Top 100 Inbound Call Centers in California
The Best of December 2025Looking for a top inbound call center in California?
Inbound call centers can make all the difference to your business.
To assist you in your search for a partner, we’ve compiled this list of the top inbound call centers in California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best California Inbound Call Center Companies
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1$1,000+250 - 999 employeesSan Francisco, CARead More
Martal Group is a Sales Outsourcing company launched in 2009. The midsize team focuses on Sales Outsourcing, Email Marketing, and Call Center Services. The agency is in Oakville, Canada; San Francisco, California and Uniondale, New York.
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BoschIndustries
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2$1,000+50 - 249 employeesLaguna Beach, CALaunched in 2021, LevelUp Leads is a midsize Sales Outsourcing company. Their team specializes in Sales Outsourcing, Email Marketing, and Call Center Services. The firm is in Laguna Beach, California and Laguna Beach, California.Read More
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3$1,000+50 - 249 employeesBerkeley, CARead More
Wing Assistant, a back office outsourcing company, was established in 2018. Their midsize team is located in Berkeley, California. Their services include back office outsourcing, customer service outsourcing, sales outsourcing, call center services, and more.
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4$1,000+10 - 49 employeesLos Angeles, CARead More
Founded in 2016, Cleverly is a marketing agency that offers lead generation and LinkedIn Ads to their clients. Their 50 employees are based out of Los Angeles.
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LeaseLockIndustries
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5$1,000+1,000 - 9,999 employeesEncinitas, CARead More
CC Capital Group is an outsourcing agency based in La Jolla, Calif with a team of 25. Founded in 2012, the company offers direct marketing, business consulting, and HR services. Their direct marketing services are focused on telemarketing, among other forms.
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Xerox CorporationIndustries
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6$1,000+50 - 249 employeesOakland, CARead More
Located in Oakland, California, Telecom, Inc. Is an answering service. The midsize agency was established in 1993. Their services include voice services and non-voice bpo/back office services.
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7$1,000+10 - 49 employeesCarlsbad, CARead More
Reel Axis is a marketing agency based in Carlsbad, Calif., and founded in 2018 with more than 10 employees. They offer marketing strategy, social media marketing, and content marketing solutions for clients ranging from startups to large firms.
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8$1,000+250 - 999 employeesSanta Ana, CARead More
Ansafone is a voice services provider based in Ocala, Fla. with an additional office in Santa Ana, Calif. They were founded in 1970 and have a team of over 250 employees.
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9$1,000+50 - 249 employeesSan Francisco, CARead More
AI Bees is a digital agency in San Francisco. Founded in 2018, they have about 161 employees that serve mostly small-business and midmarket clients in the IT, business, and advertising industries. Services include digital strategy, email marketing, and digital marketing.
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COPADOIndustries
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10$5,000+2 - 9 employeesInglewood, CACX Collective is a small CRM consulting and SI company. They offer CRM consulting and SI, Business Consulting, Call Center Services, Customer Service Outsourcing, and more and were founded in 2016.Read More
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Thrive CausemeticsIndustries
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11$1,000+50 - 249 employeesSan Francisco, CAWrrk is a Customer Service Outsourcing company based in San Francisco, California. Founded in 2016, the midsize team offers Customer Service Outsourcing, Call Center Services, Back Office Outsourcing, and Document Digitization & Management.Read More
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12Undisclosed10 - 49 employeesIrvine, CARead More
Helpt is a Irvine, California-based customer service outsourcing company. The small firm was launched in 2022. Their team offers customer service outsourcing, call center services, and IT staff augmentation.
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13$1,000+50 - 249 employeesSouth San Francisco, CARead More
Brightest Minds is a midsize phone answering service. The South San Francisco, California-based firm was launched in 2017. Their services include voice services, market research, marketing strategy, and social media marketing.
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14Undisclosed50 - 249 employeesSan Diego, CAMango Bibo LLC, a Business Consulting company, is in San Diego, California. The small team offers Business Consulting, Call Center Services, Back Office Outsourcing, Customer Service Outsourcing, and more. The firm was launched in 2023.Read More
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15Undisclosed50 - 249 employeesMarina del Rey, CARead More
Xync Inc. Is a sales outsourcing company. The Marina del Rey, California-based company was founded in 2017. The midsize team offers sales outsourcing, call center services, back office outsourcing, and customer service outsourcing.
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16$1,000+10 - 49 employeesPasadena, CAGlobalityNet Outsourcing and Consulting is a Pasadena, California-based Back Office Outsourcing company. The small team focuses on Back Office Outsourcing, Finance & Accounting Outsourcing (FAO), Logistics & Supply Chain Consulting, and Customer Service Outsourcing and was launched in 2016.Read More
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17$50,000+10,000+ employeesSanta Monica, CATaskUs is a call center company. Founded in 2008, the company is located in Santa Monica, California. Their services include Call Center Services and Back Office Outsourcing.Read More
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18$1,000+50 - 249 employeesDiamond Bar, CAEstablished in 2004, BillingParadise is a Back Office Outsourcing company. The midsize Diamond Bar, California-based team provides Back Office Outsourcing and Call Center Services.Read More
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NextGen HealthcareIndustries
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19$50,000+50 - 249 employeesSan Jose, CASuccessLink Outsourcing, an answering service company, is based in San Jose, California. The company specializes in call center services, back office outsourcing, customer service outsourcing, finance & accounting outsourcing (FAO), and more and has a midsize team.The company was launched in 2024.Read More
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20Undisclosed10 - 49 employeesOakland, CARead More
Numa is an answering service based in Oakland, Calif., and founded in 2016. Their team of fewer than 50 specializes in voice services for clients ranging from small firms to large corporations in the fields of real estate, hospitality, and retail.
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Emblush BeauteIndustries
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21$1,000+2 - 9 employeesManhattan Beach, CARead More
89Bots.com is a Messenger marketing automation studio founded in Los Angeles with no more than 10 professionals. They offer conversion optimization, web development, and AI solutions to small and medium-sized companies alike.
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edTechBaseIndustries
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22Undisclosed2 - 9 employeesRedding, CAFounded in 2023, Virtual Legacy Partner is a Staffing company. Their small team is located in Redding, California. Their services include Staffing, Call Center Services, and Generative AI.Read More
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23Undisclosed50 - 249 employeesSanta Clarita, CARead More
NETbilling is a non-voice bpo/back office services company. Their small team is located in Santa Clarita, California. Their services include non-voice bpo/back office services. The firm was launched in 1998.
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24$1,000+50 - 249 employeesSan Francisco, CAHeadquartered in San Francisco, California, 31West Global Services is a Customer Service Outsourcing company. They specialize in Customer Service Outsourcing and cloud consulting & SI.Read More
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25$1,000+10 - 49 employeesEl Cajon, CARead More
Answer California is a voice support outsourcing firm based in El Cajon, Calif., just outside of San Diego. Founded in 1998, Answer California has just under 13 employees. They exclusively provide voice service outsourcing. Their specific call center services include automatic answering, order processing, and customer service.
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26Undisclosed10 - 49 employeesLos Angeles, CALaunched in 1989, Answering365 is a phone answering service. In Los Angeles, California, the team specializes in Call Center Services and Customer Service Outsourcing.Read More
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Cedars Sinai HospitalIndustries
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27$1,000+50 - 249 employeesLos Angeles, CAZventus is an answering service. The midsize Los Angeles, California-based team specializes in Call Center Services and Sales Outsourcing. The firm was established in 2016.Read More
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28Undisclosed50 - 249 employeesGilroy, CARush Order, a Fulfillment company, was launched in 1989. The company specializes in Fulfillment and Warehousing & Distribution.Read More
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29$1,000+50 - 249 employeesSanta Monica, CACalltastic is a Business Consulting company located in Santa Monica, California. The team specializes in Business Consulting and Call Center Services.Read More
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30$1,000+50 - 249 employeesSan Jose, CARCM Centric is an IT managed services company established in 2016. The company focuses on IT managed services and Call Center Services, and is midsize.Read More
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Frederick Bodie, M.D - DermatologistIndustries
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