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Home Data Annotation Services United States California San Francisco

Top Data Annotation Services in San Francisco

Ratings Updated: June 17, 2026
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1 Leaders 8 Contenders

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9 Companies

Country: United States
State: California
City: San Francisco

List of the Top San Francisco Data Annotation Companies

  • Featured

    What are Featured Providers?

    Mindy Support Logotype

    Mindy Support

    4.8 37 reviews
    Verified
    Undisclosed
    Undisclosed
    1,000 - 9,999
    Serves San Francisco, CA

    Services provided

    35% Data Annotation Services
    35% Customer Service Outsourcing
    30% Generative AI

    Mindy Support is a data annotation services company specializing in AI data labeling and ML data annotation. With a 100% on-time delivery rate, clients appreciate their responsive communication and cost-effectiveness. Reviewers frequently highlight their flexibility and alignment with company values, with 50% noting impressive project management and quality service at a reasonable price.

    See all 37 projects

    Reviews mention Helpful

    Clients consistently noted the helpfulness of Mindy Support's team across various projects. For instance, one client praised their 'amazing customer support' and felt that they were 'always there' for assistance. Another highlighted the team's flexibility and proactive communication, stating they were 'very helpful' in resource planning. Overall, the sentiment regarding helpfulness is overwhelmingly positive, with multiple clients emphasizing the team's responsiveness and commitment to client satisfaction.
    • Customer Support for Interactive Gaming Platform
      5.0 May 10, 2021

      The staff have always been very positive and always ready to help. Even with our more tedious requests, which we have really appreciated. Communicating the limitations of the available agent pool earlier on could have been done, this was cleared up but a bit later in the project than we would have preferred.

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    • LiDAR-Annotation for Autonomous Vehicle Company
      5.0 Mar 18, 2021

      The team really made an effort to meet the required deadlines. Mindy was very helpful in adding more resources to the project when it was needed. Annotation is a quality and effectiveness play, and there is always room for improvement.

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    • Staff Augmentation for Medical Imaging Software Startup
      5.0 Jul 14, 2020

      The support from MindySupport's team was excellent. Communication between our teams was very efficient, with questions being answered timely and clearly. They were very helpful with the long term planning of resources for the completing of multiple partially overlapping projects.

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    • Call Center Services for Beauty Brand
      5.0 Jun 12, 2025

      Mindy Support performs well in project management, as they deliver on time and respond well to our needs. The team is described as very helpful, with a good partnership and flexibility. Mindy Support is very helpful, has a good partnership, and is flexible.

      Read Full Review
    • Cloud Application Tech Support for Social Intranet Platform
      5.0 May 18, 2020

      After training and onboarding, the team began to work really well – professionally, independently and in a client-oriented way. They were very helpful, providing an effective team and helping us to arrange the process much earlier before we expected. Their knowledge of quality assurance processes and maintaining uninterrupted work helped us to set up operations very smoothly and on the high level.

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    Industry Experience

    Mindy Support has garnered positive feedback across various industries, particularly in Beauty, Automotive, eCommerce, and Financial Services. Clients commend their multilingual customer support, operational efficiency, and flexibility, resulting in enhanced customer experience metrics and increased productivity. The overall sentiment is favorable, highlighting their expertise in handling diverse customer needs and their capability to adapt to sector-specific challenges, making them a suitable partner for companies seeking reliable support in these industries.

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    Select Industry to see insights

    Beauty & Cosmetics Automotive eCommerce Manufacturing IT Services Engineering Software Research Arts, entertainment & music Financial services Utilities Gaming Other Industry Construction Healthcare Advertising & marketing Beauty Information technology

    View projects from:

    United States (9) Germany (5) Austria (3) Switzerland (2) Canada (2) Finland (2) England (2) Israel (2) Netherlands (2) France (1) Sweden (1) Portugal (1) Liechtenstein (1) Greece (1)
    1 of 1 San Francisco-based review is 5 stars
    Unknown avg. project cost for Data Annotation Services services in San Francisco

    Data Annotation Services project highlight

    Data Annotation Services for Mapping Company

    4.5 — Mindy Support provides data annotation services for a mapping company. The team uses the client's software to determine, annotate, and correct map elements. Read more
    Read Similar Reviews
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  • Second Talent Logotype

    4.9 25 reviews
    Undisclosed
    Undisclosed
    50 - 249
    San Francisco, CA

    Services provided

    10% Data Annotation Services
    60% IT Staff Augmentation
    30% Employer of Record (EOR) Services

    Second Talent is a recruitment firm specializing in IT staffing and remote engineering support. The company is highly regarded for its structured hiring process and efficient project management, with 100% of reviewers highlighting their reliability and ability to meet deadlines. Clients appreciate their market knowledge and adaptability, though some suggest initial briefings could be more structured.

    See all 25 projects
    6 of 6 reviews are 5 stars
    $10,000 – $49,000 avg. project cost

    Reviewed 6 times in the past 6 months

    In the past six months, client feedback for Second Talent has been overwhelmingly positive. Clients highlighted their effective end-to-end recruitment process, timely communication, and ability to deliver quality candidates quickly, leading to improved project execution and productivity. One client noted, 'Their blend of practical execution and responsive support made the partnership feel unusually smooth.' Areas for improvement mentioned include the desire for a more structured kickoff process and a broader range of senior profiles.
    Read 6 Recent Reviews

    Industry Experience

    Second Talent has effectively served the Information Technology and AI sectors, providing skilled remote engineers and IT staff augmentation. Clients praised their reliability, speedy onboarding processes, and seamless communication. Notable outcomes included a significant reduction in hiring time and improved team productivity. Their subscription model was particularly well-received in various industries, ensuring consistent access to top talent. Overall, the provider demonstrated strong expertise in tech-focused projects, making them an excellent fit for companies requiring agile and efficient engineering support.

    Read All Reviews

    Select Industry to see insights

    Other industries Information technology

    Average Project Cost Breakdown

    $10,000 to $49,000 (1)

    What Clients Have Said

    Clients consistently highlighted Second Talent's competitive pricing and overall value for money. Feedback noted their 'good value for cost' and 'pricing fit our budget.' Additionally, the subscription model was praised for simplifying team expansion and providing predictable costs. Overall, the sentiment was positive, with clients expressing satisfaction with the return on investment through faster hiring processes and enhanced team productivity, indicating that the company delivers strong value relative to its pricing.
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    View projects from:

    New York City, New York (2) San Diego, California (1) Minerva, Ohio (1)
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  • SalesForsaas Logotype

    Not yet reviewed

    $100,000+
    $300+ / hr
    10,000+
    San Francisco, CA

    Services provided

    30% Data Annotation Services
    25% CRM Consulting and SI
    25% Sales Outsourcing +1 service
    20% Generative AI

    Established in 1999, SalesForsaas is a Data Annotation Services company. Their services include Data Annotation Services and CRM consulting and SI.

    Read more
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  • Labelbox Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249
    San Francisco, CA

    Services provided

    60% Data Annotation Services
    20% AI Development
    20% Generative AI

    Labelbox, a Data Annotation Services company, was launched in 2018. The team focuses on Data Annotation Services and Artificial Intelligence.

    Read more
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  • Clarifai, Inc. Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249
    San Francisco, CA

    Services provided

    20% Data Annotation Services
    20% AI Development
    20% API Development +2 services
    20% Content Moderation Services
    20% Generative AI

    Clarifai, Inc., an AI firm, is based in San Francisco, California. Their services include Artificial Intelligence and Content Moderation Services.

    Read more
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  • DataForce Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    250 - 999
    San Francisco, CA

    Services provided

    40% Data Annotation Services
    40% AI Development
    20% Generative AI

    DataForce is an artificial intelligence development company. Founded in 2012, the team focuses on Artificial Intelligence and Data Annotation Services.

    Read more
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  • Stardust AI Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    San Francisco, CA

    Services provided

    60% Data Annotation Services
    40% AI Development

    Founded in 2017, Stardust AI is a Data Annotation Services company. Their team focuses on Data Annotation Services and Artificial Intelligence.

    Read more
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  • Pantima Inc. Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    San Francisco, CA

    Services provided

    60% Data Annotation Services
    40% AI Development

    Located in San Francisco, California and New York City, New York, Pantima Inc. Is a small Data Annotation Services company. Their services include Data Annotation Services and Artificial

    Read more
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  • Dataplatr Logotype

    Not yet reviewed

    $1,000+
    Undisclosed
    10 - 49
    Palo Alto, CA

    Services provided

    10% Data Annotation Services
    25% BI & Big Data Consulting & SI
    20% AI Consulting +5 services
    10% Business Consulting
    10% Cloud Consulting & SI
    10% Generative AI
    10% IT Managed Services
    5% Content Moderation Services

    Dataplatr is a big data company. They are located in Palo Alto, California and have small team of experts. Their services include BI & big data consulting & SI and AI Consulting.

    Read more
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  • OpenCV.ai Logotype

    Not yet reviewed

    $50,000+
    $25 - $49 / hr
    50 - 249
    Palo Alto, CA

    Services provided

    10% Data Annotation Services
    45% AI Consulting
    35% AI Development +1 service
    10% Low/No Code Development

    OpenCV.ai is an AI firm. The company is based in Palo Alto, California. Their services include Artificial Intelligence and AI Consulting.

    Read more
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1 Second Talent

List of the Top 1 San Francisco Data Annotation Companies

  1. Second Talent Logotype

    Second Talent

    Undisclosed
    Undisclosed
    50 - 249
    San Francisco, CA

    Ability to deliver

    23.7/40.0
    18/20 Reviews
    0/10 Clients & Experience
    5.7/10 Market Presence

    Service focus

    10% Data Annotation Services
    90% Other
    View Profile Visit Website
  2. SalesForsaas Logotype

    SalesForsaas

    $100,000+
    $300+ / hr
    10,000+
    San Francisco, CA

    Ability to deliver

    4/40.0
    0/20 Reviews
    0/10 Clients & Experience
    4/10 Market Presence

    Service focus

    30% Data Annotation Services
    70% Other
    View Profile Visit Website
  3. Labelbox Logotype

    Labelbox

    Undisclosed
    Undisclosed
    50 - 249
    San Francisco, CA

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    60% Data Annotation Services
    40% Other
    View Profile Visit Website
  4. Clarifai, Inc. Logotype

    Clarifai, Inc.

    Undisclosed
    Undisclosed
    50 - 249
    San Francisco, CA

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    20% Data Annotation Services
    80% Other
    View Profile Visit Website
  5. DataForce Logotype

    DataForce

    Undisclosed
    Undisclosed
    250 - 999
    San Francisco, CA

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    40% Data Annotation Services
    60% Other
    View Profile Visit Website
  6. Stardust AI Logotype

    Stardust AI

    Undisclosed
    Undisclosed
    10 - 49
    San Francisco, CA

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    60% Data Annotation Services
    40% Other
    View Profile Visit Website
  7. Pantima Inc. Logotype

    Pantima Inc.

    Undisclosed
    Undisclosed
    2 - 9
    San Francisco, CA

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    60% Data Annotation Services
    40% Other
    View Profile Visit Website
  8. Dataplatr Logotype

    Dataplatr

    $1,000+
    Undisclosed
    10 - 49
    Palo Alto, CA

    Ability to deliver

    4.9/40.0
    0/20 Reviews
    0/10 Clients & Experience
    4.9/10 Market Presence

    Service focus

    10% Data Annotation Services
    90% Other
    View Profile Visit Website
  9. OpenCV.ai Logotype

    OpenCV.ai

    $50,000+
    $25 - $49 / hr
    50 - 249
    Palo Alto, CA

    Ability to deliver

    6.5/40.0
    0/20 Reviews
    0.1/10 Clients & Experience
    6.4/10 Market Presence

    Service focus

    10% Data Annotation Services
    90% Other
    View Profile Visit Website

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