Our Executive Team

A Foundation of Sincerity, Integrity, and Industry Leadership

We are a family founded business with a team that is dedicated to creating the best solutions while taking into account and deeply caring about the long-term impact on our customers, employees, communities and overall environment.

Roy Link — Chairman and Chief Executive Officer. Co-Owner

As the son of Herbert Wolfgang Link, who established the company in 1935, Roy began his career with LINK in 1970. In 1989, Roy was named CEO/President of LINK, and has since worked passionately to elevate the company from its humble roots to the global organization it is today. It has been through his leadership and tremendous dedication, as well as the skill and hard work of the LINK team, that the company has grown to be a global leader in specialty equipment and innovative testing solutions around the world.

For decades, Roy has been heavily involved in supporting local and worldwide engineering communities, as well as participating on and chairing boards of local businesses and industry associations. In addition to numerous accolades, Roy has been awarded the Engineering Society of Detroit’s Humanitarian Award, the organization’s highest engineering honor.

As Chairman and CEO, Roy has started to transition into a role that oversees LINK’s strategic direction, promoting the growth of the company into new and emerging markets.

Roy is a consummate leader, visionary, and entrepreneur, and he takes tremendous pride and enjoyment in the relationships he continues to build with his employees, customers, and partners.

Matthew G. Link — President. Co-Owner

Matt began his career at LINK in 1997 as a Project Coordinator in LINK’s test laboratories, followed by the same role in our design and manufacturing headquarters, and then became the General Manager of LINK Arizona. In 2013, Matt was named President and began overseeing all LINK operations. Matt is dedicated to exceeding customers’ expectations through upholding the highest level of standards.

Matt is focused on aligning and further guiding the talented LINK personnel by ensuring that they leverage one another as well as the great depth of experience that exists across our organization. Creating opportunities for career growth and offering long-term job security are viewed by Matt as critical components in positioning the company as the leading resource in the testing, climatic, and cutting tool industries for generations to come. Ultimately, his vision is to lead a thriving organization that is constantly evolving and finding new ways to deliver ever more value to its customers.

Adam R. Link — Vice President & Managing Director, Plymouth Design & Mfg. Co-Owner

Adam is currently Vice President of Link Group and Managing Director of our manufacturing facility in Plymouth, Michigan. Adam joined LINK in 2008, serving in technical and application roles in both Korea and the United States, as well as overseeing LINK’s China operations for several years. Adam then moved back to the United States, and took on a global responsibility for all technical activities for Link Group.

Adam takes great pride and appreciation in the working relationships he is able to develop with customers, suppliers, and colleagues from all corners of the world. Above all, Adam finds enjoyment and motivation in new and exciting challenges, and the ability to offer highly engineered, customized solutions.

Derek N. Stoneburg — Chief Financial Officer

Established as the CFO of LINK in 2013, Derek oversees all global financial functions which include accounting, financial planning and analysis, tax activities, treasury, and shareholder relations. In addition, Derek supervises all global Information Technology and legal affairs, and also has high engagement in Human Resources.

Derek has a strong focus on strategic planning, budgeting/forecasting, driving profitable growth, and delivering shareholder return. Derek values how LINK conducts business with integrity and unwavering ethical behavior and is motivated to provide a rewarding environment for employees, while driving to deliver the highest value for LINK’s customers.

Tim W. Duncan — Executive Vice President, Strategy and Business Development

Beginning his career with LINK in 1994, Tim is now leading all global test facilities and service activities, all recent acquisitions, and all LINK entities outside of the United States. Tim is focused on customer satisfaction, as well as ensuring that LINK is well-connected to receive customer feedback and understand our customers’ current and future needs. Tim places a great deal of his energy into developing and expanding existing business relationships while overseeing the development and growth of profitable new business opportunities around the globe.

Tim works closely with the executive team on corporate vision and strategy. Tim is diligently engaged with leadership, sales, and testing teams to direct and execute LINK’s business plan. Tim also dedicates his time to helping to develop and build LINK’s organizational culture, values, and reputation.

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Type of TestTest HighlightsEquipment UsedExample Procedures
Chemical TestingMeasurement of copper, asbestos and other elements in brake friction materialsICP-OES / PLMJ2975
Materials TestingPhysical properties including quality control for friction, wear, compressive strain, shear strength, corrosion resistance, swell and growthChase Machine / Compressibility Machine/ Shear Machine / Corrosion Chamber / Environmental Chamber / OvenJ661, ISO 6310, ISO 6311, ISO 6312, ABNT NBR 9301, ABNT NBR 5505, ABNT NBR 5537, ASTM B117
Frequency ResponseComponent Frequency ResponseLaser Vibrometer Test StandSAE J2933, J3001, J2598, L-4375
Structural Fatigue and
Breaking strength, cyclic fatigueServo Hydraulics, Torque FlexJ2995, C419, C441, GMW18022
Caliper FingerprintingCaliper characteristics such as knockback, rollback, fluid displacement, deflection...Caliper Test Bench / Brake DynamometerL-4177, PF.90257
Brake Drag and DTVResidual drag, disc thickness variation, brake feel and vehicle fuel mileageOff Brake Drag Stand / Brake DynamometerJ2923, GMW14926, GMW14351, PF.90257, L-13080
PerformanceHydraulic, air and electric brakes, friction levels, stopping distance, corrosion, cleanability, brake torque variation, rotor cracking, regulation, stability control, coastdownBrake Dynamometer, Model 4000 DASJ2784, J2928 IS026867, GMW14985, PF.90210, PF.90244, L-405, FMVSS 121, FMVSS 122, FMVSS 105, FMVSS 135, FMVSS 126, FMVSS 136, ECE R13H, AMS
WearRotor wear, drum wear, lining wear, DTV, durability, city traffic, suburban trafficBrake Dynamometer, Model 4000 DASJ2707, USCT, L-423, PF.90244, Los Angeles, Detroit, Phoenix, Birmingham, Marquette
NVHBrake squeal during drag and decel events at different temperatures, pressure and torque levelsNVH Brake DynamometerJ2521, L420, 1430, GMW17427, PF. 90244
Brake EmissionsBrake dust particle size, count, concentration and massBrake DynamometerWLTP, CARB, Duty cycle


Type of TestTest HighlightsEquipment UsedExample Procedures
Wheel BearingWater intrusion and durability when exposed to mud and saltBearing Test StandLINK Hub and Bearing, GMW16306, GMW16310
Passenger car, sport/performance and open bed vehicle wheel bearing spallingBearing Test StandGMW16311, GMW16308, GMW16309
Brinelling resistance validates long-term reliability/durabilityBearing Test StandGMW16305
Rotary fatigue lifeRotary Fatigue MachineGMW16325
Wheel HubRotary bending fatigue life characteristicsRotary Fatigue MachineGMW14249
Hub/BearingEvaluate hub and bearing performance, durability, seals and NVH when exposed to extreme environmental effects such as temperature and mud/salt solutionBearing Test Stand/Rotary FatigueTIP-000037A, LINK Hub and Bearing, SAE J1095, LINK Impact
Hub FatigueHub fatigue using biaxial loadingBiaxial Test StandSAE J2562


Type of TestTest HighlightsEquipment UsedExample Procedures
ChemicalEvaluates filiform corrosion on painted aluminum wheels and painted aluminum trimICP-OESASTM E3061
Wheel Corrosion and CoatingsEvaluates filiform corrosion, tape adhesion, degree of rusting on painted aluminum wheels and painted aluminum trimCorrosion ChamberSAE J2635, ASTM B368, ISO 9227,
ISO 2409, ASTM D3599,
ABNT NBR 11003, ASTM D610,
ASTM D1654
Wheel FatigueLoad simulation test of aluminum alloy wheelsBiaxialBMW QV36026, SAE J2562, FORD
L-307, GMW14340
Dynamic Cornering Fatigue and Dynamic Radial Fatigue - Steel wheelsEccentric Mass and RadialABNT NBR 6750
Rotational fatigue, Radial load fatigue and biaxial load fatigue of steel and aluminum wheelsEccentric Mass, Radial and BiaxialABNT NBR 6751
Dynamic Cornering Fatigue and Dynamic Radial Fatigue and Impact resistance of temporary use and normal highway use aluminum wheelsEccentric Mass, Radial and Drop TestABNT NBR 6752
Wheel Radial FatigueRadialGMW14909
Wheel ImpactWheel Inboard Rim Flange Vertical ImpactDrop TestGMW15321
Wheel radial impactDrop TestCETP 04.04-L300
Wheel Lateral ImpactDrop TestGMW14910, SAE J175
Wheel StiffnessFrequency Response Function (FRF)Frequency ResponseGMW14876
Deformation of the wheelServo HydraulicsJ2315
Center cap heat
Center Cap deformation under elevated temperature conditionsBench TestBrake Heat Center Cap


Type of TestTest HighlightsEquipment UsedExample Procedures
Parking ForcesAllows proper sizing of power steering componentsForce and MotionLINK Parking Forces
Tire FootprintDetermines the contact patch geometryForce and MotionTire Footprint
Tire Modeling
Determine tire inertia which is then used Ftire and other models and simulationsInertia MachineLINK Tire Inertial Properties
On-center parking effort test for Ftire inputForce and MotionSWP
Determine static stiffness (X, Y, Z, Alpha) for Ftire inputStatic Stiffness MachineSAE Static Stiffness
Determine how the tire envelopes an obstacleCleat MachineJ2731
Measure the forces and moments generated at a high frequency response spindle when the tire impacts a cleatCleat MachineJ2730
Braking and Cornering PerformanceDetermine the straight line braking performance of a tireForce and MotionJ2673
Determine the free rolling cornering properties of a tireForce and MotionSAE TIME, J1987, SWP
Measure the combined cornering and braking performance of a tireForce and MotionJ2675
Tire StiffnessMeasure rolling vertical stiffness of a tire at speedRolling Vertical Stiffness
Rolling ResistanceMeasure tire rolling resistance using a drumForce and Motion, Rolling ResistanceJ1269, J2452
Tire WearAssess tire wear in the labForce and MotionLINK Wear Test
Tire NVHTest tire sizzle, cornering noise, pass-by noise, steering wheel dither, freeze crack impacts, high speed uniformity and imbalance sensitivityForce and Motion, Dynamometer, Model 4000 DASNoise, Vibration, Harshness