Dutch link-building and digital PR agency with a Shanghai office and DrSmile case study
About Seeders
Seeders is a search marketing agency founded in 2012 in Zwolle, the Netherlands. It began as a small Dutch firm focused on transparent authority marketing and now has offices in Zwolle, Antwerp, Düsseldorf, Barcelona, Lyon, 's-Hertogenbosch, Warsaw, Shanghai, Hong Kong, Kigali and Ikast. Its Shanghai office is the reason it appears here as a Chinese agency. Dennis Akkerman joined as a junior online marketer in 2014 and became sole owner and CEO by 2019. He leads more than 100 specialists (some listings give 50 to 249 employees). The agency has worked for more than 750 clients.
Link earning is the centre of its SEO offer. The five-step process starts with a review of the existing backlink profile, then a gap analysis against main competitors across keywords, content, technical SEO and links using Ahrefs, Semrush, Moz and Majestic. Outreach follows through guest articles, digital PR and broken link building, with a monthly report on links gained, the authority of linking sites and ranking effects. Seeders uses white-hat methods only and avoids private blog networks. It has more than 50 link specialists and a network of over 560,000 domains. Alongside this it offers international and local SEO, content localisation, enterprise and white-label SEO, paid search, and marketing on Chinese platforms such as Zhihu, Redbook, WeChat, Douyin and Weibo. Its local SEO page covers Google Business Profile details, review responses and consistent business listings.
Its dental evidence is strong for an international agency. DrSmile, an invisible aligner provider in eight European countries, used Seeders for a one-year link programme after struggling to keep link quality consistent across markets. The team built separate strategies per country, pursued links only from authoritative medical sites, intervened early in Sweden and Italy, and moved budget towards better-performing markets. The programme brought 60% growth in organic impressions, 70% growth in non-branded organic traffic and an 18-point rise in Domain Rating. Other health cases include Lasikistanbul, an eye clinic, and Meditech, with 112% organic traffic growth.
The case studies point to multi-country dental brands, aligner companies and clinic groups seeking international patients, though 80% of its clients are small businesses. It is rated 4.6 on Clutch from 17 reviews. Reviewers often call the team timely, flexible and communicative and praise its link building and cross-market reach. A few asked for reporting that is clearer for non-marketers, and one wanted more flexible contract terms.
The minimum project is $1,000, hourly rates run $100 to $149, link building packages cost $1,175 to $6,575 a month and digital PR packages $2,050 to $6,150 a month. Recognition includes 87th place on the Financial Times 1000 list, two Deloitte Technology Fast50 listings and the Emerce 100.
Seeders' Dental SEO Page
Seeders at a Glance
| Founded | 2012 |
|---|---|
| Team size | 100+ specialists (some listings say 50-249 employees) |
| Headquarters | Zwolle, Overijssel, Netherlands |
| Other offices | Antwerp, Düsseldorf, Barcelona, Lyon, 's-Hertogenbosch, Warsaw, Shanghai, Hong Kong, Kigali, Ikast |
| Leadership | Dennis Akkerman (CEO and owner) |
| Languages | English, Dutch, French, German, Italian, Spanish, Danish, Chinese |
| Pricing | Minimum project $1,000+; $100-149/hr; link building packages $1,175, $2,475 and $6,575 per month; digital PR packages $2,050, $3,050 and $6,150 per month; most projects under $10,000. |
| Contracts & reporting | Monthly reports showing backlinks acquired, linking-site authority and ranking impact. One Clutch reviewer requested more flexible terms such as monthly cancellation with a three-month notice period. |
| Tools & partnerships | Ahrefs; Semrush; Moz; Majestic; Google Partner; Channable partner |
Dental Marketing Services
- Link building from medical and health websites
- digital PR
- international and multi-market SEO
- local SEO (Google Business Profile, citations, review responses)
- SEO gap analysis
- technical and on-site SEO
- content localisation
- paid search
- monthly backlink and ranking reporting
Practice Types They Work With
- Orthodontics (clear aligners)
- multi-country dental brands
Dental Clients & Results
- DrSmile: 60% growth in organic impressions, 70% growth in non-branded organic traffic and an 18-point Domain Rating increase across eight European markets (one-year link building programme)
- Meditech: 112% organic traffic growth (SEA and SEO)
Dental Practices They Have Worked With
- DrSmile
Why Dentists Choose Seeders
- Link building is the core skill
- 16 verified client reviews
- Digital PR used to earn links
- Projects from US$1,000
- Largest reviewed SEO team in Shanghai on Clutch
Key Strengths
- Updates links after a site migration so clinics keep their authority
- Runs an SEO gap analysis against competing practices before link campaigns
- Earns links for practice sites through digital PR in news media and broken link building
- Sends practices monthly reports on new backlinks, their authority and ranking impact
Awards & Recognition
- Financial Times FT1000 Europe's fastest-growing companies (#87)
- Deloitte Technology Fast50 (two consecutive years)
- Emerce 100
- Top 250 Growth Companies Game Changer
How the DSA Score Breaks Down
Points earned: 32.8 of 100 (profile 41 × 0.8 + client feedback 0). DSA Score: 87/100
Where Seeders Is Listed
Questions Dentists Ask About Seeders
Has Seeders done SEO for a dental brand?
Yes. It ran a one-year link building programme for DrSmile, an invisible aligner provider in eight European countries. The programme brought 60% more organic impressions and 70% more non-branded organic traffic.
What kind of links does Seeders build for medical clients?
For DrSmile it targeted authoritative medical websites only, since trust signals matter in health categories. It uses white-hat methods and avoids private blog networks.
Is Seeders really a Chinese agency?
It was founded in 2012 in Zwolle in the Netherlands and has its headquarters there. Shanghai and Hong Kong are among its offices, and it offers marketing on Chinese platforms such as Zhihu, WeChat and Douyin.
What does link building cost?
Link building packages cost $1,175, $2,475 and $6,575 per month, with a $1,000 minimum project. Hourly rates are $100 to $149.
How is progress reported?
Clients receive a monthly report covering the number of backlinks gained, the authority of linking sites and the effect on rankings. Links and rankings are monitored continuously between reports.
What do clients say about Seeders?
Clutch shows 4.6 from 17 reviews, with timeliness, flexibility and communication mentioned most. A few reviewers asked for simpler reporting and more flexible contract terms.
Reviews of Seeders
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