovix Corp

Electrical Equipment & Parts

PARKER HANNIFIN CORP

Specialty Industrial Machinery

Agrify Corp

Engineering & Construction

UNITED PARCEL SERVICE INC

Integrated Freight & Logistics

PureCycle Technologies, Inc.

Pollution & Treatment Controls

DELTA AIR LINES INC /DE/

Airlines

Installed Building Products, Inc.

Building Products & Equipment

CINTAS CORP

Specialty Business Services

PREFORMED LINE PRODUCTS CO

Electrical Equipment & Parts

System1, Inc.

Specialty Business Services

Heritage-Crystal Clean, Inc.

Waste Management

GENERAL DYNAMICS CORP

Aerospace & Defense

Triton International Ltd

Rental & Leasing Services

Omega Flex, Inc.

Specialty Industrial Machinery

MASCO CORP /DE/

Building Products & Equipment

Xometry, Inc.

Specialty Industrial Machinery

TRINET GROUP INC

Staffing & Employment Services

B. Riley Principal Merger Corp.

Rental & Leasing Services

United Continental Holdings, Inc.

Airlines

WASTE MANAGEMENT INC

Waste Management

Booz Allen Hamilton Holding Corp

Consulting Services

TETRA TECH INC

Engineering & Construction

ADT Inc.

Security & Protection Services

Eagle Bulk Shipping Inc.

Marine Shipping

PACCAR INC

Farm & Heavy Construction Machinery

POOL CORP

Industrial Distribution

Woodward, Inc.

Aerospace & Defense

Colfax CORP

Specialty Industrial Machinery

RBC Bearings INC

Tools & Accessories

STANLEY BLACK & DECKER, INC.

Tools & Accessories

ROPER TECHNOLOGIES INC

Specialty Industrial Machinery

TYCO INTERNATIONAL plc

Building Products & Equipment

Eaton Corp plc

Specialty Industrial Machinery

HUB GROUP INC

Integrated Freight & Logistics

JACOBS ENGINEERING GROUP INC /DE/

Engineering & Construction

Janus International Group, Inc.

Building Products & Equipment

FEDEX CORP

Integrated Freight & Logistics

HEICO CORP

Aerospace & Defense

INSPERITY, INC.

Staffing & Employment Services

OLD DOMINION FREIGHT LINE INC/VA

Trucking

Civeo Corp

Specialty Business Services

GRAINGER W W INC

Industrial Distribution

ROCKWELL AUTOMATION INC

Specialty Industrial Machinery

BOEING CO

Aerospace & Defense

GENERAL ELECTRIC CO

Specialty Industrial Machinery

Construction Partners, Inc.

Engineering & Construction

Ameresco, Inc.

Engineering & Construction

AAR CORP

Aerospace & Defense

Bloom Energy Corp

Electrical Equipment & Parts

NV5 Global, Inc.

Engineering & Construction

IAA, Inc.

Specialty Business Services

GENERAC HOLDINGS INC.

Specialty Industrial Machinery

TransUnion

Consulting Services

CRANE CO /DE/

Specialty Industrial Machinery

CASELLA WASTE SYSTEMS INC

Waste Management

WERNER ENTERPRISES INC

Trucking

Performant Financial Corp

Specialty Business Services

SAIA INC

Trucking

GATX CORP

Rental & Leasing Services

UNITED RENTALS INC /DE

Rental & Leasing Services

SiteOne Landscape Supply, Inc.

Industrial Distribution

Genesis Park Acquisition Corp.

Aerospace & Defense

HONEYWELL INTERNATIONAL INC

Conglomerates

HYSTER-YALE MATERIALS HANDLING, INC.

Farm & Heavy Construction Machinery

PARSONS CORP

Specialty Industrial Machinery

Atkore International Group Inc.

Electrical Equipment & Parts

Rain Sound Acquisition Corp

Consulting Services

Rexnord Corp

Pollution & Treatment Controls

Fortress Transportation & Infrastructure Investors LLC

Rental & Leasing Services

Willdan Group, Inc.

Engineering & Construction

COMFORT SYSTEMS USA INC

Engineering & Construction

Aramark

Specialty Business Services

Mastech Digital, Inc.

Staffing & Employment Services

TORO CO

Tools & Accessories

Blade Air Mobility, Inc.

Airports & Air Services

GRACO INC

Specialty Industrial Machinery

AECOM

Engineering & Construction

PLUG POWER INC

Electrical Equipment & Parts

C H ROBINSON WORLDWIDE INC

Integrated Freight & Logistics

Upwork Inc.

Staffing & Employment Services

MSA Safety Inc

Security & Protection Services

Air Transport Services Group, Inc.

Airlines

QUANTA SERVICES INC

Engineering & Construction

GREENBRIER COMPANIES INC

Railroads

MAXIMUS INC

Specialty Business Services

SMITH A O CORP

Specialty Industrial Machinery

INNOVATIVE SOLUTIONS & SUPPORT INC

Aerospace & Defense

RYDER SYSTEM INC

Rental & Leasing Services

B. Riley Principal Merger Corp. II

Electrical Equipment & Parts

EMCOR GROUP INC

Engineering & Construction

Solid Power, Inc.

Electrical Equipment & Parts

EXPEDITORS INTERNATIONAL OF WASHINGTON INC

Integrated Freight & Logistics

Stable Road Acquisition Corp.

Aerospace & Defense

JANEL CORP

Integrated Freight & Logistics

EQUIFAX INC

Consulting Services

BARNES GROUP INC

Specialty Industrial Machinery

Compass Diversified Holdings

Conglomerates

Quest Resource Holding Corp

Waste Management

IDEX CORP /DE/

Specialty Industrial Machinery

GLOBAL PAYMENTS INC

Specialty Business Services

Energy Recovery, Inc.

Pollution & Treatment Controls

HC2 HOLDINGS, INC.

Engineering & Construction

DYCOM INDUSTRIES INC

Engineering & Construction

TEXTRON INC

Aerospace & Defense

Wilhelmina International, Inc.

Specialty Business Services

LOCKHEED MARTIN CORP

Aerospace & Defense

Allegiant Travel CO

Airlines

SPX CORP

Specialty Industrial Machinery

Xos, Inc.

Farm & Heavy Construction Machinery

VALMONT INDUSTRIES INC

Conglomerates

SWIFT TRANSPORTATION Co

Trucking

Allegion plc

Security & Protection Services

AAON INC

Building Products & Equipment

EMERSON ELECTRIC CO

Specialty Industrial Machinery

NORTHROP GRUMMAN CORP /DE/

Aerospace & Defense

HUBBELL INC

Electrical Equipment & Parts

TIMKEN CO

Tools & Accessories

Hudson Global, Inc.

Staffing & Employment Services

AeroVironment Inc

Aerospace & Defense

Xylem Inc.

Specialty Industrial Machinery

LINCOLN ELECTRIC HOLDINGS INC

Tools & Accessories

Bird Global, Inc.

Rental & Leasing Services

Terran Orbital Corp

Aerospace & Defense

LENNOX INTERNATIONAL INC

Building Products & Equipment

FASTENAL CO

Industrial Distribution

GigCapital3, Inc.

Farm & Heavy Construction Machinery

CLEAN HARBORS INC

Waste Management

Roadrunner Transportation Systems, Inc.

Trucking

Matson, Inc.

Marine Shipping

Carrier Global Corp

Building Products & Equipment

3M CO

Conglomerates

Joby Aviation, Inc.

Airports & Air Services

APi Group Corp

Engineering & Construction

HUNT J B TRANSPORT SERVICES INC

Integrated Freight & Logistics

Wheels Up Experience Inc.

Airports & Air Services

AGCO CORP /DE

Farm & Heavy Construction Machinery

Hillenbrand, Inc.

Specialty Industrial Machinery

ARMSTRONG WORLD INDUSTRIES INC

Building Products & Equipment

MUELLER INDUSTRIES INC

Metal Fabrication

CBIZ, Inc.

Specialty Business Services

KFORCE INC

Staffing & Employment Services

TITAN INTERNATIONAL INC

Farm & Heavy Construction Machinery

NN INC

Conglomerates

ATLAS TECHNICAL CONSULTANTS, INC.

Engineering & Construction

STERLING CONSTRUCTION CO INC

Engineering & Construction

Otis Worldwide Corp

Specialty Industrial Machinery

nVent Electric plc

Electrical Equipment & Parts

CSW INDUSTRIALS, INC.

Specialty Industrial Machinery

US XPRESS ENTERPRISES INC

Trucking

Safety Quick Lighting & Fans Corp.

Electrical Equipment & Parts

LIQTECH INTERNATIONAL INC

Pollution & Treatment Controls

RCM TECHNOLOGIES INC

Conglomerates

HALF ROBERT INTERNATIONAL INC /DE/

Staffing & Employment Services

UNITED TECHNOLOGIES CORP /DE/

Aerospace & Defense

TEREX CORP

Farm & Heavy Construction Machinery

Blink Charging Co.

Engineering & Construction

SKYWEST INC

Airlines

YayYo, Inc.

Rental & Leasing Services

APPLIED INDUSTRIAL TECHNOLOGIES INC

Industrial Distribution

LAWSON PRODUCTS INC/NEW/DE/

Industrial Distribution

Huron Consulting Group Inc.

Consulting Services

RENT A CENTER INC DE

Rental & Leasing Services

Platinum Eagle Acquisition Corp.

Specialty Business Services

SIMPSON MANUFACTURING CO INC /CA/

Building Products & Equipment

NORDSON CORP

Specialty Industrial Machinery

WABASH NATIONAL CORP /DE

Farm & Heavy Construction Machinery

TUTOR PERINI Corp

Engineering & Construction

HyreCar Inc.

Rental & Leasing Services

DONALDSON CO INC

Specialty Industrial Machinery

Astra Space, Inc.

Aerospace & Defense

KRATOS DEFENSE & SECURITY SOLUTIONS, INC.

Aerospace & Defense

FRANKLIN ELECTRIC CO INC

Specialty Industrial Machinery

ULTRALIFE CORP

Electrical Equipment & Parts

ARCBEST CORP /DE/

Trucking

CLEARSIGN COMBUSTION CORP

Pollution & Treatment Controls

LANDSTAR SYSTEM INC

Integrated Freight & Logistics

Charah Solutions, Inc.

Waste Management

MIDDLEBY CORP

Specialty Industrial Machinery

DOVER Corp

Specialty Industrial Machinery

Arcosa, Inc.

Infrastructure Operations

KADANT INC

Specialty Industrial Machinery

EXPONENT INC

Consulting Services

Tuscan Holdings Corp.

Electrical Equipment & Parts

PFSWEB INC

Specialty Business Services

SERVOTRONICS INC /DE/

Electrical Equipment & Parts

HEARTLAND EXPRESS INC

Trucking

FLUOR CORP

Engineering & Construction

KORN FERRY INTERNATIONAL

Staffing & Employment Services

WATTS WATER TECHNOLOGIES INC

Specialty Industrial Machinery

Aaron's Holdings Company, Inc.

Rental & Leasing Services

H&E Equipment Services, Inc.

Rental & Leasing Services

Pangaea Logistics Solutions Ltd.

Marine Shipping

UNIFIRST CORP

Specialty Business Services

RESOURCES CONNECTION INC

Consulting Services

KIRBY CORP

Marine Shipping

Veritiv Corp

Conglomerates

AIR LEASE CORP

Rental & Leasing Services

FlexShopper, Inc.

Rental & Leasing Services

ALCOA INC.

Specialty Industrial Machinery

MERCURY SYSTEMS INC

Aerospace & Defense

Fortune Brands Home & Security, Inc.

Building Products & Equipment

ATLAS AIR WORLDWIDE HOLDINGS INC

Airports & Air Services

WORTHINGTON INDUSTRIES INC

Metal Fabrication

INTEVAC INC

Aerospace & Defense

OSHKOSH CORP

Farm & Heavy Construction Machinery

TRANSCAT INC

Industrial Distribution

COVENANT TRANSPORTATION GROUP INC

Trucking

Builders FirstSource, Inc.

Building Products & Equipment

ICAHN ENTERPRISES L.P.

Conglomerates

YRC Worldwide Inc.

Trucking

FTI CONSULTING INC

Consulting Services

Waste Connections, Inc.

Waste Management

ALAMO GROUP INC

Farm & Heavy Construction Machinery

Owens Corning

Building Products & Equipment

ACCO BRANDS Corp

Business Equipment & Supplies

BARRETT BUSINESS SERVICES INC

Staffing & Employment Services

STEEL PARTNERS HOLDINGS L.P.

Conglomerates

SOUTHWEST AIRLINES CO

Airlines

HUNTINGTON INGALLS INDUSTRIES, INC.

Aerospace & Defense

R F INDUSTRIES LTD

Electrical Equipment & Parts

Titan Machinery Inc.

Industrial Distribution

MYR GROUP INC.

Engineering & Construction

Rocket Lab USA, Inc.

Aerospace & Defense

GLOBAL POWER EQUIPMENT GROUP INC.

Engineering & Construction

PGT, Inc.

Building Products & Equipment

UNION PACIFIC CORP

Railroads

STANDEX INTERNATIONAL CORP/DE/

Specialty Industrial Machinery

PARK OHIO HOLDINGS CORP

Specialty Industrial Machinery

ESPEY MFG & ELECTRONICS CORP

Electrical Equipment & Parts

LEGALZOOM.COM, INC.

Specialty Business Services

Bowman Consulting Group Ltd.

Consulting Services

FTAI Infrastructure Inc.

Conglomerates

BRINKS CO

Security & Protection Services

Aqua Metals, Inc.

Waste Management

STURM RUGER & CO INC

Aerospace & Defense

ASTROTECH Corp

Aerospace & Defense

LOUISIANA-PACIFIC CORP

Building Products & Equipment

CVD EQUIPMENT CORP

Specialty Industrial Machinery

CURTISS WRIGHT CORP

Aerospace & Defense

BlueLinx Holdings Inc.

Building Products & Equipment

Arlo Technologies, Inc.

Security & Protection Services

Pacific Green Technologies Inc.

Pollution & Treatment Controls

TopBuild Corp

Engineering & Construction

AEROCENTURY CORP

Rental & Leasing Services

Armstrong Flooring, Inc.

Building Products & Equipment

HEXCEL CORP /DE/

Aerospace & Defense

AIR T INC

Integrated Freight & Logistics

RITCHIE BROS AUCTIONEERS INC

Specialty Business Services

Mayville Engineering Company, Inc.

Metal Fabrication

Arconic Corp

Metal Fabrication

HICKOK INC

Specialty Industrial Machinery

Byrna Technologies Inc.

Aerospace & Defense

WILLIS LEASE FINANCE CORP

Rental & Leasing Services

Command Center, Inc.

Staffing & Employment Services

ARC DOCUMENT SOLUTIONS, INC.

Specialty Business Services

HNI CORP

Business Equipment & Supplies

REV Group, Inc.

Farm & Heavy Construction Machinery

ITT Corp

Specialty Industrial Machinery

American Airlines Group Inc.

Airlines

ACUITY BRANDS INC

Electrical Equipment & Parts

SHARPS COMPLIANCE CORP

Waste Management

ALLEGHENY TECHNOLOGIES INC

Metal Fabrication

Schneider National, Inc.

Trucking

WATSCO INC

Industrial Distribution

KENNAMETAL INC

Tools & Accessories

CRA INTERNATIONAL, INC.

Consulting Services

Quanex Building Products CORP

Building Products & Equipment

Cadre Holdings, Inc.

Aerospace & Defense

ABM INDUSTRIES INC /DE/

Specialty Business Services

SPARTAN MOTORS INC

Farm & Heavy Construction Machinery

Primoris Services Corp

Engineering & Construction

TREX CO INC

Building Products & Equipment

Limbach Holdings, Inc.

Engineering & Construction

MANITOWOC CO INC

Farm & Heavy Construction Machinery

ALASKA AIR GROUP, INC.

Airlines

CECO ENVIRONMENTAL CORP

Pollution & Treatment Controls

Avery Dennison Corp

Business Equipment & Supplies

BRADY CORP

Security & Protection Services

ICF International, Inc.

Consulting Services

LIGHTBRIDGE Corp

Electrical Equipment & Parts

AZZ INC

Metal Fabrication

BWX Technologies, Inc.

Aerospace & Defense

MASTEC INC

Engineering & Construction

COLUMBUS MCKINNON CORP

Farm & Heavy Construction Machinery

EASTERN CO

Tools & Accessories

Mammoth Energy Services, Inc.

Conglomerates

Integrated Electrical Services, Inc.

Engineering & Construction

MASONITE INTERNATIONAL CORP

Building Products & Equipment

ESS Tech, Inc.

Electrical Equipment & Parts

CUI Global, Inc.

Engineering & Construction

John Bean Technologies CORP

Specialty Industrial Machinery

BG Staffing, Inc.

Staffing & Employment Services

Planet Labs PBC

Aerospace & Defense

GRIFFON CORP

Conglomerates

AMERICAN SUPERCONDUCTOR CORP /DE/

Specialty Industrial Machinery

INSTEEL INDUSTRIES INC

Metal Fabrication

PENTAIR plc

Specialty Industrial Machinery

KBR, INC.

Engineering & Construction

DXP ENTERPRISES INC

Industrial Distribution

Proto Labs Inc

Metal Fabrication

FORRESTER RESEARCH, INC.

Consulting Services

FORWARD AIR CORP

Integrated Freight & Logistics

MOOG INC.

Aerospace & Defense

AEROJET ROCKETDYNE HOLDINGS, INC.

Aerospace & Defense

Latham Group, Inc.

Building Products & Equipment

ENPRO INDUSTRIES, INC

Specialty Industrial Machinery

FEDERAL SIGNAL CORP /DE/

Pollution & Treatment Controls

RESIDEO TECHNOLOGIES, INC.

Security & Protection Services

Galileo Acquisition Corp.

Specialty Industrial Machinery

KELLY SERVICES INC

Staffing & Employment Services

TrueBlue, Inc.

Staffing & Employment Services

APOGEE ENTERPRISES, INC.

Building Products & Equipment

ALJ REGIONAL HOLDINGS INC

Specialty Business Services

TENNANT CO

Specialty Industrial Machinery

Evolv Technologies Holdings, Inc.

Security & Protection Services

MDU RESOURCES GROUP INC

Conglomerates

DUCOMMUN INC /DE/

Aerospace & Defense

Energy Services of America CORP

Engineering & Construction

FreightCar America, Inc.

Railroads

Altra Industrial Motion Corp.

Specialty Industrial Machinery

Great Lakes Dredge & Dock CORP

Engineering & Construction

ALPHA PRO TECH LTD

Building Products & Equipment

GRAHAM CORP

Specialty Industrial Machinery

ENERGIZER HOLDINGS, INC.

Electrical Equipment & Parts

GORMAN RUPP CO

Specialty Industrial Machinery

Catapult Solutions, Inc.

Pollution & Treatment Controls

POWER SOLUTIONS INTERNATIONAL, INC.

Specialty Industrial Machinery

MCGRATH RENTCORP

Rental & Leasing Services

ADVANCED ENERGY INDUSTRIES INC

Electrical Equipment & Parts

Mueller Water Products, Inc.

Specialty Industrial Machinery

MARTEN TRANSPORT LTD

Trucking

urban-gro, Inc.

Farm & Heavy Construction Machinery

NORTHWEST PIPE CO

Metal Fabrication

HARSCO CORP

Waste Management

Aaron's Company, Inc.

Rental & Leasing Services

Thermon Group Holdings, Inc.

Specialty Industrial Machinery

MESA AIR GROUP INC

Airlines

HYDROFARM HOLDINGS GROUP, INC.

Farm & Heavy Construction Machinery

IDEANOMICS, INC.

Farm & Heavy Construction Machinery

CHINA BAK BATTERY INC

Electrical Equipment & Parts

SUN HYDRAULICS CORP

Specialty Industrial Machinery

STEELCASE INC

Business Equipment & Supplies

ARGAN INC

Engineering & Construction

ManpowerGroup Inc.

Staffing & Employment Services

TEAM INC

Specialty Business Services

HAYNES INTERNATIONAL INC

Metal Fabrication

POWELL INDUSTRIES INC

Electrical Equipment & Parts

SMITH & WESSON HOLDING CORP

Aerospace & Defense

Flux Power Holdings, Inc.

Electrical Equipment & Parts

HEIDRICK & STRUGGLES INTERNATIONAL INC

Staffing & Employment Services

Daseke, Inc.

Trucking

Clean Energy Technologies, Inc.

Specialty Industrial Machinery

REGAL BELOIT CORP

Specialty Industrial Machinery

TEJON RANCH CO

Conglomerates

TEL INSTRUMENT ELECTRONICS CORP

Aerospace & Defense

EnerSys

Electrical Equipment & Parts

Greenland Acquisition Corp.

Specialty Industrial Machinery

GIBRALTAR INDUSTRIES, INC.

Building Products & Equipment

SPAR GROUP INC

Specialty Business Services

ADM ENDEAVORS, INC.

Specialty Business Services

VerifyMe, Inc.

Security & Protection Services

PATRIOT TRANSPORTATION HOLDING, INC.

Trucking

SP Plus Corp

Specialty Business Services

Industrea Acquisition Corp.

Engineering & Construction

LUXFER HOLDINGS PLC

Specialty Industrial Machinery

BUTLER NATIONAL CORP

Aerospace & Defense

MATTHEWS INTERNATIONAL CORP

Conglomerates

BION ENVIRONMENTAL TECHNOLOGIES INC

Pollution & Treatment Controls

STERICYCLE INC

Waste Management

Mosaic Acquisition Corp.

Security & Protection Services

CAPSTONE TURBINE Corp

Specialty Industrial Machinery

Mistras Group, Inc.

Security & Protection Services

DLH Holdings Corp.

Specialty Business Services

TRIUMPH GROUP INC

Aerospace & Defense

TAYLOR DEVICES INC

Specialty Industrial Machinery

Manitex International, Inc.

Farm & Heavy Construction Machinery

Spirit Airlines, Inc.

Airlines

VIAD CORP

Specialty Business Services

ORION ENERGY SYSTEMS, INC.

Electrical Equipment & Parts

MATRIX SERVICE CO

Engineering & Construction

LINDSAY CORP

Farm & Heavy Construction Machinery

TECOGEN INC.

Electrical Equipment & Parts

1847 Holdings LLC

Conglomerates

GULF ISLAND FABRICATION INC

Metal Fabrication

PERMA FIX ENVIRONMENTAL SERVICES INC

Waste Management

HAWAIIAN HOLDINGS INC

Airlines

ACACIA RESEARCH CORP

Specialty Business Services

Hill International, Inc.

Engineering & Construction

Kimball Electronics, Inc.

Electrical Equipment & Parts

FOSTER L B CO

Railroads

PITNEY BOWES INC /DE/

Integrated Freight & Logistics

FUEL TECH, INC.

Pollution & Treatment Controls

ICTS INTERNATIONAL N V

Security & Protection Services

CANADIAN PACIFIC RAILWAY LTD/CN

Railroads

VirTra, Inc

Aerospace & Defense

CHART INDUSTRIES INC

Specialty Industrial Machinery

Coda Octopus Group, Inc.

Aerospace & Defense

Truli Media Group, Inc.

Staffing & Employment Services

ASTRONICS CORP

Aerospace & Defense

DALRADA FINANCIAL CORP

Consulting Services

SEACOR Marine Holdings Inc.

Marine Shipping

JETBLUE AIRWAYS CORP

Airlines

Perfect Solutions Group, Inc.

Security & Protection Services

COMPX INTERNATIONAL INC

Security & Protection Services

STARRETT L S CO

Tools & Accessories

BROADWIND ENERGY, INC.

Specialty Industrial Machinery

ARTS WAY MANUFACTURING CO INC

Farm & Heavy Construction Machinery

Quad/Graphics, Inc.

Specialty Business Services

ACTUANT CORP

Specialty Industrial Machinery

Zanite Acquisition Corp.

Aerospace & Defense

USD Partners LP

Railroads

GENERAL EMPLOYMENT ENTERPRISES INC

Staffing & Employment Services

ODYSSEY MARINE EXPLORATION INC

Specialty Business Services

ENNIS, INC.

Business Equipment & Supplies

KAMAN Corp

Aerospace & Defense

BIO KEY INTERNATIONAL INC

Security & Protection Services

FUELCELL ENERGY INC

Electrical Equipment & Parts

NETWORK 1 TECHNOLOGIES INC

Specialty Business Services

AMMO, INC.

Aerospace & Defense

PIONEER POWER SOLUTIONS, INC.

Electrical Equipment & Parts

StealthGas Inc.

Marine Shipping

PAM TRANSPORTATION SERVICES INC

Trucking

VSE CORP

Aerospace & Defense

GRANITE CONSTRUCTION INC

Engineering & Construction

AURA SYSTEMS INC

Specialty Industrial Machinery

P&F INDUSTRIES INC

Tools & Accessories

Astro Aerospace Ltd.

Aerospace & Defense

AMPCO PITTSBURGH CORP

Metal Fabrication

CPI AEROSTRUCTURES INC

Aerospace & Defense

MassRoots, Inc.

Waste Management

Znergy, Inc.

Electrical Equipment & Parts

PARK ELECTROCHEMICAL CORP

Aerospace & Defense

Toughbuilt Industries, Inc

Tools & Accessories

Greenpro Capital Corp.

Consulting Services

CIRCOR INTERNATIONAL INC

Specialty Industrial Machinery

CARPENTER TECHNOLOGY CORP

Metal Fabrication

DIGITAL ALLY INC

Security & Protection Services

BIOHITECH GLOBAL, INC.

Pollution & Treatment Controls

Spirit AeroSystems Holdings, Inc.

Aerospace & Defense

AIR INDUSTRIES GROUP

Aerospace & Defense

APPLIED ENERGETICS, INC.

Aerospace & Defense

MFRI INC

Building Products & Equipment

Midwest Energy Emissions Corp.

Pollution & Treatment Controls

ENCORE WIRE CORP

Electrical Equipment & Parts

Optex Systems Holdings Inc

Aerospace & Defense

Ideal Power Inc.

Electrical Equipment & Parts

CASS INFORMATION SYSTEMS INC

Specialty Business Services

NL INDUSTRIES INC

Security & Protection Services

USA TRUCK INC

Trucking

TOMI Environmental Solutions, Inc.

Pollution & Treatment Controls

AVALON HOLDINGS CORP

Waste Management

EnviroStar, Inc.

Industrial Distribution

FLOWSERVE CORP

Specialty Industrial Machinery

American Cannabis Company, Inc.

Consulting Services

TechCare Corp.

Specialty Business Services

Hawkeye Systems, Inc.

Aerospace & Defense

India Globalization Capital, Inc.

Conglomerates

ASTEC INDUSTRIES INC

Farm & Heavy Construction Machinery

SIFCO INDUSTRIES INC

Aerospace & Defense

DHI GROUP, INC.

Staffing & Employment Services

APPLIANCE RECYCLING CENTERS OF AMERICA INC /MN

Waste Management

Professional Diversity Network, Inc.

Staffing & Employment Services

FRANKLIN COVEY CO

Consulting Services

Orion Group Holdings Inc

Engineering & Construction

GENCOR INDUSTRIES INC

Farm & Heavy Construction Machinery

RADIANT LOGISTICS, INC

Integrated Freight & Logistics

Nxt-ID, Inc.

Security & Protection Services

ENGLOBAL CORP

Engineering & Construction

Polar Power, Inc.

Electrical Equipment & Parts

HIGHWAY HOLDINGS LTD

Metal Fabrication

TWIN DISC INC

Specialty Industrial Machinery

OCEAN BIO CHEM INC

Conglomerates

Jacksam Corp

Specialty Industrial Machinery

AerCap Holdings N.V.

Rental & Leasing Services

Virgin Orbit Holdings, Inc.

Aerospace & Defense

Mirion Technologies, Inc.

Specialty Industrial Machinery

HURCO COMPANIES INC

Specialty Industrial Machinery

Iveda Solutions, Inc.

Security & Protection Services

XERIANT, INC.

Aerospace & Defense

SG BLOCKS, INC.

Metal Fabrication

CASTLE A M & CO

Industrial Distribution

Staffing 360 Solutions, Inc.

Staffing & Employment Services

VIVIC CORP.

Conglomerates

EVO Transportation & Energy Services, Inc.

Trucking

Ocean Power Technologies, Inc.

Electrical Equipment & Parts

SusGlobal Energy Corp.

Waste Management

TORtec Group Corp

Waste Management

Elvictor Group, Inc.

Specialty Business Services

SEABOARD CORP /DE/

Conglomerates

QHY GROUP

Waste Management

Clean Coal Technologies Inc.

Specialty Industrial Machinery

UNIVERSAL SECURITY INSTRUMENTS INC

Security & Protection Services

Saker Aviation Services, Inc.

Airports & Air Services

TREDEGAR CORP

Metal Fabrication

Surna Inc.

Farm & Heavy Construction Machinery

Spire Global, Inc.

Specialty Business Services

LIQUIDMETAL TECHNOLOGIES INC

Metal Fabrication

ShiftPixy, Inc.

Staffing & Employment Services

TECHPRECISION CORP

Metal Fabrication

NATIONAL PRESTO INDUSTRIES INC

Aerospace & Defense

COOL TECHNOLOGIES, INC.

Industrial Distribution

BINGHAM CANYON CORP

Pollution & Treatment Controls

TWO RIVERS WATER & FARMING Co

Farm & Heavy Construction Machinery

Sino-Global Shipping America, Ltd.

Integrated Freight & Logistics

REGI U S INC

Specialty Industrial Machinery

SUCCESS ENTERTAINMENT GROUP INTERNATIONAL INC.

Engineering & Construction

GROWLIFE, INC.

Industrial Distribution

Lifelogger Technologies Corp

Conglomerates

TOP SHIPS INC.

Marine Shipping

Diana Containerships Inc.

Marine Shipping

Strategic Environmental & Energy Resources, Inc.

Waste Management

Drone USA Inc.

Aerospace & Defense

TX Holdings, Inc.

Industrial Distribution

Water Now, Inc.

Pollution & Treatment Controls

DAIS ANALYTIC CORP

Electrical Equipment & Parts

Reliant Holdings, Inc.

Engineering & Construction

NuLife Sciences, Inc.

Security & Protection Services

Crown Equity Holdings, Inc.

Consulting Services

Alpine 4 Technologies Ltd.

Metal Fabrication