- Searcharoo
- Linkbuilder.io
- Loganix
- Outreach Monks
- Authority Builders
- The HOTH
- FatJoe Blogger Outreach
- We Outreach
- LinkDoctor.io
- Engage a Link Building Agency or an SEO Agency?
Building a strong online presence and ranking on search engines isn’t just about creating great content. It is about earning “referrals” from other websites that can build your website’s trust and authority. That is where link building comes into play. But here is the catch: not all link building is created equal. Finding agencies that specialize in white hat link building—ethical, sustainable strategies that comply with search engine guidelines—can be a real challenge.
This article is here to simplify that process for you. We have carefully researched and compiled a list of the 9 best link building agencies around the world. Whether you are a business owner working to improve your website’s authority or an SEO agency seeking white label link building services, you are in the right place. These agencies are known for ethical practices, impressive track records, and valuable solutions that fit every budget.
1. Searcharoo
Searcharoo is a top rated link-building agency that focuses on ethical, white hat link building practices and a results-driven approach. Unlike many agencies that rely on surface metrics like Domain Authority, Searcharoo emphasizes real traffic value, ensuring backlinks come from sites with proven organic traffic. They also offer a 6-month guarantee on link placements, replacing any that become unavailable.
For SEO agencies, Searcharoo provides white-label link building services with professional reports, making it easy to demonstrate value to clients. Their competitive pricing skips agency markups, saving 30-40% while maintaining quality. Additionally, they offer tailored strategies, hands-on campaign management, and a variety of services like guest posts, niche edits, and digital PR, all designed to deliver sustainable, long-term SEO results.
- Agency Focus: Link building services, content writing services, link and content audit services
- How they vet backlink quality: Based on traffic value. Searcharoo helps you get backlinks from websites that have a minimum of $1,000 in traffic value. This approach focuses on the quality and relevance of the traffic rather than just raw visitor numbers.
- Backlink building strategies: Guest posts, niche edits, PR outreach
- Speciality: Unique backlink quality vetting process
- Backlink prices: Starts from $1067 USD for 5 backlinks (Backlinks are not sold “a la carte”)
- Average cost per backlink: $213 USD
- Domain authority of backlinks: DR30+ to DR60+
- Does the agency offer white label link building: Yes
- Can the client pre-approve links? Yes
- Contact Searcharoo here.
2. Linkbuilder.io
LinkBuilder.io is a premium link building agency that crafts bespoke link-building campaigns tailored to each client’s industry and goals. They stand out by employing over 20 diverse white-hat strategies, such as guest posts, broken link building, and unlinked brand mentions.
They also differentiate themselves by building genuine relationships with publishers to secure high-quality, hard-to-replicate backlinks. Their data-driven approach ensures every link contributes to improved rankings, and they provide transparent, real-time reporting on backlink metrics and campaign progress. With a strong emphasis on measurable results, LinkBuilder.io actively monitors the impact of their efforts to deliver meaningful SEO growth.
- Agency Focus: Link building services only
- How they vet backlink quality: Linkbuilder.io looks into a website’s domain authority and relevance, organic traffic and content quality when choosing websites to get their clients backlinks. This rigorous approach ensures that every backlink contributes positively to the client’s SEO performance and long-term growth.
- Backlink building strategies: Guest posts, niche edits, PR outreach, broken link building, unlinked brand mentions, resource page link building, skyscraper technique, competitor backlink analysis, content marketing, local citations, infographic outreach, scholarship link building, podcast outreach, ego bait (Creating content that highlights influencers or brands, encouraging them to link back.), link reclamation, directory submissions, forum and community engagement, social media amplifications, partnerships.
- Speciality: Diverse strategies used to get high quality backlinks
- Backlink prices: Starts from $2999 USD for 8 backlinks (Backlinks are not sold “a la carte”)
- Average cost per backlink: $375 USD
- Domain authority of backlinks: DR50+ to DR80+
- Does the agency offer white label link building: Yes
- Can the client pre-approve links? Yes
- Contact LinkBuilder.io here.
3. Loganix
While Loganix is more than just a SEO link building agency, it differentiates itself in the link-building space by offering a highly transparent, client-focused approach with guaranteed placements. They allow clients to approve sites before placement, ensuring relevance and quality, and only charge for approved links.
Their services include a wide range of options, such as guest posts, niche edits, authority links, and editorial links, all built on relationships with real, high-traffic websites. Loganix also provides a “Shop the List” feature for DIY clients, enabling them to browse unvetted opportunities and filter by criteria like domain authority and traffic. Additionally, they emphasize quality through strict vetting, U.S. and Canadian writers, and client-ready reporting, making them a reliable partner for scalable, white-hat link-building campaigns.
Is it worth noting that Loganix is also backed by Brian Dean of backlinko?
- Agency Focus: SEO services, PPC services, content writing services, link building services
- How they vet backlink quality: Loganix vets backlink quality by prioritizing websites with strong domain authority, real organic traffic, and topical relevance to the client’s niche. They ensure high-quality content by working with skilled U.S. and Canadian writers or site contributors. Clients have control over the process by approving domains and pages before placement, guaranteeing relevance and quality.
- Backlink building strategies: Guest Posts, Niche Edits, PR Outreach, Authority Links, Editorial Links, Content Marketing, Shop the List.
- Speciality: Quality content written by U.S. & Canadian writers
- Cost per backlink: From $200 USD (For guest posts and niche edits)
- Domain authority of backlinks: DR30+
- Does the agency offer white label link building: Yes
- Can the client pre-approve links? Yes
- Mentioned by Brian Dean of Backlinko.
- Explore link building with Loganix here.
- Book a SEO strategy call with Loganix here.
4. Outreach Monks
One of the more affordable link building agencies in this list, Outreach Monks stands out by offering a highly personalized and scalable approach to link building. They focus on manual outreach to secure high-quality backlinks from niche-relevant authority sites, ensuring relevance and SEO impact.
Their services include guest posting, niche edits, blogger outreach, SaaS-specific link building, and country-specific campaigns, catering to diverse industries and geographic needs. They emphasize transparency with detailed reporting and allow clients to scale campaigns based on their goals. Additionally, their pricing and adaptability to budgets makes them accessible to a wide range of businesses and SEO agencies.
- Agency Focus: Link building services only
- How they vet backlink quality: Outreach Monks ensures backlink quality by focusing on niche-relevant, high-authority websites with strong domain ratings and organic traffic.
- Backlink building strategies: Guest posts, niche edits, blogger outreach, SaaS-specific link building, country-specific campaigns, and local citations
- Speciality: Affordable pricing & niche specific backlinks
- Cost per backlink: From $79 USD
- Domain authority of backlinks: DR20+ to DR70+
- Does the agency offer white label link building: Yes, enquire about white label link building here.
- Can the client pre-approve links? No
- Contact Outreach Monks here.
5. Authority Builders
Authority Builders is another affordable link building agency offering a highly customizable link-building service. They also focus on real websites with genuine organic traffic and strong metrics. They emphasize transparency with detailed month-to-month reporting, provide tailored solutions based on niche, traffic, and budget, and leverage long-standing relationships with webmasters to secure cost-effective, high-quality backlinks. Their “ABC Plus” service includes competitor link analysis, anchor text roadmaps, and discounts on hand-selected links, ensuring a strategic and results-driven approach.
- Agency Focus: Link building and link audit services only
- How they vet backlink quality: Authority Builders focuses on websites with strong domain ratings and organic traffic. They guarantee placing you on websites with at least 1000+ or more website traffic (per month) for their ABC guest post services.
- Backlink building strategies: Guest posts, niche edits, PR outreach
- Speciality: Affordable pricing & portal to choose backlinks
- Backlink prices: Starts from $1000 USD for 6 backlinks (You can buy “a la carte” backlinks if you apply here.)
- Cost per backlink: From $167 USD
- Domain authority of backlinks: DR20+ to DR60+
- Does the agency offer white label link building: Yes
- Can the client pre-approve links? Yes
- Apply to get backlinks from Authority Builders here.
- If you are an SEO agency, claim your 20% discount off all backlinks with Authority Builders here.
6. The HOTH
The best part?
You only pay for what you need. With the slider on their link outreach page, select the number of words for your guest post, select the domain authority and traffic of the website you want a backlink from and check the cost of acquiring the backlink. The higher the domain authority and traffic of the websites you choose, the more you pay.
Apart from link outreach services, The Hoth also offers niche edits also known as link insertions, business listings, content syndication and press releases at affordable prices.
- Agency Focus: Content creation services, link building services, local SEO services.
- How they vet backlink quality: The Hoth vets backlink quality by looking at metrics like domain authority, domain ratings and website traffic.
- Backlink building strategies: Guest posts/link outreach, niche edits/link insertions, business listings, content syndication and press release
- Speciality: Flexibility to choose backlinks based on metrics of choice
- Cost per backlink: From $150 USD
- Domain authority of backlinks: DR20+ to DR50+
- Does the agency offer white label link building: Yes or no?
- Can the client pre-approve links? No
- Get a link from The Hoth here.
7. FatJoe Blogger Outreach
Fat Joe’s blogger outreach service includes genuine, in-content editorial links directly from blog owners, while avoiding private blog networks. They offer guaranteed domain rating and traffic metrics, a money-back guarantee, and a fully transparent dashboard for tracking placements, making their approach highly flexible, reliable and client-focused. Similar to The Hoth, the pricing of FatJoe depends on the domain rating of backlinks you want and starts from $79 USD.
- Agency Focus: Link building services, digital PR services, SEO services, content writing services, design and video services
- How they vet backlink quality: Fat Joe vets backlink quality by checking domain ratings and doing genuine outreach.
- Backlink building strategies: Blogger outreach (guest posts), niche edits, multilingual blogger outreach and infographic outreach.
- Speciality: Affordable pricing & natural link placements
- Cost per backlink: From $79 USD
- Domain authority of backlinks: DR10+ to DR60+
- Does the agency offer white label link building: Yes
- Can the client pre-approve links? No
- Mentioned as top 5 link building agencies in the world by Neil Patel.
- Get a link from FatJoe here.
8. We Outreach
“Get The Backlinks You’d Build Yourself, If Only You Had The Time” screams the tagline of the We Outreach link building agency. We Outreach focuses on delivering premium, highly vetted backlinks that mimic natural links and positively influence search engine algorithms. They emphasize quality over quantity, using a detailed and unique framework to assess link quality. Their framework is based on factors like domain authority, organic traffic, outbound link profiles, and topical relevance. Best of all, their process avoids link farms and prioritizes links from clean, relevant, and authoritative websites.
Additionally, they provide a custom tool for transparent link quality assessment, ensuring their links consistently “move the needle” for SEO while minimizing risks of penalties.
- Agency Focus: Link building services only
- How they vet backlink quality: They use a custom tool for link quality assessment, looking at factors such as website domain authority, website organic traffic, outbound link quality, website relevance and topical focus.
- Backlink building strategies: Guest posts, Competitor backlink analysis, Niche edits.
- Speciality: Custom tool to vet backlink quality & 100% transparency
- Monthly cost: From $2000 USD per month
- Cost per backlink: From $250 USD
- Domain authority of backlinks: Varying
- Does the agency offer white label link building: Yes
- Can the client pre-approve links? No
- Contact We Outreach here.
9. LinkDoctor.io
LinkDoctor focuses on building high-quality, white-hat backlinks tailored to align with clients’ business goals. They emphasize quality over quantity, avoiding spammy or low-value links, and provide risk-free, month-to-month contracts with a link replacement guarantee. Their data-driven approach incorporates modern SEO trends, including AI and machine learning, while prioritizing transparency with regular progress reports. LinkDoctor also has extensive experience in building links for clients in industries such as healthcare, law, e-commerce and real estate.
- Agency Focus: Link building services only.
- How they vet backlink quality: Domain authority & topical relevance
- Backlink building strategies: Not stated
- Speciality: Industry focus & results oriented
- Monthly cost: Not stated
- Cost per backlink: Not stated
- Domain authority of backlinks: Varying
- Does the agency offer white label link building: Yes
- Can the client pre-approve links? Yes
- Mentioned as top 5 link building agencies in the world by Neil Patel.
- Book a call with Link Doctor here.
Choosing the right link-building agency is a critical step toward boosting your website’s authority, rankings, and traffic. Each agency in this list brings a unique approach, ensuring there is a perfect fit for your needs, whether you prioritize customization, quality, or data-driven strategies. Take the time to explore each of these agencies, and make an informed decision to amplify your SEO efforts. The right link building partner could be the game-changer your business needs.
Engage a Link Building Agency or an SEO Agency?
Link building agencies are great if you already have a solid SEO foundation and simply need help acquiring quality backlinks.
However, if you are struggling to rank, unsure about your content strategy, or not seeing consistent traffic from Google, it may be better to engage a full-service SEO agency instead. Because they can help you build a holistic strategy that impacts your rankings — from keyword research and high quality content to technical fixes and link acquisition.
Start with exploring these 11 SEO agencies in Singapore. And find the best SEO partner based on your budget and goals.