Lang Consulting GmbH is a German limited liability company operating in the business services sector. The company likely provides professional consulting services to businesses and organizations, offering expertise and advisory support across various operational areas. As a GmbH entity, it operates under German corporate law and serves clients seeking specialized business guidance and solutions.
Lang Consulting GmbH has a positive customer experience.
Lang Consulting GmbH receives a generally positive reception from its clients, with many praising the company's competent and professional staff. Reviewers highlight the effective communication and structured collaboration, often noting significant improvements in their online marketing results within weeks.
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Customers express satisfaction with the team's ability to deliver tangible outcomes, such as increased revenue from marketing strategies. However, some negative feedback emerges regarding aggressive sales tactics, with a few consumers feeling overwhelmed by persistent calls from the company. Additionally, there are doubts about the authenticity of the overwhelmingly positive reviews, leading to skepticism among some clients. Overall, while many appreciate the quality of service and results, concerns about sales pressure and trustworthiness linger.
Each source counts by its number of reviews. Only reviews written by people are scored.
Rating, volume, share of the score, six-month trend and fake-review risk for each source
Source
Rating
Reviews
Weight
6-mo
Fake risk
★
Trustpilot
Imported Trustpilot reviews
4.2
85
100%
+0.5
● Medium
4.2 / 5 overall
=
85 reviews across 1 scored source
How fake risk works ⓘ
Reputation trend
Monthly average rating from reviews written by people · latest review Nov 2025.
Last 3 months
4.3▲ 0.5
12-month avg
4.0
All-time
4.2
Category avg
4.2
Monthly averageCategory average
Monthly average rating and review count
Month
Average
Reviews
Dec 24
2.0
3
Jan 25
5.0
1
Feb 25
—
0
Mar 25
—
0
Apr 25
—
0
May 25
4.2
5
Jun 25
4.0
10
Jul 25
4.0
8
Aug 25
3.0
4
Sep 25
4.6
20
Oct 25
4.5
4
Nov 25
2.3
3
What people praise & complain about
Share of positive (4–5★) and negative (1–2★) reviews mentioning each topic · based on the 85 most recent reviews.
Top praiseof 69 positive reviews
Website & app3%
2 mentions
“Sehr gute Zusammenarbeit mit sehr regelmäßigem Kontakt”
On “Website & app” · Jul 24, 2025
Top complaintsof 16 negative reviews
Fake13%
2 mentions
“Besonders bemerkenswert finde ich den Umgang mit meiner Bewertung:
Zuerst wurde sie vom Unternehmen als "Fake" gemeldet”
On “Fake” · Aug 28, 2025
How it compares
Same method for every company: overall rating, legitimacy checks, the average rating of reviews mentioning each area and the 6-month trend · Consulting.
Overall rating and review count for this company and similar companies
Ich habe mit Lang Consulting zusammengearbeitet und möchte mich besonders bei Marc Haas und seinem Team bedanken. Die Zusammenarbeit war durchweg professionell und gut strukturiert.
Marc Haas bringt viel Erfahrung und ein gutes Gespür für strategische Prozesse mit, was sich positiv auf den Projektverlauf ausgewirkt hat. Auch das Team war stets freundlich, engagiert und lösungsorientiert.
Insgesamt habe ich mich gut betreut gefühlt und kann Lang Consulting als zuverlässigen Partner mit klarer Empfehlung weitergeben.
Vielen herzlichen Dank für die gute Zusammenarbeit!
Seit knapp einem Jahr sind wir nun bei Lang Consulting. In dieser Zeit wurde unser Online- Shop von Grund auf neu aufgestellt und wesentlich erweitert. Durch die immer differenzierte Beratung des Teams können wir jetzt die Kampagnen effizienter und zielgruppengerechter durchführen. Man muss aber auch wissen, das es eine Zeit dauert, wenn man von 0% auf 100% Erfolg kommen will. Aber genau aus diesem Grund haben wir uns für Lang Consulting entschieden!
Ich habe mit Lang Consulting zusammengearbeitet und möchte mich besonders bei Marc Haas und seinem Team bedanken. Die Zusammenarbeit war durchweg professionell und gut strukturiert.
Marc Haas bringt viel Erfahrung und ein gutes Gespür für strategische Prozesse mit, was sich positiv auf den Projektverlauf ausgewirkt hat. Auch das Team war stets freundlich, engagiert und lösungsorientiert.
Insgesamt habe ich mich gut betreut gefühlt und kann Lang Consulting als zuverlässigen Partner mit klarer Empfehlung weitergeben.
Vielen herzlichen Dank für die gute Zusammenarbeit!
Lang Consulting GmbH provides comprehensive business consulting services including strategic planning, process optimization, and management advisory. We specialize in helping companies improve operational efficiency and achieve sustainable growth across various industries.
What are your business hours?
Our office hours are Monday through Friday from 9:00 AM to 6:00 PM (CET). We also offer flexible appointment scheduling outside regular hours for urgent client needs by prior arrangement.
How can I contact Lang Consulting GmbH?
You can reach us by phone, email, or through our website contact form. For immediate assistance, please call our main office number during business hours or send an email to our general inquiry address.
Do you offer free initial consultations?
Yes, we provide a complimentary 30-minute initial consultation to discuss your business needs and determine how we can best assist you. This allows us to understand your requirements and provide you with a tailored service proposal.
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What industries do you specialize in?
We work with clients across multiple industries including manufacturing, technology, healthcare, and financial services. Our consultants have extensive experience adapting our methodologies to meet the specific challenges of different sectors.
How long do typical consulting projects take?
Project duration varies depending on scope and complexity, ranging from several weeks for focused assessments to 6-12 months for comprehensive transformation initiatives. We provide detailed timelines during the initial project planning phase.
What are your payment terms and pricing structure?
We offer flexible pricing options including hourly rates, fixed-fee projects, and retainer arrangements. Payment terms are typically net 30 days, and we provide detailed proposals outlining all costs before project commencement.
Anyone can write a CrowdTrust review. People who write reviews have ownership to edit or delete them at any time, and they'll be displayed as long as an account is active.
Seit knapp einem Jahr sind wir nun bei Lang Consulting. In dieser Zeit wurde unser Online- Shop von Grund auf neu aufgestellt und wesentlich erweitert. Durch die immer differenzierte Beratung des Teams können wir jetzt die Kampagnen effizienter und zielgruppengerechter durchführen. Man muss aber auch wissen, das es eine Zeit dauert, wenn man von 0% auf 100% Erfolg kommen will. Aber genau aus diesem Grund haben wir uns für Lang Consulting entschieden!
Do you work with small businesses or only large corporations?
We serve businesses of all sizes, from small startups to large multinational corporations. Our approach is scalable and we tailor our services to match the resources and needs of each client regardless of company size.
Can you provide references from previous clients?
Yes, we can provide references and case studies from previous clients upon request, subject to confidentiality agreements. We maintain strong relationships with our clients and many are willing to share their positive experiences working with us.
Do you offer remote consulting services?
Absolutely, we provide both on-site and remote consulting services to accommodate client preferences and geographical constraints. Our digital collaboration tools ensure effective communication and project delivery regardless of location.
About Lang Consulting GmbH
Lang Consulting GmbH is a German limited liability company operating in the business services sector. The company likely provides professional consulting services to businesses and organizations, offering expertise and advisory support across various operational areas. As a GmbH entity, it operates under German corporate law and serves clients seeking specialized business guidance and solutions.
