Which Link Building Agency Is Best? Top Experts Reviewed

In the crowded industry of SEO link building, it is not the easiest task to pick an agency you can actually rely on. Even though many agencies offer comprehensive solutions for growing brand visibility, you can’t be sure that the results will be long-term, and the growth will be organic and consistent. 

Additionally, it’s crucial to be visible not only to traditional search engines but also to AI-driven platforms. Professional link-building agencies know how to combine strategic expertise with the delivery of relevant, strong backlinks that ensure your brand stays ahead of the competition.

We’ve done thorough research, reviewing the best link-building agencies that deliver sustainable results.

Top Link Building Services for 2026

In 2026, the traditional approach is no longer enough. Modern AI search engines like ChatGPT and Gemini have taken over the industry, and they do not solely rely on backlinks. Unlike traditional algorithms, they not only interpret keywords but also understand context, intent, and user behavior. 

The right partner ensures your brand is both discoverable and trusted by AI-driven platforms, helping you maintain a competitive edge in search rankings.

#1. SayNine

Founded in 2021, SayNine is an off-page SEO agency with a strong focus on strategic link building, targeted guest-posting, and LLM-related SEO. 

Regardless of being in the industry for 5 years, the agency already has 3,000 trusted partners worldwide, has helped more than 500 companies, and has built 40,000+ backlinks. 

Top Services

• SaaS link-building: Relevant SaaS backlinks are provided to improve domain authority. The agency partners with websites that have DR 50+ and over 1,000 monthly visitors, ensuring brands will rank higher.
• Niche Guest posts and GEO optimization: Get mentioned on industry-specific websites through listicles or comparison-style articles. This type of content increases visibility both on AI-powered and traditional search engines.
• Brand mentions: Get your brand mentioned in already existing articles through relevant backlinks to boost authority on Google and AI-driven platforms. 
• Comprehensive SEO services: Full, all-in-one SEO services are provided, including technical audits, content writing, keyword research, and site performance.

Pros

• SayNine ensures providing relevant backlinks from authoritative, high-traffic websites.
• The agency gives a one-year backlink guarantee, ensuring that any lost or removed links from placements are promptly replaced.
• SayNine comes with detailed SEO reporting and provides a customized SEO report, showing progress in domain rating, traffic, and rankings.

Link-building Pricing

SayNine offers flexible pricing plans with the freedom to select a custom option, where you can choose as many backlinks as you need and get a tailored quote.

The fixed packages start at $1,300/mo for 10 backlinks; however, you can take advantage of a test run by paying only $150/per backlink to evaluate the service before purchasing a full package.

#2. Outreach Monks

Outreach Monks is another leading link-building service provider, founded in 2017. It helps businesses get targeted traffic, using white-hat outreach, niche relevance, and open reporting. 

Top Services

• White label link-building: Complete link-building solutions are provided for agencies to deliver under their own name, allowing easy integration into client services. Every campaign relies on white-hat link building; no PBNs or automated systems are used.
• Brand mentions: Get backlinks that include mentions of your brand, improving online visibility in search engines and AI-driven platforms.
• Managed link-building: Comprehensive campaigns handled by experts, combining SaaS-focused backlinks, manual outreach, and white-hat strategies for delivering consistent SEO growth.

Pros

• The clients of Outreach Monks benefit from personalized assistance and quick responsiveness during the link-building process from the very beginning to the end.
• The agency covers everything, from strategy development and manual outreach to content creation, placement, and reporting.

Link-building Pricing

The agency offers a range of pricing plans. Pricing starts at $1,699/mo for 4 backlinks, two of which come from DR 60-69 domains. The plan also covers backlink analysis and a turnaround time of 2-4 weeks.

#3. LinkBuilder.io 

LinkBuilder.io is a UK-based link-building agency that focuses on building contextual backlinks through white hat strategies to help brands improve their rankings in SERPs.

Top Services

• Relationship-based link building: Get backlinks based on relationship development with renowned publishers in your industry. 
• Broken link building: In order to earn backlinks, the team ensures to identify broken links pointing to 404 pages on other sites and replaces them with relevant content. 
• Guest posting: Improved visibility through industry-relevant content on authoritative websites.

Pros

• Their services are positioned to boost visibility in both traditional search and AI-driven platforms by building backlinks that provide trust to modern ranking systems.
• The agency offers full transparency for every backlink they build, providing DR, traffic, anchor texts, and live URLs to ensure both the client and agency teams stay aligned on campaign progress and performance.
• All the provided backlinks are based on hands-on outreach and ethical methods, avoiding automated or low-value tactics.

Link-building Pricing  

LinkBuilder.io offers four pricing plans, starting with $2,999/mo for 8 links, that includes detailed link planning, keyword analysis, and more.

To Sum Up

Building a strong brand can be twice as easy when relying on experts who can handle link-building processes from A-Z. After reviewing each and every capability of the leading agencies, we see that success comes from a combination of strategic planning, strong and relevant backlink delivery, as well as innovative solutions that result in long-term visibility.

While there is no one-size-fits-all option, there is always a right choice. Choose an agency that matches your business objectives and understands your needs the most.