Shift Supervisor Bilingual Spanish Preferred PLSShift Supervisor Bilingual Spanish PreferredKenosha, WisconsinPerforming responsibilities of a Customer Service Representative and supervising the team’s activities in the absence of the Store Manager, including but not limited to transaction processing, maintenance of cash drawers, and cash handling procedures. Although many of our customers have banking relationships, we believe that our customers use our financial services because they are convenient, transparent, and frequently more affordable than available traditional alternatives.
NewProduction Supervisor-Custom Fabrication Lakeside Manufacturing, Inc.Production Supervisor-Custom Fabricationwest milwaukee, WIThe primary responsibility of this position is to effectively schedule labor and production activities across welding, metal assembly, and wood assembly operations to ensure customer orders ship on time while maximizing efficiency and resource utilization. This hands-on leadership role is responsible for production scheduling, capacity planning, workforce management, quality, safety, and on-time delivery of custom-built products.
2nd Shift Supervisor - Manufacturing Sumitomo Electric Carbide2nd Shift Supervisor - ManufacturingNew Berlin, WisconsinResponsible for effectively supervising, coaching, and developing teams through proactive planning, practical implementation, addressing problems/concerns, and continuous improvement. Read and interpret engineering drawings, blueprints, work orders, and engineering specifications to determine production processes and tolerance limits.
Quality Supervisor, MDR Remediation Katalyst Healthcares & Life SciencesQuality Supervisor, MDR RemediationMundelein, ILPartner with Clinical, Regulatory, and Quality teams to resolve issues and support decision making. " Track and report key performance metrics, including throughput, timeliness, and quality trends.
Production Supervisor 2nd Shift Talent Wave Associates, LLCProduction Supervisor 2nd ShiftPleasant Prairie, WI$80,000–$90,000 / yearProblem-Solving & Improvement: Troubleshoot issues swiftly, collaborate with cross-functional teams for process improvements, and analyze data for operational optimization. As part of our commitment to a fair, consistent, and efficient recruitment process, we may use artificial intelligence (AI) tools to assist in the initial screening of applications submitted through our applicant tracking system.
Banquet Supervisor | Milwaukee Marriott West CSM Lodging Services IncorporatedBanquet Supervisor | Milwaukee Marriott WestWaukesha, WIPart timeRequires ability to work extended hours based on business needs, with physically demanding responsibilities such as walking, standing, carrying, and moving throughout the extended shift. • Meets with client or group contact, and then clearly communicates specific service requirements and client needs to assigned staff for each banquet event.
NewSupervisor, Environmental Health and Safety Brand Industrial Services IncSupervisor, Environmental Health and SafetyWest Allis, WI$43–$58 / hourIf anyone, regardless of whether an existing employee, or anyone else, requests payment of any fee in exchange for being hired into our company, you may confidentially contact our HR Compliance department at hrcompliance@brandsafway.com and provide the name of the individual and any other documentation or proof of such an act. About Us: BrandSafway is a leading global provider of access, specialized services, and forming and shoring solutions to the industrial, commercial and infrastructure markets.
Operations Supervisor - 2Nd Shift Allegion plcOperations Supervisor - 2Nd ShiftGreenfield, WIResponsibilities include: interviewing, hiring, and training employees; planning, assigning, and directing work; appraising performance; rewarding and disciplining employees; addressing complaints and resolving problems; all with the support of the current Shift Supervisor. Additionally, Allegion is proud to be recognized with the 2026 Gallup Exceptional Workplace Award (GEWA) for the third consecutive year, earning distinction in both the employee engagement and strengths categories.
FT Floor Tech Supervisor- Milwaukee WI Marsden Holding LLCFT Floor Tech Supervisor- Milwaukee WIWest Allis, WICleanPower, Marsden Holding Company, is a facility services provider with an unmatched reputation for operational excellence. Must have the ability to use Microsoft programs (Outlook, Excel, Teams, etc.) If no floor or carpet experience, we will train.
FT Floor Tech Supervisor- Milwaukee WI CleanPower LLCFT Floor Tech Supervisor- Milwaukee WIWest Allis, WICleanPower, Marsden Holding Company, is a facility services provider with an unmatched reputation for operational excellence. Must have the ability to use Microsoft programs (Outlook, Excel, Teams, etc.) If no floor or carpet experience, we will train.
Production Supervisor (3rd Shift) PPG Industries IncProduction Supervisor (3rd Shift)Oak Creek, WIThrough leadership in innovation, sustainability and color, PPG helps customers in industrial, transportation, consumer products, and construction markets and aftermarkets to enhance more surfaces in more ways than does any other company. PPG considers several factors in making compensation decisions including, but not limited to, skill sets, experience and training, qualifications and education, licensure and certifications, and other organizational needs.
Supervisor - Paper Packaging Inteplast Group CorpSupervisor - Paper PackagingWaukegan, ILAssist operators in diagnosing and resolving mechanical issues with machinery, ensuring minimal downtime and maintaining production flow. Provide day-to-day supervision and support to machine operators, ensuring machines are running efficiently and production goals are met.
Retail Supervisor - Inventory Retail Services WIS CorporationRetail Supervisor - InventoryGURNEE, Illinois$20–$23 / hourPart timeThis position requires the ability to stand for prolonged periods of time with occasional walking; the ability to use both hands and wrists for repetitive motions; the ability to frequently be in low level positions, such as squatting, kneeling, or crouching; the ability to frequently use a ladder; the ability to lift and carry items up to 25 lbs. Retail, stocking, merchandising, warehouse, customer service, cashier, delivery driver, gamer, athlete, coaches, and general labor experience are all valuable backgrounds for this position.
Dining Services Supervisor Presbyterian HomesDining Services SupervisorLake Forest, IL$22.95–$32.09 / hourPresbyterian Living is an independent, not for profit senior living organization offering a full continuum of care-including independent living, assisted living, skilled nursing, and memory care. If you're someone who enjoys making a difference, building meaningful connections, and contributing to a workplace centered on wellness, independence, joy, and security, you'll feel right at home here.
Warehouse Supervisor- 2nd Shift HH GlobalWarehouse Supervisor- 2nd ShiftKenosha, WIThis includes supervising production, picking, packing, consolidation, and shipping, and coordinating with other departments to support efficient warehouse operations. Collaborate with 1st shift inventory control, production, and shipping teams to resolve discrepancies and improve workflow.
Transportation Supervisor - Zion, WI Sysco CorpTransportation Supervisor - Zion, WIZion, ILCoordinates efforts with the Safety department to aid in training, conducting associate observations, up-dating preferred work methods, conducting accident investigations to determine root causes and routine safety inspections. Our ideal candidate will be currently located within a commutable distance to our Zion, WI Operations Company, and will be able to reliably commute there to successfully supervise the activities associated with the delivery department.
Transportation Supervisor - Racine, WI Sysco CorpTransportation Supervisor - Racine, WIRacine, WICoordinates efforts with the Safety department to aid in training, conducting associate observations, up-dating preferred work methods, conducting accident investigations to determine root causes and routine safety inspections. Our ideal candidate will be currently located within a commutable distance to our Racine, WI Operations Company, and will be able to reliably commute there to successfully supervise the activities associated with the delivery department.
Production Supervisor Plymouth Tube CompanyProduction SupervisorEast Troy, WIBachelor's degree in engineering, Industrial Technology, Manufacturing, or related field with 3+ years of manufacturing leadership experience; ORAssociate degree in a manufacturing-related field with 5+ years of supervisory experience, including experience in a Lean Manufacturing environment; OR5+ years of supervisory or lead experience in a heavy industrial manufacturing. Leadership and team developmentCommunication and employee engagementContinuous improvement and change managementPerformance management and accountabilityProblem-solving and sound decision-makingPlanning, organization, and executionCustomer focus and quality orientationIntegrity, professionalism, and teamwork.
Part-Time Supervisor, Levi's® Outlet, Pleasant Prairie, WI Levi Strauss & CoPart-Time Supervisor, Levi's® Outlet, Pleasant Prairie, WIKenosha, WI$17.50–$29.15 / hourThe amount a particular employee will earn within the wage range will be based on several factors including, but limited to, relevant education, qualifications, experience, skills, seniority, store location, performance, shift, travel requirements, sales or revenue-based metrics, and business needs (LS&Co.) offers a total rewards package that includes competitive pay, incentive plans, and a wide array of benefits designed to help you, and your family stay healthy, meet your financial goals, and balance the demands of your work and personal life. Supervisors contribute as an integral member of the store management team by contributing to the successful implementation of strategies and operational excellence that ensure brand equity, customer satisfaction and financial growth.
Retail Store Supervisor Sunnyside*Retail Store SupervisorBuffalo Grove, IL$22.75–$23.25 / hourBe aware that fraudulent job offers and correspondence may appear legitimate: they may feature a Cresco Labs logo, they may appear to originate from an official-looking email address or web site, or they may be sent by individuals purporting to represent Cresco Labs or an entity which includes the word Cresco Labs in its name. With dozens of locations nationwide, our owned and operated Sunnyside® dispensaries provide a welcoming, positive, judgement-free place to shop for anyone at any point on their cannabis journey.
Maintenance Supervisor | Full Time Life Care Companies LLCMaintenance Supervisor | Full TimeIL$28–$30 / hourThis position is responsible for overseeing and performing maintenance operations, coordinating daily work orders and preventive maintenance activities under the leadership of the facilities management. Minimum 5 years of maintenance experience in healthcare, senior living, assisted living, skilled nursing or a comparable environment is preferred.
Clinical Behavioral Health Supervisor LCSW AscensionClinical Behavioral Health Supervisor LCSWWaukegan, Illinois$77,163.89–$104,397.87 / yearFull timeHow you'll make an impact in this role: Operational Leadership : You manage daily staffing levels, handle admissions, and oversee case management to ensure the program meets financial and clinical targets. Education: High School diploma equivalency with 2 years of cumulative experience OR Associate's degree/Technical degree with 1 year of experience OR 5 years of applicable cumulative job specific experience required.
NewBranch Supervisor, Full Time (Oak Creek) Guardians Credit UnionBranch Supervisor, Full Time (Oak Creek)Oak Creek, WIESSENTIAL FUNCTIONS: Represent the Credit Union to the members in a friendly, positive and professional manner, and provide prompt, efficient, confidential, and accurate service in the processing of transactions over the counter, by phone, and by mail. Handle all monetary transactions for members (e.g., deposits, withdrawals, loan payments, check cashing) and other normal inquiries by members.
Supervisor, Maintenance & Engineering AptarGroup IncSupervisor, Maintenance & EngineeringCary, ILOur innovations transform conventional packaging into advanced dispensing systems, offering solutions such as precise fragrance applications, mess-free ketchup dispensing for kids, and connected technologies that support patients in adhering to their treatments. With manufacturing facilities across North America, Europe, Asia, and South America, and a dedicated team of over 13,000 employees in about 20 countries, Aptar is committed to creating impactful innovations for our customers and their consumers.
Production Supervisor AptarGroup IncProduction SupervisorMukwonago, WIThis role is accountable for Molding Room results related to safety, production outcomes/efficiencies, processing, and adherence to relevant procedures, quality, continuous improvement initiatives, and personnel activities across day and night shifts. With manufacturing facilities across North America, Europe, Asia, and South America, and a dedicated team of over 13,000 employees in about 20 countries, Aptar is committed to creating impactful innovations for our customers and their consumers.
Operations Supervisor Aptive Environmental LLCOperations SupervisorNew Berlin, WI$50,000–$65,000 / yearBy analyzing millions of pest data points across neighborhoods, pest activity, and weather patterns, Aptive tailors treatment plans to help homeowners stay one step ahead. To learn more, visit www.aptivepestcontrol.com or follow Aptive on Facebook (@AptivePestControl), Instagram (@Aptive.
NewLicensed Clinical Social Work Supervisor at Innovative Counseling Partners, PLLC Innovative Counseling Partners LLCLicensed Clinical Social Work Supervisor at Innovative Counseling Partners, PLLCLibertyville, IL$65–$80 / hourPreferred Qualifications:Prior Private Practice clinical experience a plusExperience in Community Mental Health or Behavioral Health Hospital also a plusRegistered with CAQH and has an NPI numberIdeal Candidates Have Formal Clinical Training and Experience in one of the following:Play Therapy and/or Art TherapyDialectical and Behavior Therapy (DBT)Trauma-Focused Cognitive Behavioral Therapy (TF-CBT)EMDR We are currently hiring:Licensed Clinical Social Workers with prior supervisory experience, enjoy growing staff and who have expertise working with adults, families, couples, children AND adolescents.
Entertainment Team Supervisor Walmart IncEntertainment Team SupervisorLake Zurich, IL$21–$34 / hourWhat you'll bringWalk up to 5 miles each day while fulfilling online customer ordersReview customer orders, locate and select merchandise on the salesfloorEnsure customer orders are filled accuratelySmile, greet, and thank customers with a positive attitudeDispense customer orders quickly and accurately in varying weather conditions* For a complete list of duties and responsibilities, please see the actual job description.#storejobsWalmart is committed to maintaining a drug-free workplace and has a no tolerance policy regarding the use of illegal drugs and alcohol on the job. Career areasBrandsResourcesAbout UsMilitaryEntertainment Team SupervisorLake Zurich, ILApply nowEntertainment Team SupervisorLake Zurich, ILApply nowEntertainment Team SupervisorLake Zurich, ILApply nowEntertainment Team SupervisorWM Supercenter #1404820 S Rand RdLake Zurich, IL 60047-2465CP-1404-9046Loading map.
Retail Pharmacy Supervisor - Twin Lakes Advocate Health and Hospitals CorporationRetail Pharmacy Supervisor - Twin LakesTwin Lakes, Wisconsin$63.45–$95.20 / hourProviding care under the names Advocate Health Care in Illinois; Atrium Health in the Carolinas, Georgia and Alabama; and Aurora Health Care in Wisconsin, Advocate Health is a national leader in clinical innovation, health outcomes, consumer experience and value-based care. Headquartered in Charlotte, North Carolina, Advocate Health services nearly 6 million patients and is engaged in hundreds of clinical trials and research studies, with Wake Forest University School of Medicine serving as the academic core of the enterprise.
Production Supervisor (3rd Shift) PPGProduction Supervisor (3rd Shift)Oak Creek, WisconsinThrough leadership in innovation, sustainability and color, PPG helps customers in industrial, transportation, consumer products, and construction markets and aftermarkets to enhance more surfaces in more ways than does any other company. PPG considers several factors in making compensation decisions including, but not limited to, skill sets, experience and training, qualifications and education, licensure and certifications, and other organizational needs.
NewProduction Supervisor - 1st shift Steele Solutions IncProduction Supervisor - 1st shiftSouth Milwaukee, WIResponsibilities include training employees; assigning and directing work; appraising performance; rewarding and disciplining employees; addressing complaints and resolving problems. Assign tasks effectively among department personnel and monitor their performance to ensure efficient operations and adherence to production schedules.
Central Billing Supervisor Lake County CouncilCentral Billing SupervisorWaukegan, ILWhether assuring accessible and effective care, impacting policy, or assessing and monitoring risks, the Lake County Health Department and Community Health Center has been an essential part of the public health system in Lake County for 60 years. We are committed to cultivating an inclusive culture that values diversity of thought and collaboration, enabling each employee to perform at their maximum potential and to more effectively work with clients, patients, and employees.
Supervisor, Machine Shop MetalTek International, Inc.Supervisor, Machine ShopWaukesha, WIMetalTek International is an industry leader providing metal component solutions to customers from around the world with products that reach the depths of the oceans to the depths of space. Our employees are Making A Lasting Difference and enjoy an environment where their efforts are rewarded, continuous improvement is valued, and career growth is encouraged.
Home Team Supervisor Walmart IncHome Team SupervisorAlgonquin, ILWhat you'll bringWalk up to 5 miles each day while fulfilling online customer ordersReview customer orders, locate and select merchandise on the salesfloorEnsure customer orders are filled accuratelySmile, greet, and thank customers with a positive attitudeDispense customer orders quickly and accurately in varying weather conditions* For a complete list of duties and responsibilities, please see the actual job description.#storejobsWalmart is committed to maintaining a drug-free workplace and has a no tolerance policy regarding the use of illegal drugs and alcohol on the job. It''s up to you to keep your aisles neat and clean, work with multiple supervisors and fellow associates, stock shelves, and answer tricky questions -- you may even have to pitch in to help check out customers.
Shift Supervisor Krispy Kreme IncShift SupervisorWest Allis, WIKrispy Kreme operates in more than 35 countries through its unique network of fresh doughnut shops, partnerships with leading retailers, and a rapidly growing Ecommerce and delivery business with more than 14,000 fresh points of access. We partner with Feeding America and Convoy of Hope, who in turn partner with organizations nationwide to distribute donations to people in need through diverse types of programs and services.
Supervisor, Foundry - 3rd Shift MetalTek International, Inc.Supervisor, Foundry - 3rd ShiftWaukesha, WI$74,144–$111,218 / yearAn undergraduate Engineering degree, or a four-year Technical degree is preferred, or the equivalent in Foundry related experience plus coursework. This includes investigation of problems to ensure proper corrective action is implemented to reduce or eliminate non-conforming parts and production interruptions.
On-Call Dining Supervisor (Full Time) Compass Group USA IncOn-Call Dining Supervisor (Full Time)Lake Forest, IL$20–$21 / hourFull-time and part-time positions are offered the following benefits: Retirement Plan, Associate Shopping Program, Health and Wellness Programs, Discount Marketplace, Identify Theft Protection, Pet Insurance, and other voluntary benefits including Critical Illness Insurance, Accident Insurance, Hospital Indemnity Insurance, Legal Services, and Choice Auto and Home Program. With more than 31,000 dedicated team members, including 1,600 registered dietitians and 1,200 executive chefs, we empower and uplift each other by working together, take responsibility for our commitments, and believe in helping one another achieve more together by realizing our unlimited potential.
Claims Supervisor CorVel Enterprise Claims, Inc.Claims SupervisorWaukesha, WIRemote$73,345–$113,247 / yearPart timePay rates are established taking into account the following factors: federal, state, and local minimum wage requirements, the geographic location differential, job-related skills, experience, qualifications, internal employee equity, and market conditions. CorVel, a certified Great Place to Work® Company, is a national provider of industry-leading risk management solutions for the workers’ compensation, auto, health and disability management industries.
IT Support Supervisor VitalsearchgroupIT Support SupervisorKenosha, WisconsinThe IT Support Supervisor will oversee specialists responsible for developing, configuring, and delivering application and end-user training while ensuring employees receive a consistent, professional, and high-quality support experience. This role is ideal for a hands-on leader with strong healthcare IT knowledge, training experience, and the ability to support system stability, data accuracy, and compliance in a fast-paced environment.
Supervisor Clinic Operations - Pediatrics Advocate Aurora Health IncSupervisor Clinic Operations - PediatricsGreenfield, WI$35.50–$53.25 / hourHeadquartered in Charlotte, North Carolina, Advocate Health services nearly 6 million patients and is engaged in hundreds of clinical trials and research studies, with Wake Forest University School of Medicine serving as the academic core of the enterprise. Providing care under the names Advocate Health Care in Illinois; Atrium Health in the Carolinas, Georgia and Alabama; and Aurora Health Care in Wisconsin, Advocate Health is a national leader in clinical innovation, health outcomes, consumer experience and value-based care.
Warranty Administrator Supervisor Fields Auto GroupWarranty Administrator SupervisorLake Bluff, ILFields Land Rover of Lake Bluff is seeking a positive team member to join our dynamic dealership to provide a luxury experience for both our internal and external customers! We have a common purpose to ensure transparency and a collaborative environment where team members are encouraged to express their ideas with a strong belief in promoting from within the organization.
Community Services Representative - Supervisor (Property Tax Listing And Bill Administrator) Waukesha County (WI)Community Services Representative - Supervisor (Property Tax Listing And Bill Administrator)Waukesha, WI$36.85–$51.18 / hourWaukesha County offers a perfect blend of urban and rural living where one can enjoy the benefits of quiet rural lake communities or opt for nearby attractions that the greater Milwaukee area offers including vast beach and park systems, public markets, performing arts, music festivals, and sports including the Milwaukee Admirals, Brewers, Bucks, Wave, Marquette University Golden Eagles and the UW-Milwaukee Panthers Basketball programs. Typical responsibilities include coordinating annual tax billing and related processing, overseeing tax system administration and security access, supervising preparation and maintenance of assessment rolls and legal property descriptions, supporting reporting and compliance activities, training users, and helping resolve title, tax, and property record issues.
Supervisor Clinic Operations - Primary Care Advocate Aurora Health IncSupervisor Clinic Operations - Primary CareMount Pleasant, WI$35.50–$53.25 / hourHeadquartered in Charlotte, North Carolina, Advocate Health services nearly 6 million patients and is engaged in hundreds of clinical trials and research studies, with Wake Forest University School of Medicine serving as the academic core of the enterprise. Providing care under the names Advocate Health Care in Illinois; Atrium Health in the Carolinas, Georgia and Alabama; and Aurora Health Care in Wisconsin, Advocate Health is a national leader in clinical innovation, health outcomes, consumer experience and value-based care.
Community Services Representative - Supervisor Waukesha County WICommunity Services Representative - SupervisorWaukesha, WI$36.85–$51.18 / hourWaukesha County offers a perfect blend of urban and rural living where one can enjoy the benefits of quiet rural lake communities or opt for nearby attractions that the greater Milwaukee area offers including vast beach and park systems, public markets, performing arts, music festivals, and sports including the Milwaukee Admirals, Brewers, Bucks, Wave, Marquette University Golden Eagles and the UW-Milwaukee Panthers Basketball programs. Typical responsibilities include coordinating annual tax billing and related processing, overseeing tax system administration and security access, supervising preparation and maintenance of assessment rolls and legal property descriptions, supporting reporting and compliance activities, training users, and helping resolve title, tax, and property record issues.
Supervisor Facilities - Lock & Door Team FT Day Shift Milwaukee Advocate Aurora Health IncSupervisor Facilities - Lock & Door Team FT Day Shift MilwaukeeOak Creek, WI$38.20–$57.30 / hourProviding care under the names Advocate Health Care in Illinois; Atrium Health in the Carolinas, Georgia and Alabama; and Aurora Health Care in Wisconsin, Advocate Health is a national leader in clinical innovation, health outcomes, consumer experience and value-based care. Headquartered in Charlotte, North Carolina, Advocate Health services nearly 6 million patients and is engaged in hundreds of clinical trials and research studies, with Wake Forest University School of Medicine serving as the academic core of the enterprise.
Housekeeping Supervisor | Milwaukee Marriott West CSM Lodging Services IncorporatedHousekeeping Supervisor | Milwaukee Marriott WestWaukesha, WIPart timeThis position is responsible for the supervision of housekeeping operations and ensures the cleanliness of hotel rooms and public areas, and adheres to health regulations. Effective supervision of assigned staff to ensure achievement of overall financial results, guest satisfaction and positive employee relations.
Hospital Services Supervisor Waste Management IncHospital Services SupervisorRacine, WIWM has the largest disposal network and collection fleet in North America, is the largest recycler of post‑consumer materials and is a leader in beneficial use of landfill gas, with a growing network of renewable natural gas plants and the most landfill gas‑to‑electricity plants in North America. Travels between customer facilities providing on-site placement and collection of waste containers for various WMHS programs and services including, but not limited to Sharps, Rx, Haz, and Document Management through a healthcare facility, as required or requested.
NewSupervisor Food Production - FT 2nd Shift Advocate Aurora Health IncSupervisor Food Production - FT 2nd ShiftAurora, WI$26.55–$39.85 / hourProviding care under the names Advocate Health Care in Illinois; Atrium Health in the Carolinas, Georgia and Alabama; and Aurora Health Care in Wisconsin, Advocate Health is a national leader in clinical innovation, health outcomes, consumer experience and value-based care. Headquartered in Charlotte, North Carolina, Advocate Health services nearly 6 million patients and is engaged in hundreds of clinical trials and research studies, with Wake Forest University School of Medicine serving as the academic core of the enterprise.
Manufacturing Supervisor - Print Division InPro CorporationManufacturing Supervisor - Print DivisionMuskego, WIThis position requires a strong presence on the manufacturing floor and a hands-on leadership approach that builds trust, inspires teams, and reflects a servant leadership philosophy aligned with our company culture. The Manufacturing Supervisor will guide work teams in optimizing workflow, improving productivity through continuous improvement initiatives, and ensuring efficient use of resources.
Supervisor, Mechanic Shop Cox EnterprisesSupervisor, Mechanic ShopCaledonia, WI$67,100–$100,700 / yearCox Automotive employees get to work on iconic consumer brands like Autotrader and Kelley Blue Book and industry-leading dealer-facing companies like vAuto and Manheim, all while enjoying the people-centered atmosphere that is central to our life at Cox. Through groundbreaking technology and a commitment to stellar experiences for drivers and dealers alike, Cox Automotive employees are transforming the way the world buys, owns, sells - or simply uses - cars.