Leave a Review For Providers 0 0
  • Post a Project
Home SEM South Korea Seoul

Top Search Engine Marketing Services in Seoul

Ratings Updated: March 24, 2026
We verify reviews and evaluate companies so you can choose with confidence. We may earn a fee for some placements. Learn how Clutch ensures trust
Get Matched

1 Leaders 6 Contenders

7 Companies

Country: South Korea
City: Seoul

List of the Top Seoul SEM Service Providers

  • Featured

    What are Featured Providers?

    SmartSites Logotype

    SmartSites

    4.9 352 reviews
    Premier Verified
    $1,000+
    $100 - $149 / hr
    250 - 999
    Serves Seoul, South Korea

    Services provided

    50% Search Engine Optimization
    30% Pay Per Click
    10% Advertising +1 service
    10% Social Media Marketing

    SmartSites is a comprehensive digital marketing agency specializing in SEO and digital visibility enhancement, consistently praised for its professionalism and responsiveness. With high ratings in client satisfaction, SmartSites has achieved significant outcomes like tripling website traffic and improving ROI for various businesses. Approximately 90% of reviews highlight their effective project management and timely delivery, underscoring their capability in optimizing search performance and enhancing online visibility.

    See all 352 projects

    Reviews mention Detail-oriented

    Clients have consistently praised SmartSites for their detail-oriented approach, highlighting the meticulousness in project execution. For instance, one client noted the 'level of precision and structure' in every report and recommendation, while another commended the 'high level of care and attention to detail' in deliverables. The overall sentiment reflects satisfaction with SmartSites' thoroughness and responsiveness, as they effectively address client needs and proactively manage projects.
    • Web Design, Marketing & SEO for Managed Services Provider
      5.0 Sep 10, 2024

      The team is extremely thorough and efficient. The attention to detail that is provided to my account is impressive. None

      Read Full Review
    • PPC Services for Optometry Center
      5.0 Aug 22, 2024

      David, our PPC analyst at SmartSites, always goes the extra mile. They've created effective campaigns that have boosted our business, and I appreciate their quick responses and attention to detail. Knowledge and attention to detail.

      Read Full Review
    • SEO & Website Optimization for Marketing Agency Broker
      5.0 Aug 20, 2024

      Ryan was incredibly responsive to all my follow-up questions, which gave us a great sense of confidence in their approach. Their attention to detail and commitment to delivering on time has made the entire process smooth and effective.

      Read Full Review
    • PPC Services for Geospatial Hardware & Software Firm
      4.5 Mar 27, 2024

      Issah N was very engaged from the beginning of the project, detail-oriented, and responded quickly to requests and implementations. We're impressed with their responsiveness and ability to meet deadlines.

      Read Full Review
    • PPC Services for Industrial Tool Storage Manufacturer
      5.0 Mar 18, 2024

      Their attention to detail is impressive. Nothing

      Read Full Review
    Read All Reviews
    119 of 135 Search Engine Optimization reviews are 5 stars
    11 new reviews for Search Engine Optimization in past 6 months
    $50,000 – $199,999 avg. project cost

    Search Engine Optimization PROJECT HIGHLIGHT

    SEO & Web Dev for Hospitality & Architectural Design Firm

    5.0 — SmartSites provides SEO and web development services for a hospitality and architectural design firm. The team is also responsible for competitor research, keyword strategy, and technical auditing. Read more
    Read 135 Reviews

    Average Project Cost Breakdown

    $10,000 to $49,000 (88) Less than $10,000 (84) $50,000 to $199,999 (27) $200,000 to $999,999 (6) $1,000,000 to $9,999,999 (3) $10,000,000 + (2)

    What Clients Have Said

    Clients generally perceive SmartSites as offering good value for money, with pricing that fits their budgets. For instance, a marketing manager noted that SmartSites provided excellent service at a reasonable cost, while a CEO highlighted their ability to deliver results, achieving a 25x ROI on ad spend. Overall, feedback reflects satisfaction with the cost-effectiveness of their services, as well as the responsiveness and professionalism of the team.
    Read All Reviews
    $2,600 $3,900 $5,200

    Build a foundation of growth with 💡 SEO services

    We generate millions of visitors and sales monthly through organic search. Read what businesses like you have said in our over 1,000 5 star reviews online. Call ☎️ 201-870-6000 for a free consultation.
    View Packages
    View Profile Visit Website
  • AJ Marketing Logotype

    5.0 33 reviews
    Verified
    $5,000+
    $25 - $49 / hr
    10 - 49
    Seoul, South Korea

    Services provided

    10% Search Engine Optimization
    10% Advertising
    10% Branding +7 services
    10% Content Marketing
    10% Digital Strategy
    10% Media Planning & Buying
    10% Pay Per Click
    10% Public Relations
    10% Social Media Marketing
    10% Video Production

    AJ Marketing is a digital marketing agency specializing in SEO and Search Engine Marketing, offering services such as Online Visibility and Digital Visibility Enhancement. With a notable track record, 100% of reviewers commend their impeccable execution and effective workflow. The agency has significantly increased conversion rates and audience reach, achieving results like a billion impressions and enhanced brand awareness.

    See all 33 projects
    1 of 1 reviews is 5 stars
    Less than $10,000 avg. project cost

    Reviewed 1 time in the past 6 months

    Recent feedback on AJ Marketing highlights their effective collaboration and expertise in influencer partnerships. A client noted significant increases in social media engagement and website checkouts, attributing success to AJ's tailored campaign strategies and strong local connections. The project management was praised for timely delivery and proactive communication. Overall, clients express high satisfaction with AJ Marketing's ability to meet specific brand objectives and adapt to market needs.
    Read 1 Recent Review
    3 of 3 Search Engine Optimization reviews are 5 stars
    $10,000 – $49,000 avg. project cost

    Search Engine Optimization PROJECT HIGHLIGHT

    SEO, PPC & Translation for Content-Sharing Platform

    5.0 — AJ Marketing provided SEO services for a content-sharing platform. Their services included keyword optimization, creating content, writing captions, moderating tags, and reviewing titles. Read more
    Read 3 Reviews

    Industry Experience

    AJ Marketing has demonstrated expertise across diverse industries, including Education, Telecommunications, and Hospitality. Clients in Education praised their influencer marketing strategies that significantly increased traffic and sign-ups, while in Telecommunications, effective influencer activations boosted event visibility. In Hospitality, campaigns targeting Asia showcased their ability to connect with local audiences, driving substantial engagement. Overall, feedback reflects a strong sentiment of satisfaction, highlighting AJ Marketing's responsive communication, creativity, and effective implementation, making them a suitable partner for projects in these sectors.

    Read All Reviews

    Select Industry to see insights

    Consulting Education Telecommunications IT Services Food & Beverages Automotive Wellness & Fitness Hospitality & leisure Media Advertising & marketing Healthcare Gaming Consumer products & services

    Review Rating from Clients

    5.0/5.0

    Quality

    5.0

    Schedule

    5.0

    Cost

    5.0

    Willing to Refer

    5.0

    In Seoul, AJ Marketing is recognized for their expertise in influencer marketing, providing comprehensive influencer selection and strategic consulting. Reviewers highlight their understanding of Korea's market trends and their dedication to client success, ensuring impactful campaigns for international brands.
    Read Local Reviews
    View Profile Visit Website
  • Punch Digital Marketing Logotype

    Not yet reviewed

    Verified
    $5,000+
    $100 - $149 / hr
    2 - 9
    Seoul, South Korea

    Services provided

    20% Search Engine Optimization
    20% Content Marketing
    20% Pay Per Click +3 services
    20% Social Media Marketing
    10% Digital Strategy
    10% Web Development

    Punch Digital Marketing is a Content Marketing company. Established in 2016, the company is based in Seoul, South Korea. Their services include Content Marketing and Pay Per Click.

    Read more
    View Profile Visit Website
  • Bloomstreet, Inc Logotype

    Not yet reviewed

    Verified
    $5,000+
    $100 - $149 / hr
    2 - 9
    MAPO-GU, South Korea

    Services provided

    30% Search Engine Optimization
    20% Conversion Optimization
    20% Digital Strategy +3 services
    10% Content Marketing
    10% Pay Per Click
    10% UX/UI Design

    Bloomstreet, Inc is a SEO agency. Launched in 2014, the company provides Search Engine Optimization and Digital Strategy.

    Read more

    MAPO-GU, South Korea

    A14F MAPOTRAPALACE, MAPO-DAERO 53
    MAPO-GU, South Korea 121-040

    2 - 5

    See All Locations (2)
    View Profile Visit Website

    • Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.

    Get My Matches
  • Inquivix (인퀴빅스) Logotype

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    2 - 9
    Seoul, South Korea

    Services provided

    20% Search Engine Optimization
    20% Conversion Optimization
    20% Pay Per Click +5 services
    20% Social Media Marketing
    5% Content Marketing
    5% Digital Strategy
    5% Email Marketing
    5% Web Design

    Inquivix (인퀴빅스), a Conversion Optimization company, is headquartered in Seoul, South Korea. The team offers Conversion Optimization and Pay Per Click.

    Read more
    View Profile
  • Yello Digital Marketing Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    1,000 - 9,999
    Seoul, South Korea

    Services provided

    10% Search Engine Optimization
    20% Digital Strategy
    20% Media Planning & Buying +4 services
    20% Video Production
    10% Pay Per Click
    10% UX/UI Design
    10% Web Development

    Yello Digital Marketing is a Digital Strategy company. They are based in Seoul, South Korea. Their team provides Digital Strategy and Media Planning & Buying.

    Read more
    View Profile
  • TK101 Global Logotype

    Not yet reviewed

    $5,000+
    $100 - $149 / hr
    50 - 249
    GANGNAM-GU, South Korea

    Services provided

    20% Search Engine Optimization
    20% Mobile App Development
    20% Pay Per Click +2 services
    20% Social Media Marketing
    20% Web Development

    TK101 Global is a social media marketing firm established in 2012. The team offers Social Media Marketing and Search Engine Optimization.

    Read more
    View Profile
  • InterAd Logotype

    Not yet reviewed

    $1,000+
    < $25 / hr
    2 - 9
    Gangnam-gu, South Korea

    Services provided

    50% Search Engine Optimization
    25% Pay Per Click
    25% Social Media Marketing

    InterAd is a small Gangnam-gu, South Korea-based SEO company. The team offers Search Engine Optimization and Pay Per Click.

    Read more
    View Profile

Tell us what you need — we’ll match you with top agencies in minutes.

Get My Matches
tracking image

Why Trust Clutch

At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.

Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.

Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.

We evaluate service providers using a structured methodology that combines:

  • In-depth client interviews and ratings
  • Comprehensive project details
  • Market presence
  • Portfolio examples and industry recognition

This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.

Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.

We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.

Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.

Ability to deliver
Focus
Clutch Leaders Matrix

Rollover to see company insights or click a company below for more details.

1 AJ Marketing

List of the Top 1 Seoul SEM Service Providers

  1. AJ Marketing Logotype

    AJ Marketing

    $5,000+
    $25 - $49 / hr
    10 - 49
    Seoul, South Korea

    Ability to deliver

    35.3/40.0
    17.2/20 Reviews
    10/10 Clients & Experience
    8.1/10 Market Presence

    Service focus

    10% Search Engine Optimization
    10% Pay Per Click
    80% Other
    View Profile Visit Website
  2. Inquivix (인퀴빅스) Logotype

    Inquivix (인퀴빅스)

    $1,000+
    $50 - $99 / hr
    2 - 9
    Seoul, South Korea

    Ability to deliver

    6/40.0
    0/20 Reviews
    0/10 Clients & Experience
    6/10 Market Presence

    Service focus

    20% Search Engine Optimization
    20% Pay Per Click
    60% Other
    View Profile Visit Website
  3. Punch Digital Marketing Logotype

    Punch Digital Marketing

    $5,000+
    $100 - $149 / hr
    2 - 9
    Seoul, South Korea

    Ability to deliver

    5.5/40.0
    0/20 Reviews
    0/10 Clients & Experience
    5.5/10 Market Presence

    Service focus

    20% Search Engine Optimization
    20% Pay Per Click
    60% Other
    View Profile Visit Website
  4. Bloomstreet, Inc Logotype

    Bloomstreet, Inc

    $5,000+
    $100 - $149 / hr
    2 - 9
    MAPO-GU, South Korea

    Ability to deliver

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

    Service focus

    30% Search Engine Optimization
    10% Pay Per Click
    60% Other
    View Profile Visit Website
  5. Yello Digital Marketing Logotype

    Yello Digital Marketing

    Undisclosed
    Undisclosed
    1,000 - 9,999
    Seoul, South Korea

    Ability to deliver

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

    Service focus

    10% Search Engine Optimization
    10% Pay Per Click
    80% Other
    View Profile Visit Website
  6. TK101 Global Logotype

    TK101 Global

    $5,000+
    $100 - $149 / hr
    50 - 249
    GANGNAM-GU, South Korea

    Ability to deliver

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

    Service focus

    20% Search Engine Optimization
    20% Pay Per Click
    60% Other
    View Profile Visit Website
  7. InterAd Logotype

    InterAd

    $1,000+
    < $25 / hr
    2 - 9
    Gangnam-gu, South Korea

    Ability to deliver

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

    Service focus

    50% Search Engine Optimization
    25% Pay Per Click
    25% Other
    View Profile Visit Website

Similar Categories

Related Services

Advertising in Seoul Full Service Digital in Seoul Digital Strategy in Seoul Digital Marketing in Seoul Social Media Marketing in Seoul Content Marketing in Seoul Inbound Marketing in Seoul Mobile & App Marketing in Seoul Event Marketing in Seoul
View More

Get personalized agency matches based on your project goals.