2025 Taichung's Top 10 SEO Companies Recommended | Comparing SEO Vendors

dateSep 08, 2025
updateSep 08, 2025
authorFlyseed
2025 Taichung's Top 10 SEO Companies Recommended | Comparing SEO Vendors
Image Source: Canva
How should businesses in Taichung choose an SEO company? We've evaluated Taichung SEO companies, evaluating them based on factors such as company registrat

Pre-analysis instructions

  • Taichung SEO companies with a company address in Taichung or offices in Taichung (companies with unified numbers).
  • All information is obtained from online sources, including information from the Ministry of Commerce, official websites, and 104 Job Bank. No undisclosed business information (such as quotes or processes) is involved.
  • Taichung SEO companies should be in business for at least 5 years and have more than 10 employees (as much as possible) to avoid pitfalls.
  • Exclude companies that do not provide SEO services but have good SEO rankings (design companies, online courses).
  • The list of Taichung SEO companies is ranked based on the keyword "SEO".
  • Analyze the official website traffic of these companies to see if you can create traffic yourself.
  • Analyze the success stories of Taichung SEO companies to see if the listed customer results are really good.
  • The data analyzed using third-party tools is estimated and for reference only.
  • The order of introduction of Taichung SEO companies is not superior or inferior, and the ranking is for reference only.
  • We have tried our best to analyze the data objectively, but some subjective opinions are inevitable, so please forgive us.
  • Your company is not listed because it is not ranked high, or it is not a company or has no address.

    [Extended reading: Recommended Top 10 SEO Companies in Taiwan ]

    Directly look at the analysis summary report of Taichung SEO Company


1. Da Vinci Digital Technology Co., Ltd.

Da Vinci Digital Technologies official website
  • Address: 11F-1, No. 787, Zhongming South Road, South District, Taichung City
  • Successful cases: Wuguang, iKara, Shihlin Electric, Wang Kele Japanese... (Official website provides 60 successful cases)
  • Success Case Website: https://www.da-vinci.com.tw/tw/case
  • Founded: 2005
  • Capital: 2,000,000 yuan
  • Number of employees: 35
  • Organic traffic (monthly): 22,000 visitors per month (according to ahrefs)
  • Business projects: website design, SEO keyword ranking, ADS paid advertising, customer opportunity search
  • Web Design: Yes, self-developed custom and template websites
  • Free health check: Yes
  • Website health check: The "SEO Optimization Services" page on the website mentions website status analysis and health check services.
  • Architecture optimization: Yes
  • Article written by: Yes
  • External connection: Yes
  • Service type (consultant/performance): Consultant, performance
  • Phone link / Official line / Email link


Company Introduction

Da Vinci was founded in 2005 and has been a Taichung SEO company for over 20 years. They often rank on the first page for "SEO". They also rank service keywords including "SEO", "website design", "EDM", and "website hosting" on the first page, indicating that they have strong ranking capabilities and can rank even in high competition.


SEO capability analysis

We help clients build "high-ranking websites," and after testing, we received a very high score (80-90), indicating our ability to build high-ranking websites. After structured data analysis and SEO syntax testing, our websites all conform to the SEO framework. We also help clients with website health checks, article writing, and external link building. We are a company with the best integration of websites and SEO, and should be the leading SEO company in Taichung. Our official website also has many knowledge-based articles, which is the most informative in the evaluation.

The performance can reach more than 90 points

Da Vinci's website psi score


SEO Case Study

Da Vinci Digital Technology boasts a cumulative 60 successful SEO cases, the most of any company analyzed. This demonstrates its extensive practical experience and strong execution capabilities in the SEO field. Not only can it effectively boost client websites' search rankings and traffic, but it also boasts the ability to serve diverse industries and businesses of all sizes, developing flexible and effective optimization strategies tailored to their needs. Overall, this company demonstrates considerable market competitiveness and overall trustworthiness.


2. JIANGNENG DIGITAL MARKETING CO., LTD.

Will be able to digital marketing company official website
  • Address: Room A2, 15F, No. 51, Section 2, Gongyi Road, Nantun District, Taichung City (Taichung Office)
  • Successful Cases: GOGOCHILL Fun Bar, Longshanlin Hotel…
  • Success Case Study URL: https://www.sonar-inc.com/success-case/ (16 success cases available on the official website)
  • Founded: 2009
  • Capital: 2,000,000 yuan
  • Number of employees: 40
  • Organic traffic (monthly): 4,200 visitors per month (Ahrefs data)
  • Business items: website services, SEO services, full-page promotion services, training courses, consulting services
  • Web design: Yes, Wordpress website
  • Free health check: Yes
  • Architecture optimization: Yes
  • Article written by: Yes
  • External link building: The website does not mention
  • Service Type (Consultant/Performance): Consultant


Company Introduction

Jiangneng Digital Marketing is a Taipei company, but I saw their Taichung office, so I included it in the comparison. Founded by the well-known teacher Lian Qiyou, Jiangneng Digital Marketing focuses on search, and their website uses WordPress as a ranking site. They provide training courses and consulting services, and are a long-established marketing company.


SEO capability analysis

In addition to providing SEO services, we also help clients build websites using WordPress. The company's official website is also built using WordPress. We also provide training services, full-page promotion services, and audio and video optimization. WordPress has many plug-in resources that can be used for SEO, and website performance also requires plug-in optimization. In the case studies, we helped clients write articles and external links. After testing, the overall performance of the website architecture was found to be average.

PSI performance test falls in the middle
Digital marketing PSI performance


SEO Case Study

Jiangneng Digital Marketing Co., Ltd. boasts 16 successful SEO cases. While this number is relatively small, it still demonstrates considerable SEO expertise. This company likely possesses expertise in specific fields or industries, providing effective SEO services to clients. This company possesses a solid foundation of experience, and several of these successful cases have proven to be highly effective.


3. Weihong Technology Co., Ltd.

Weihong Technology Official Website
  • Address: 8F, No. 252, Section 2, Chongde Road, Beitun District, Taichung City (Taichung Office)
  • Successful Cases: There are no SEO success cases on the official website, only APP and website design cases
  • Success Cases Website: https://www.winho.com.tw/ (No SEO success cases provided)
  • Founded: 2013
  • Capital: 10,300,000 yuan
  • Number of employees: 130
  • Organic traffic (monthly): 902 visitors per month (Ahrefs data)
  • Business projects: Digital integrated marketing, SEO search engine optimization, website design, social media marketing
  • Web design: Yes, self-developed website
  • Free health checkup: There is a health checkup, but it does not mention whether there is a "free health checkup"
  • Architecture optimization: Yes
  • Article written by: AI generated
  • External connection: Yes
  • Service Type (Consultant/Performance): Consultant


Company Introduction

Weihong is a well-established marketing company in the market. They offer a wide range of marketing plans and are often mentioned in the SEO services section. They primarily target B2B clients and utilize a lot of international marketing technology in website development.


SEO capability analysis

Because there are no successful case studies, we used website design case studies for testing. The website architecture was good after the test and was at a medium level. However, because there were no case studies, we could only evaluate the official website. There were about 30 articles shared, which may have focused more on B2B, so there were no obvious marketing articles.

PSI performance test falls in the middle
Weihong website PSI test


SEO Case Study

Weihong Technology Co., Ltd. does not provide any SEO success case studies. This may indicate that the company has no public SEO case studies. The reason is unclear. For clients seeking SEO services, this lack of public case studies makes it difficult to assess their capabilities and experience. Interested clients are advised to contact them to learn more about their expertise and practical experience.


4. Ouye Digital Information Co., Ltd.

allmarketing's website
  • Address: 9F-11, No. 262, Section 2, Henan Road, Xitun District, Taichung City
  • Success Stories: Only website design success stories, no SEO success stories
  • Success Case Study URL: https://www.allmarketing.com.tw/ (Official website, no SEO success cases provided)
  • Founded: 2009
  • Capital: 5,000,000 yuan
  • Number of employees: 40
  • Official website organic traffic (monthly traffic): 149 people per month (ahrefs data)
  • Business projects: website production and design, Internet marketing, system integration and maintenance, multimedia technology integration, system development
  • Web design: Yes
  • Free health check: No
  • Architecture optimization: Yes
  • Article written by: Yes
  • External link building: Not mentioned on the website
  • Service Type (Consultant/Performance): Consultant


Company Introduction

Ouye Company provides a variety of digital services to help you optimize your online marketing and make your products and services more visible. We also handle system integration and maintenance to ensure the smooth operation of your digital platform. If you need a website, whether it's a new design or a redesign of an existing one, we can handle it all. Furthermore, we can develop customized programs based on your specific needs, creating tailored solutions for you to make your digital business more efficient.


SEO capability analysis

Ouyi Company provides web design, architecture optimization, and link optimization services. Content writing is assisted by AI, but there is no free health check or success case information. The website architecture can only be tested on the official website and client websites. The official website architecture is low-level, while the client's is medium-level. Because there are no SEO success cases, it is impossible to know too many details. The official website itself has little traffic, so the information is unclear.

PSI performance test score
PSI test of allmarketing


SEO Case Study

Ouyi Digital Information Co., Ltd. does not provide SEO success case studies, which, similar to the situation with Weihong Technology, suggests that the company may not have publicly available SEO case studies. This is a particularly important indicator for clients evaluating SEO services. Without publicly available case studies, it's difficult to effectively verify the company's practical SEO experience and effectiveness. Interested parties are advised to further understand the company's core services and technical advantages.


5. Arnold Marketing Planning Co., Ltd.

arno official website
  • Address: 3F-3, No. 137, Section 1, Huamei West Street, West District, Taichung City
  • Successful Cases: Zhiguang Education Group, Caiyi Furniture, Dongxing Pawnshop
  • Success Cases Website: https://www.arno.tw/ (3 success cases are listed on the homepage)
  • Founded: 2016
  • Capital: 1,000,000 yuan
  • Number of employees: 7
  • Official website organic traffic (monthly traffic): 58 people per month (ahrefs data)
  • Business items: SEO, keyword advertising operations
  • Web Design: None
  • Free health check: Yes
  • Architecture optimization: There is mention of website structure optimization
  • Article writing: Unsure, not mentioned
  • External link establishment: No explicit mention of "external link establishment"
  • Service Type (Consultant/Performance): Consultant


Company Introduction

Arnold Marketing provides a variety of online marketing services, mainly helping companies increase their online exposure and customer inquiries. Through search engine optimization (SEO), website content can naturally rank at the top of search engines such as Google, attracting more potential customers.

SEO capability analysis

Arnold Marketing's official website doesn't have much traffic, so its capabilities are unclear. However, Dongxing Pawnshop is definitely a success story, with a large output of articles. Both Arnold and Dongxing Pawnshop use WordPress to build their websites, both have SEO plug-ins, and their architecture is relatively inefficient. The official website has approximately 50-60 articles, all of which are formal SEO operations.

PSI performance test score
Arno Psi Performance Test

SEO Case Study

Arnold Marketing & Planning Co., Ltd. has three successful SEO cases, a relatively small number that may indicate limited experience in the field. However, despite the limited number of cases, it at least demonstrates its ability to complete a range of SEO projects. If considering working with them, it's recommended to delve deeper into their SEO details, operational strategies, and client feedback to assess the quality and potential of their SEO services.


6. Wangou Network Technology Co., Ltd.

iwangoweb official website
  • Address: No. 6-8, Lane 50, Baoqing Street, Xitun District, Taichung City (Headquarters in Kaohsiung, office in Taichung)
  • Successful Cases: Xinxiang Psychiatric Clinic, Chiayi Yushan Pawnshop...
  • Success Cases Website: https://www.iwangoweb.com/work/ (34 success cases are available)
  • Founded: 2018
  • Capital: 2,000,000 yuan
  • Number of employees: 15
  • Official website organic traffic (monthly traffic): 759 visits per month (ahrefs data)
  • Business projects: SEO optimization, web design, keyword advertising, online marketing, and self-media platforms
  • Web design: Yes
  • Free health check: Yes
  • Architecture optimization: Yes
  • Article written by: Yes
  • External connection: None
  • Service Type (Consultant/Performance): Performance


Company Introduction

Wangou provides one-stop internet marketing services, including website design, SEO optimization, Google keyword advertising and word-of-mouth marketing, to help companies increase their online exposure and enhance their brand image.


SEO capability analysis

It provides quite a lot of successful cases. After architecture analysis, the architecture is medium (around 50). They all use WordPress + writing articles to perform SEO. The proportion of external links is also appropriate. Wangou Company is good at executing regional keywords, especially pawnshops and clinics.

PSI performance test results
iwangoweb's psi effectiveness test


SEO Case Study

Wangou Network Technology Co., Ltd. boasts 34 successful SEO cases, which ranks above average in this analysis, demonstrating its considerable experience and expertise in SEO. Wangou has a strong track record in pawnshops and clinics, as can be seen on their website, which often include a region and keyword, demonstrating their expertise in regional keywords.


7. Oken Information Marketing Co., Ltd.

Oken Information Marketing Official Website
  • Address: 14F-1, No. 716, Zhongzheng Road, Zhonghe District, New Taipei City
  • Success Stories: No SEO success story units provided
  • Success Cases Website: https://www.digimarket.com.tw/ (No SEO success cases provided)
  • Founded: 2016
  • Capital: 1,000,000 yuan
  • Number of employees: 11
  • Official website organic traffic (monthly traffic): 0 visitors per month (Ahrefs data is for reference only)
  • Business projects: website design, SEO keyword optimization, social media management, keyword advertising operation
  • Web design: Yes
  • Free health check: Yes
  • Architecture optimization: Yes
  • Article written by: Yes
  • External connection: None


Company Introduction

Oken provides a wide range of online marketing services, from building professional websites and conducting search engine optimization (SEO) to implementing content marketing and search engine marketing, helping clients increase their online exposure and business development. The company also offers collaborative website projects and specializes in marketing within the German B2B industrial market.


SEO capability analysis

Because there are no successful SEO cases, we use official websites and website design cases for testing. The architecture score is low. Because there are no successful cases, we can only observe the official website, which has 20 articles. They tend to focus on the latest news rather than SEO logic. The official website currently does not have much traffic, so it is difficult to judge its SEO capabilities in terms of architecture, content, and links.

Website architecture performance test
Website performance testing


SEO Case Study

Oken Information Marketing Co., Ltd. has not publicly released any SEO success stories, and the SEO services listed on its website do not describe specific results or experiences. When selecting an SEO provider, without reference cases, clients cannot assess their professional capabilities and effectiveness based on past results, requiring them to conduct additional background checks and risk assessments. Since we cannot fully understand their actual SEO strategies and results, we recommend conducting a more in-depth review and confirmation with the company before engaging with them.


8. Chuanliu Information Co., Ltd.

web500-web official website
  • Address: 12F-9, No. 925, Section 4, Taiwan Boulevard, Xitun District, Taichung City
  • Success Stories: No SEO success story units provided
  • Success Cases Website: https://web5000.com.tw/ (No SEO success cases provided)
  • Founded: 2007
  • Capital: 28,000,000 yuan
  • Number of employees: 10 (104 Job Bank)
  • Official website organic traffic (monthly traffic): 2 visitors per month (Ahrefs data is for reference only)
  • Business projects: web design, SEO ranking, RWD responsive web design, App design and production, online marketing
  • Web design: Yes
  • Free health check: No
  • Architecture optimization: Yes
  • Article written by: None
  • External connection: None
  • Service Type (Consultant/Performance): Consultant


Company Introduction

The company mainly provides one-stop online marketing services, including website construction and search engine optimization, content marketing article writing, professional Google advertising, as well as image design and exposure on high-traffic platforms. It customizes solutions for customers and provides quarterly reports so that customers can keep abreast of marketing results at any time.

SEO capability analysis

The official website has low traffic and is a one-page website. One-page websites cannot be ranked for SEO because there are no successful SEO cases and there is no reference on the official website. The PSI of one-page websites is not a reference. In addition, I have not seen any articles, so I cannot analyze its practical SEO capabilities.

PSI Test Results (One-page website)
web500-web Test PSI Performance


SEO Case Study

Chuanliu Information Co., Ltd. does not provide SEO case studies. Like other companies that don't publicly disclose their success stories, this indicates that their SEO experience may not be publicly available or showcased. Clients should consider this as a key factor in their evaluations and proactively inquire about the team's professional background, service processes, and any undisclosed case studies. Without these examples, we cannot review the effectiveness of these client cases.


9. Alio Network Information Co., Ltd.

ileo official website
  • Address: 18F-1, No. 566-1, Section 2, Wenxin Road, Hecheng Village, Xitun District, Taichung City
  • Successful Cases: "Website Design Cases" There are no successful SEO cases for clients, but there is a ranking case for a physician column.
  • Success Case Study Website: https://www.ileo.com.tw/ (No success cases are available on the official website)
  • Founded: 2019
  • Capital: 1,000,000 yuan
  • Number of employees: The specific number of employees is not clearly listed in public information
  • Official website organic traffic (monthly traffic): 618 visits per month (Ahrefs data for reference only)
  • Business projects: website construction, SEO services, restaurant reservation system
  • Web design: Yes
  • Architecture optimization: Yes
  • Article written by: None
  • External connection: Yes
  • Service Type (Consultant/Performance): Consultant


Company Introduction

The company mainly provides a variety of website design services, from website style planning and visual design to the construction of back-end program management systems, as well as customized services such as online financial flows and restaurant reservation systems. It also provides hosting and regular security scans to ensure that customers' websites operate smoothly and securely.


SEO capability analysis

The official website's architecture is average, around 60 points. The random test of customer design cases is around 50 points. Since there are no successful SEO cases, we can only see the SEO techniques from more than ten articles on the official website. It is considered to be average. Due to the lack of actual case sharing, it is difficult to judge its SEO capabilities.

Website performance test results
ileo official website PSI test


SEO Case Study

Alio Internet Information Co., Ltd. does not provide any SEO success cases, and its SEO services lack practical case studies. For clients seeking professional SEO services, choosing a company without public case studies presents a high degree of uncertainty, and they need to evaluate the SEO company's professional capabilities through other means. Without case studies, it is impossible to review the client's keyword performance.


10. Taiwan Langfeng International Enterprise Co., Ltd. (Wanzhihui)

geniushub-web official website
  • Address: 20F, No. 186, Shizheng North 7th Road, Xitun District, Taichung City
  • Successful Cases: Wifi-Mi, White Salon, Jiecheng Exquisite Moving
  • Success Cases: https://geniushub.cc/cases/ (3 successful cases available on the official website)
  • Founded: March 19, 2015
  • Capital: 12,000,000 yuan
  • Number of employees: 22
  • Organic traffic (monthly traffic): 18,433 visitors per month (Ahrefs data)
  • Business projects: SEO ranking, Google advertising
  • Web Design: None
  • Architecture optimization: Yes
  • Article written by: Yes
  • External connection: Yes
  • Service Type (Consultant/Performance): Consultant


Company Introduction

Wanzhihui provides digital marketing services, including Google keyword advertising, search engine optimization, website design, and social media marketing on Facebook, Instagram, and LinkedIn, to help businesses increase online exposure and business opportunities.

SEO capability analysis

There is no website design service. The official website uses WordPress to perform SEO. The official website's architecture performance is only in the 40s. The case studies are the websites of other web design companies. Both cases also lack an article system, so the techniques are not clear. However, judging from the practices of the official website, it is a formal SEO method. There are not many cases for analysis, so it is impossible to confirm too many details.

Website performance test results
geniushub PSI performance test


SEO Case Study

Taiwan Langfeng International Enterprise Co., Ltd. has three SEO success stories. Similar to Arnold Marketing Planning, this number is relatively small. Analyzing these three success stories, the monthly traffic is not high, which suggests that this is a newly launched website. The official website itself has many high-traffic articles, such as "Canva Tutorial" and "FB Posts." Judging from the articles, this is a formal SEO approach.

Taichung SEO Company Comparison Chart

company Web Design Website Performance Architecture Optimization Article Writing Link Optimization Number of successful cases
da Vinci Independent development high V V V 60
will be able WordPress middle V V - 16
Weihong Independent development middle V V V
Ouyang Independent development Low V V -
Arnold Low V 3
Play Structure WordPress Low V V 34
Oaken Independent development Low V V
River One-page middle V
Elio Independent development middle V V
Langfeng International Low V V V 3

in conclusion

In Taichung, there are relatively many SEO companies offering website development services. Compared to Taipei-based SEO optimization companies (such as Awoo, Jike Data, and Welly), their service offerings differ slightly. This can be advantageous for SEO companies, as optimizing website architecture is a crucial aspect of SEO. From a website performance perspective, Da Vinci Digital Technology's website architecture and performance excel, with both its own website and client portfolios displaying a well-organized and fast loading speed. Companies with mid-range performance include Jiangneng, Weiheng, Ailiou, and Chuanliu.
By analyzing the basic information of Taichung SEO companies, including their official websites, successful cases, and client websites, and deconstructing their structure, content, links, and SEO traces, we can analyze each company's practices. However, only half of the companies provide SEO success cases, with Da Vinci being the best, providing 60 SEO success cases. Because other SEO companies do not provide enough cases, it is difficult to objectively evaluate their actual effectiveness and ability to bring traffic to clients. The above analysis is for reference only. In fact, it is more accurate to ask about the relevant services of various SEO companies in Taichung in person.
(This article is owned by Darrick, and reproduction of pictures and text is prohibited)
I like to explore, often immerse myself in new things, and always hope to give you the most appropriate solution.

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