Lang Consulting GmbH logo

Lang Consulting GmbH

4.9 (298 Verified Google Reviews)

Agency Headquarters

161, Merzhauser Straße, Unterwiehre-Süd, Wiehre, Freiburg im Breisgau, Baden-Württemberg, 79100, Deutschland

Lang Consulting GmbH is a premier digital marketing agency dedicated to driving measurable growth and maximizing return on ad spend (ROAS) through high-performance advertising strategies. As a certified Google Partner, the agency occupies an elite tier of marketing service providers, possessing direct access to advanced Google training, exclusive beta features, and dedicated product support. This partnership ensures that every client campaign is managed using the latest industry innovations and adherence to Google’s stringent best-practice standards. The agency’s core expertise lies in the strategic management of the entire Google Marketing Platform. From high-intent Search Network campaigns and visually compelling Display ads to high-conversion YouTube Video sequences and complex Shopping architectures for e-commerce, Lang Consulting GmbH crafts bespoke solutions tailored to specific business objectives. Their team of certified specialists leverages deep technical knowledge to navigate the complexities of the Google Ads auction, ensuring optimal bidding strategies and high-quality scores that reduce cost-per-click while increasing lead quality. Beyond execution, Lang Consulting GmbH distinguishes itself through a rigorous, data-centric methodology. By integrating advanced Google Analytics (GA4) tracking and custom Looker Studio reporting, the agency provides clients with absolute transparency regarding campaign performance. Every decision is underpinned by empirical data, allowing for continuous iterative testing and conversion rate optimization (CRO). This holistic approach ensures that digital ecosystems are not only driving traffic but are optimized to convert that traffic into loyal customers. Partnering with Lang Consulting GmbH means gaining a strategic ally that bridges the gap between complex technology and business results. Whether the goal is local lead generation or international brand scaling, the agency utilizes its status as a Google Partner to provide a competitive edge in an increasingly crowded digital landscape, delivering scalable, sustainable, and transparent growth.

Featured Client Reviews

S
Spaghet ti
★ 5

"We have been working with Lang Consulting GmbH for several months now and are very satisfied with the collaboration overall. From the very beginning, we felt that our project was being taken seriously and that a "standard roadmap" wasn't simply being applied. I would particularly like to emphasize the structured approach and the clear strategies, which were individually tailored to our company. Communication is reliable and professional. Inquiries are answered promptly, and we receive regular updates on ongoing campaigns. This has given us complete transparency regarding budgets, measures, and results at all times. This has provided us with a great deal of confidence. The content also demonstrates the expertise in e-commerce and performance marketing. Our advertising campaigns were optimized step by step, the online store was analyzed, and concrete improvements were suggested. We were able to see initial successes after only a short time – especially a better conversion rate and significantly increased visibility. Of course, the process requires patience and a certain willingness to invest, but if you are open to optimization and implement the recommended measures, the collaboration can definitely deliver added value. Of course, the process requires patience and a certain willingness to invest, but if you are open to optimization and implement the recommended measures, the collaboration can definitely be beneficial. Overall, we feel well looked after and can recommend Lang Consulting GmbH based on our previous experience."

A
Ari An
★ 5

"My online shop has grown tremendously thanks to the marketing support! We have a very experienced contact person who has already managed many online shops with over €1 million in annual revenue, and thankfully, he's finally helped us reach that milestone. Considering where we were two years ago, it's truly incredible—we've achieved 150% annual growth! A full 5 stars!"

M
Mitarbeiter Tobio
★ 1

"Our review is based on our experience with this company. In our opinion, the services provided did not meet our expectations, either in terms of quality or quantity. Several errors were only corrected after repeated notifications and with considerable delay. These included a simple typo on the homepage. After the changes were made, we found the website navigation confusing, illogical, and partially incorrect. Furthermore, content and graphics were published that had neither been coordinated with us nor approved by us beforehand, even though they had a direct impact on our website. Some of the SEO texts described products that we do not carry. In our view, these texts were therefore not a good fit for our offerings. Due to these issues, we had to invest a significant amount of time reviewing the services, requesting corrections, and ensuring their implementation. At the same time, we considered the contractual costs to be high. Unfortunately, we could not identify any discernible added economic value or improvement compared to the previous year. Overall, the collaboration did not meet our expectations, and we felt compelled to terminate the contract prematurely."

A
ATACA The Brand Against Racism
★ 1

"STAY AWAY from this "AGENCY"!! They want over €15,000 from me for DOING NOTHING!! I made the mistake of booking this "agency" and terminated the contract without notice after one month because the promised "service" never materialized. The contract is for six months at €2,500 net + 19% VAT, which is €2,975 per month, or €15,000 net + 19% VAT. During an initial "free consultation," they promise you all sorts of things, especially high five-figure revenues, and they sugarcoat everything: shop optimization, marketing strategies, blah blah blah. But if you fall for it, you always have to pay, even if your revenue is €0 (zero euros), like it was for me with ATACA Fashion. Don't be lured in with any fancy promises!! They only had good people in the area of ​​baiting; everything else was terrible! I paid €2,970 for the first month but had zero sales. After five weeks, the shop still wasn't finished. Of the 56 items, only 34 were available, and some were duplicates. An advertisement was created with incorrect text. When I needed support for Shopify (which was absolutely essential for me as a layperson), it was either late or nonexistent. I often felt abandoned, and almost €3,000 a month is far too much for that! The payment processing via Shopify was also set up incorrectly with the wrong PayPal email address, and one customer abandoned their business. Since I cancelled after one month, NO services were provided from that point on. They are STILL demanding money for the remaining 5 months of the contract, and not a small amount – over €15,000 plus interest, lawyers, etc. – for doing NOTHING. They've hired lawyers and the matter is going to court! This is not how marketing should work. They promised sales, and now we're facing lawyers and court cases! For me, this "agency" is the absolute worst and a total rip-off. If you want to save yourself a lot of trouble, find a reputable company!"

M
Michaela Becker
★ 5

"The comprehensive marketing concept for my online shop has been incredibly successful. From the very first contact with this company, I had a consistently positive feeling, as I've worked with many other companies in the past that unfortunately didn't keep their word. Here, it's the complete opposite, and it's clearly noticeable. You're listened to, you receive attention, and ultimately, the collaboration is more than profitable."

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