Top 100 Call Center Services in California
The Best of December 2025Looking for a top voice service and call center company in California?
Voice services companies provide value to your company: automating your client communication allows your company the flexibility to devote resources to core firm-building activities.
To assist you in your search for a partner, we’ve compiled this list of the top voice and call center services in California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best California Voice Services Providers
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$1,000+250 - 999 employeesHatboro, PARead More
HelpSquad, LLC is a midsize in Quakertown, Pennsylvania and Hatboro, Pennsylvania. They specialize in and were established in 2011.
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$1,000+1,000 - 9,999 employeesChicago, ILEstablished in 2017, Hugo Inc. Is a Customer Service Outsourcing company. The agency specializes in Customer Service Outsourcing, Call Center Services, Back Office Outsourcing, Content Moderation Services, and more and has a large team. The agency is in Chicago, Illinois and Lagos, Nigeria.Read More
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$1,000+250 - 999 employeesOrlando, FLRead More
Answering service company XACT was founded in 1998. Their midsize team is in Orlando, Florida and Unity, Maine. XACT focuses on Call Center Services, Customer Service Outsourcing, Sales Outsourcing, Back Office Outsourcing, and more.
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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$10,000+250 - 999 employeesSimi Valley, CASales Outsourcing company Beyond Codes Inc. Was launched in 2008. Headquartered in Simi Valley, California; Hammersmith, England; Burnaby, Canada and Panchkula, India, their midsize team focuses on Sales Outsourcing, Demand Generation Marketing, Account-Based Marketing, Email Marketing, and more.Read More
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EXLIndustries
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4Undisclosed1,000 - 9,999 employeesLos Angeles, CARead More
Callbox is a Sales Outsourcing company. The Los Angeles, California-based firm was founded in 2004. The large team focuses on Sales Outsourcing, Customer Service Outsourcing, Call Center Services, and Back Office Outsourcing.
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Alima TechnologiesIndustries
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5$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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6$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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7$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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8$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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9$1,000+50 - 249 employeesRiverbank, CARead More
TeleContact is an outsourced telemarketing solutions company headquartered in Riverbank, Calif. with another office in Modesto, Calif. The company was founded in 1994 and now employs a team of around 50 that is entirely dedicated to voice services.
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Wells FargoIndustries
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10Undisclosed1,000 - 9,999 employeesSacramento, CAHeadquartered in Sacramento, California, MyOutDesk is a Back Office Outsourcing company. The large company was founded in 2008. Their services include Back Office Outsourcing, Customer Service Outsourcing, Sales Outsourcing, and Finance & Accounting Outsourcing (FAO).Read More
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11$5,000+10 - 49 employeesMenlo Park, CARead More
Rising Tides, an Email Marketing company, was established in 2024. They are headquartered in Menlo Park, California and have a small team. Their services include Email Marketing, Sales Outsourcing, Content Marketing, Social Media Marketing, and more.
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12$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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13$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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14$5,000+2 - 9 employeesSanta Monica, CARead More
310 Creative Inc. is a Santa Monica, Calif.-based marketing agency. Founded in 2003, their team of fewer than 10 offers marketing strategy, web design, digital strategy, and conversion optimization services.
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Universal MusicIndustries
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15$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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16$5,000+10 - 49 employeesSan Francisco, CARead More
Green Leads LLC is a telephone answering service located in Hampstead, New Hampshire. The agency offers voice services, email marketing, and content marketing and has a small team.The agency was founded in 2007.
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17$1,000+250 - 999 employeesNewport Beach, CARead More
In Las Vegas, Nevada, Insurance Telemarketer is a small non-voice bpo/back office services and phone answering service. The team focuses on non-voice bpo/back office services and voice services.
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18$10,000+2 - 9 employeesTruckee, CAHeadquartered in NORTHSTAR, California, Hello Outreach is a digital strategy and email marketing company. The company provides digital strategy and email marketing and is small.The company was founded in 2017.Read More
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19$1,000+2 - 9 employeesLos Angeles, CAEstablished in 2015, ThinkAlike Media is an email marketing company. Their small team is located in Los Angeles, California. Their services include email marketing, sales outsourcing, demand generation marketing, public relations, and more.Read More
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20$1,000+10 - 49 employeesLos Angeles, CASales Outsourcing company Outbound System is located in Los Angeles, California. The small firm was launched in 2020. Their team provides Sales Outsourcing, Email Marketing, Social Media Marketing, and Call Center Services.Read More
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21$5,000+10 - 49 employeesLos Angeles, CASmogu.Studio is a small sales outsourcing company. Based in Tel Aviv-Yafo, Israel, the agency was founded in 2022. Their team specializes in sales outsourcing, market research, and IT strategy consulting.Read More
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22Undisclosed50 - 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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23$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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24Undisclosed50 - 249 employeesSan Francisco, CADemand Inc., a market research company, was founded in 2017. Their midsize team is headquartered in San Francisco, California and provides market research, sales outsourcing, digital strategy, email marketing, and more.Read More
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25$5,000+10 - 49 employeesSan Diego, CAVideo production agency NANOBOT Group is in San Diego, California and Tallinn, Estonia. The small team provides Video Production, Digital Strategy, Email Marketing, Search Engine Optimization, and more and was established in 2010.Read More
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26$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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27Undisclosed50 - 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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28$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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29$1,000+250 - 999 employeesSan Francisco, CARead More
DataBees is a market research company established in 2017. They are based in San Francisco, California and have a midsize team. The firm offers market research, sales outsourcing, digital strategy, and CRM consulting and SI.
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30$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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Check out a Call Centers in California with the most new reviews in the past 12 months.
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