Top 100 Call Center Services in California

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Top 100 Call Center Services in California

The Best of July 2026

Looking 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. 

Jump to Most Reviewed Companies

List of the Best California Voice Services Providers

  • 241
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Burlingame, CA
    EFlexervices, Inc., a call center company, was launched in 2001. The firm specializes in Call Center Services and Customer Service Outsourcing.
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  • 242
    (2 Reviews) 4.5

    Timeliness

    4.5

    Service Excellence

    4.8

    Value

    4.3

    Would Recommend

    5.0
    Undisclosed
    2 - 9 employees
    Mill Valley, CA
    Established in 2024, Fluents.ai is a phone answering service. The company focuses on Call Center Services, AI Agents, IT staff augmentation, AI Consulting, and more and has a small team. The company is located in Mill Valley, California.
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    Industries

  • 243
    (0 Reviews)

    Not yet reviewed.

    $10,000+
    2 - 9 employees
    San Francisco, CA
    Moulton Digital is a social media marketing agency. They focus on Social Media Marketing and Content Marketing and were established in 2016.
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  • 244
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Irvine, CA
    Accumulated, Inc. Is a small Application Management & Support company founded in 2023. Their team focuses on Application Management & Support and Marketing Strategy.
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    Industries

  • 245
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    10 - 49 employees
    San Francisco, CA
    HireAthena is an Accounting company. They are located in San Francisco, California and have small team. Their services include Accounting and Call Center Services.
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  • 246
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    250 - 999 employees
    Los Angeles, CA
    Market Research company Plaza Research was launched in 1982. The company offers Market Research and Call Center Services.
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  • 247
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    250 - 999 employees
    San Francisco, CA
    Demandbase, a branding firm, is headquartered in San Francisco, California and St Albans, England. They focus on Branding and Marketing Strategy.
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    Industries

  • 248
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    250 - 999 employees
    San Mateo, CA
    BrightEdge is a SEO company. Launched in 2007, the firm is in San Mateo, California. Their team provides Search Engine Optimization and Content Marketing.
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  • 249
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Torrance, CA
    Walker Advertising is a media planning & buying agency. The midsize Torrance, California-based team focuses on Media Planning & Buying and Call Center Services. The firm was established in 1984.
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  • 250
    (1 Reviews) 4.5

    Timeliness

    4.0

    Service Excellence

    4.5

    Value

    4.5

    Would Recommend

    5.0
    Undisclosed
    1,000 - 9,999 employees
    Culver City, CA

    GeBBS Healthcare Solutions, a call center service, is in Culver City, California. The large team provides Call Center Services, Customer Service Outsourcing, and Back Office Outsourcing and was established in 2005.

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  • 251
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    Tiburon, CA
    Tiburon Media Group, a PPC company, was launched in 2023. The team specializes in Pay Per Click and Sales Outsourcing.
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  • 252
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Berkeley, CA
    Launched in 1979, Direct Line Tele Response is a call center. The midsize team offers Call Center Services and Customer Service Outsourcing.
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    Industries

  • 253
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    1,000 - 9,999 employees
    Lake Forest, CA
    Imagenet LLC is a Back Office Outsourcing company. The team specializes in Back Office Outsourcing and Customer Service Outsourcing and is located in Tampa, Florida and Lake Forest, California.
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    Industries

  • 254
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    50 - 249 employees
    Foster City, CA
    FunnL, a Sales Outsourcing and Account-Based Marketing company, is located in Foster City, California and Hyderabad, India. Their services include Sales Outsourcing and Account-Based Marketing.
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    Industries

  • 255
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    Visalia, CA
    Acclaim Credit Technologies, an answering service company, is located in Visalia, California. The team focuses on Call Center Services.
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  • 256
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Livermore, CA
    Back Office Outsourcing company A&H Billing Specialties is based in Livermore, California. They offer Back Office Outsourcing and Sales Outsourcing and were launched in 1999.
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  • 257
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Bakersfield, CA
    Central Valley Search Partners, LLC is a Finance & Accounting Outsourcing (FAO) company. Their services include Finance & Accounting Outsourcing (FAO).
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  • 258
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    Glendale, CA
    Reliable Translations, Inc., a small Translation company, is headquartered in Glendale, California. The team provides Translation and Call Center Services.
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  • 259
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    Los Angeles, CA
    Web Leads Inc is a small Advertising company. They specialize in Advertising and Mobile App Development and were established in 2010.
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  • 260
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    Los Angeles, CA
    Optimal Fusion is an Email Marketing company. Launched in 1996, the agency is based in Los Angeles, California. Their services include Email Marketing and Advertising.
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  • 261
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    50 - 249 employees
    Los Angeles, CA
    Business Consulting company SD&A Teleservices is based in Los Angeles, California. Their services include Business Consulting and Call Center Services.
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  • 262
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Santa Barbara, CA
    Invoca, an Advertising company, is headquartered in Santa Barbara, California. The team offers Advertising and Call Center Services.
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  • 263
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Redwood City, CA
    Cyara is an user experience agency. The Redwood City, California-based firm was launched in 2006. Their services include UX/UI Design and Artificial Intelligence.
    Read More
  • 264
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    San Diego, CA
    Established in 2024, Starry Solutions is a phone answering service. The agency offers Call Center Services.
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    Industries

  • 265
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    Freelancer employees
    Newport Beach, CA
    American Harvest Group is a Sales Outsourcing company. The team focuses on Sales Outsourcing and is in Newport Beach, California.
    Read More
  • 266
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Brisbane, CA
    VOX Network Solutions is a software development firm. The team focuses on Custom Software Development and Customer Service Outsourcing and is located in Brisbane, California.
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  • 267
    (0 Reviews)

    Not yet reviewed.

    $10,000+
    10 - 49 employees
    Los Angeles, CA
    Launched in 2024, Customer First Solutions is a call center company. The small team focuses on Call Center Services and Customer Service Outsourcing.
    Read More

    Industries

  • 268
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    2 - 9 employees
    Santa Clarita, CA
    After Hours Line, a call center company, is in Santa Clarita, California. The team specializes in Call Center Services and AI Agents.
    Read More
  • 269
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    10 - 49 employees
    Fresno, CA
    Launched in 2015, Xobee Networks is a small call center in Fresno, California. Their team specializes in Call Center Services and cloud consulting & SI.
    Read More
  • 270
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    50 - 249 employees
    Calabasas, CA
    Davis Research is a midsize Calabasas, California-based Market Research company. Their services include Market Research and Call Center Services.
    Read More
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