"Dividend Kings" are companies that have consistently paid and raised their dividends for at least 50 years in a row. While history doesn't necessarily repeat, the precedent certainly makes it more likely the pattern will continue.
Do your own due diligence. But for investors seeking reliable dividend growers, the following list of Dividend Kings (as at March 10, 2020) might be a helpful start:
TickerNameSectorIndustryDividend YieldMMM3M CompanyIndustrialsIndustrial Conglomerates4.08%ABMABM Industries IncorporatedIndustrialsEnvironmental and Facilities Services2.35%MOAltria GroupConsumer StaplesTobacco8.33%AWRAmerican States Water CompanyUtilitiesWater Utilities1.48%CWTCalifornia Water Service GroupUtilitiesWater Utilities1.63%CINFCincinnati Financial CorporationFinancialsProperty and Casualty Insurance2.37%KOCoca-Cola CompanyConsumer StaplesSoft Drinks3.16%CLColgate-Palmolive CompanyConsumer StaplesHousehold Products2.46%CBSHCommerce BancsharesFinancialsRegional Banks2.06%DOVDover CorporationIndustrialsIndustrial Machinery1.85%EMREmerson Electric Co.IndustrialsElectrical Components and Equipment3.97%FMCBFarmers & Merchants BancorpFinancialsRegional Banks1.87%FRTFederal Realty Investment TrustReal EstateRetail REITs3.48%GPCGenuine Parts CompanyConsumer DiscretionaryDistributors3.69%FULH.B. Fuller CompanyMaterialsSpecialty Chemicals1.80%HRLHormel Foods CorporationConsumer StaplesPackaged Foods and Meats2.12%JNJJohnson & JohnsonHealthcarePharmaceuticals2.79%LANCLancaster Colony CorporationConsumer StaplesPackaged Foods and Meats1.88%LOWLowe's CompaniesConsumer DiscretionaryHome Improvement Retail2.05%NDSNNordson CorporationIndustrialsIndustrial Machinery1.06%NWNNorthwest Natural Holding CompanyUtilitiesGas Utilities2.79%PHParker-Hannifin CorporationIndustrialsIndustrial Machinery1.97%PGProcter & Gamble CompanyConsumer StaplesHousehold Products2.57%SJWSJW GroupUtilitiesWater Utilities1.93%SWKStanley Black & DeckerIndustrialsIndustrial Machinery2.16%SCLStepan CompanyMaterialsSpecialty Chemicals1.38%SYYSysco CorporationConsumer StaplesFood Distributors2.66%TRTootsie Roll IndustriesConsumer StaplesPackaged Foods and Meats1.12%