Overview

About Concept21 Agency

Concept21 | Digital Agency
We are a team of specialists building custom websites and high-converting landing pages, delivering conversion-focused SEO and AI-powered automation to drive real business growth.

🗂️ With over 1,500 projects completed, we’ve learned what truly helps businesses grow. No buzzwords. No empty promises. Just clear strategies, smart tools, and results that matter.

🎯 Have a challenge? Let's solve it.
🤝 Need support? Well handle it.
From helping you stand out online to streamlining your operations, we're here to drive meaningful progress for your business. Whatever your goals, well work together to make them happen​.

✅ Our offer

  • Website Development

  • Landing Page Development

  • Multi Language Website & SEO

  • Applications Development

  • Business Development & Growth Strategy

  • SEO

  • Conversion Rate Optimization

  • Lead Generation Campaigns

Ready to grow? 🌱
Let’s build something remarkable - together 🤝

What clients say

Review Analytics of Concept21 Agency

Every review is verified through Goodfirms before it's published.

4.920 Verified Reviews
Quality4.9
Schedule & Timing4.8
Communication4.9
Overall5.0
Review Summary
Summarized from 20 verified reviews · Updated August 2026
Clients frequently praise Concept21 Agency for professional communication, responsive support, and timely delivery of website design work. The team is consistently described as qualified and collaborative, with a collaborative approach that addresses client questions and concerns clearly. Services are noted as affordable relative to quality, and clients appreciate the agency's willingness to educate them on website management and provide ongoing support. Cooperation is described as seamless and personalized, with the agency delivering results that meet or exceed expectations.
✦ AI-generated summary. May not reflect every review.
Detailed Reviews of Concept21 Agency
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What reviewers mention most

Katie Rodriguez
Katie Rodriguez, PM at Patriot ConsultingVerified Review
Posted on May 30, 2025

Great

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Web Design

Concept21 is an invaluable partner for our website creation/design and upkeep. Fast, efficient and helpful 100% of the time. Communication is great, and they are attentive to your needs/requests.

Olga Sowińska
Olga Sowińska, Project Manager at 60MLN.PL Sp. z o.o.Verified Review
Posted on Nov 3, 2023

Comprehensive Integration: Website Design&Development and Service Enhancement Project Review

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Web DevelopmentWeb Design

1. Website Design and Development: A primary service offered as part of the project was the design and development of the website itself. This included creating the website's visual layout, user interface, and the underlying technical infrastructure. The goal was to provide a user-friendly and fully functional website that seamlessly integrated with the BOWWE system. 2. Integration Services: Another crucial service involved the integration of the newly developed website with the existing BOWWE system. This integration service was essential to ensure that data, user accounts, and services could interact harmoniously, providing a unified experience for users. 3. Customer Support Services: The project also included comprehensive customer support services to assist users throughout the implementation and transition phases. These services encompassed providing helpdesk support, creating user documentation, and actively communicating with users to guide them through the changes.

Krzysztof Delikat
Krzysztof Delikat, Zarządzanie projektami, marketing, produkcja wydarzeń, produkcje on-line, business consulting, emp at 60 Million CongressVerified Review
Posted on Oct 25, 2023

Bezproblemowa współpraca

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Web Design

The cooperation began with introductory meetings. Very quickly we received the first concepts and assumptions that largely met our expectations. After preparing the project, the process of implementing and launching the finished project went very smoothly. Both design and functional solutions meet the expectations of our customers.

Tomasz Bąkowski
Tomasz Bąkowski, Innovation Manager & Expert at BrainWorx Innovation ConsultingVerified Review
Posted on Dec 21, 2022

Well prepared website in terms of design and functions including gallery

Overall rating5.0
Quality4.0
Communication5.0
Schedule & Timing4.0
E-commerce Development

Well-designed and developed website by the Bowwe team. We had a dedicated project manager who communicated adequately. The only aspect to improve is the time estimation

Paul Mekkering, Technical Sales Manager at at Nanoflam LimitedVerified Review
Posted on Nov 24, 2021

very good price quality website builders and friendly people at BOWWE

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Web Development

I would definitely recommend BOWWE to anyone who is looking for very good quality-price web designer. Quick responses, clear and open meetings, reliable and when website is running it is easy to make changes yourself. THANKS!

Martyna NamysłowskaVerified Review
Posted on Nov 23, 2021

Amazing approach to a client, professional help with our problem.

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing4.0
Web Development

Great communication with the team, satisfied with the outcome of our cooperation. The problem was approached professionally, our suggestions were always taken into consideration. As the project came to an end and our problem was solved we would definitely recommend this agency to everybody.

Joan RaftiVerified Review
Posted on Nov 11, 2021

A team of professional members. Very affordable services. I highly recommend it.

Overall rating5.0
Quality5.0
Communication4.0
Schedule & Timing5.0
Web Development

A good agency with a lot of professional skills. They helped me a lot in a short time with their service. They met all my expectations. I highly recommend working with this agency.

Ervin Qori
Ervin Qori, Software Developer at Ulan SoftwareVerified Review
Posted on Nov 10, 2021

A team of professional members and integrity services offering. always in touch with you.

Overall rating5.0
Quality5.0
Communication4.0
Schedule & Timing4.0
Web DevelopmentWeb Design

At the beginning of our work, their Project Manager talked to us and asked in detail about everything we care about in our project. Based on our preferences , Concept21 performed an analysis of our company. Its results were used to offer us a final product.

Xhulio BedullaVerified Review
Posted on Nov 10, 2021

Affordable Services with a good team of Professionals. Really liked them

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Web DevelopmentApp Designing (UI/UX)Business Services

A good company with professional skills. Helped me a lot in a short time with their service. Had good communications skills, which is the most important thing.

Robert Markudis, Lead Generation Specialist at at Ulan SoftwareVerified Review
Posted on Nov 8, 2021

Collaboration was great, everything works perfectly. I recommend it for everyone

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Web DevelopmentWeb Design

Collaboration was great, everything works perfectly. I recommend it for everyone who want to have a website with great UI/UX and extra quality and speed.

Patrick Misiewicz, MSLSCM
Patrick Misiewicz, MSLSCM, Managing Director at Polrydian GroupVerified Review
Posted on Oct 28, 2021

Personalized and agile professional service delivering what I wanted, and even beyond

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Digital MarketingSEO

I'm a real estate professional, moving my business to the digital/metaverse, which is not such an easy thing to do for busy professionals.That's where Bowwe came to play, making my www.viewmiamiproperties.com fresh and crispy for my real estate digital campaigns.No matter what business you are in, their personalized and agile approach will make your digital business card look awesome.

ELED Elektryka, Owner at ELED ElektrykaVerified Review
Posted on Oct 19, 2021

Professional website design service

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Web DevelopmentWeb Design

I totally recommend Concept as an agency to choose to create a website that fits branch needs! Support and management 10/10

Alfonso GarcíaVerified Review
Posted on Jul 15, 2021

Qualified professionals

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Other Services

They are professionals who have been at all times helping us with any questions, problems, they have quality monitoring, the quality of their work is excellent, maximum reliability and with a very good price.

montse alcalá bayona
montse alcalá bayonaVerified Review
Posted on Jul 15, 2021

Review on Concept21

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Digital MarketingWeb DevelopmentSEO

I recommend this agency, they are very good in using website builders and running digital marketing campaigns. They deliver real results and they care about it. When they are working on your website they keep you informed of all the stages of creation, they are very professional. Very big recommend!

Paulina BurskaVerified Review
Posted on May 27, 2021

A fresh look on website development

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Web DesignWeb Development

It was a pleasure to work with Concept21. They provided me constant support through all the process of creating my website, and even after publishing it. They've got a fresh look on website development and totally understand your business needs. Would highly recommend Concept21 for everyone.

Focus

Service Focus of Concept21 Agency

How the team's effort is distributed across services.

50%20%15%10%

Industries Focus

20%20%20%20%

Client Focus

Small Business80%
Medium Business20%
Selected Work

Client Portfolio of Concept21 Agency

Where their work concentrates - by industry, budget, and timeline.

Project Industry

Business Services20%
Healthcare20%
Other20%
Consumer10%
Hospitality10%
Entertainment10%
Education10%
Major industry focus
Business Services

Project Cost

Not Disclosed100%
Common project cost
Not Disclosed

Project Timeline

Not Disclosed100%
Typical timeline
Not Disclosed

Portfolios: 10

Executive Interview

Executive Interview of Concept21 Agency

Karol Andruszków
Karol Andruszków
CEO
Visit Profile

Please introduce your company and give a brief about your role within the organization.

We are the agency that mainly creates websites and online stores. We have been operating on the market since 2010. We work mostly with micro, small and medium-sized companies from many countries. In the beginning, they were mainly customers from Eastern Europe, but now most of them come from the USA and Western Europe.
Our mission is to deliver real growth to all our clients. What distinguishes us is a very high commitment to each project. We never work like some agencies, which simply use a template, slightly adapt it to the client, and then charge a huge margin on the person-hours spent.

We have a very individual approach to each project and manage it most effectively. What is very important, we have a very carefully arranged process for creating projects. We have been developing it for over 7 years and constantly optimizing. Therefore, we are always able to deliver high-quality compared to the time spent. This also guarantees very reasonable costs for our customers.

What additionally distinguishes us? High level of specialization: we use artificial intelligence, interdisciplinary teams work on each project, and all of them are led by very experienced leaders.
 
We perfectly know our client, their problems, and their deep needs. We know how to help them. We have completed over 1000 projects - in each of them, we put in a lot of hard work, commitment and heart. We are also characterized by providing our clients with a satisfaction guarantee. We limit their risk to an extreme minimum.

Regarding my role in the company, as CEO, I manage all the work and always try to get to know our clients, so I often join e-meetings with them. I believe that every client has the right to get to know the people behind the company before deciding to cooperate with it. Therefore, I don’t restrict access to myself, I try to be as available as possible to Concept’s clients.

What is the story behind starting this company?

The business idea was born many years ago, before 2009. At that time, we worked in large corporations - international financial institutions and the largest European banks. There we dealt with the implementation of advanced IT projects. We came up with the idea to create a platform dedicated to micro, small and medium-sized businesses and allow them to grow online. We started building that platform around 2009-2010. In 2012 the first version of the project was ready. We started meeting with clients. They liked the idea of the SME-dedicated platform very much, but they told us it was too early for such a project. Of all our platforms, they liked the website creation part the most. They came to us and said: "It is too early for this technology, but could you please create a website for me with specific functions?". And they asked for: a website with a portfolio, a website with vouchers, a website with real customer reviews... We started making these sites and then promoting them, and clients saw it worked. So they asked for more and recommended us further. We began to do it on an increasing scale, each time creating a project following the individual client's needs. We felt that personalization would be a massive trend in the future. This is how it started.

What are your company's business model – in house team or third party vendors / outsourcing?

Currently, our team consists of 30 people. Additionally, we cooperate with about 20 subcontractors, mainly in the creative areas: of design, graphics, and copywriting. This gives us access to enormous creative possibilities; we can create any, even very diverse design. Thanks to this, our projects perfectly match the specificity of the client’s business, industry, and branding. When it comes to copywriters, we work with them mainly to create multiple language versions of websites. We work only with native speakers - this ensures the perfect translation of all texts and the nature of communication into any other language. We believe native speakers guarantee the highest quality.

Many customers for whom we have created a website or online store come back to us and pay for monthly maintenance. Such a service is straightforward but essential and very effective: for several hours each month, we optimize the website, increase the results achieved by it, and make sure that the website maintains a very high level. The standards of web development and positioning are constantly changing. It's crucial to take care of it, not only at the beginning, right after creating and publishing the website, but also in the following stages. We usually make minor corrections on the website for free, to the wishes of our customers.

How does your company differentiate itself from the competition?

  1. Very high commitment to each project - we are proactive and always try to ensure that the final project exceeds even the client's expectations. The satisfaction and opinions of our clients confirm that we are good at it.
  2. Each of our clients can verify us before starting cooperation. We have opinions on many portals issued by confirmed customers. In addition, anyone can call us to learn more about our values and working methods.
  3. We use artificial intelligence and wide automation to be faster and more efficient than others.
  4. We have a large, interdisciplinary team so that we can implement many projects simultaneously with the same high quality.
  5. We have the best price-quality ratio of all famous companies.
  6. We care about the comfort of our customers. Therefore we provide them with a satisfaction guarantee. Thanks to this, they are very well protected. So far, only 1 customer has exercised this right.
  7. Each project is carried out by a minimum of 5 people who specialize in other areas. Sometimes more people work on larger projects.
  8. We have a very well-organized process, thanks to which we never deliver the final project worse than B + (compared to traditional academic grading in the USA).
  9. We have extensive and profound knowledge of web development, online business, marketplaces, and marketing, which we have been acquiring for many years. We participated in the most significant global events in our industry.
  10. We have leaders who are specialists in their fields and speakers of the World Bank in their areas.
  11. We understand our clients perfectly. We know they need growth and solutions to existing problems. We deliver this by creating the highest-quality websites and online stores optimized to achieve business goals. Our actual product is not a website but a solution to problems and meeting customer expectations. From my experience, I can confirm that we can meet and even exceed almost all expectations.

What industries do you generally cater to? Are your customers repetitive? If yes, what ratio of clients has been repetitive to you?

We create mainly for specialized service industries, but not only. We often develop websites for specialists, including architects, lawyers, doctors, and designers. We also often create for more common industries, including restaurant, beauty, and construction industries. They are small and medium-sized businesses, mainly from the USA and Western Europe. Most of our clients come back to us after the end of the project because they see the effects of our actions. This is how our regular monthly services were born - because our clients asked us for them, and we wanted to help them as much as possible, so we decided to add them to the offer. Currently, clients have been cooperating with us for a very long time, on average over 5 years.

Please share some of the services that you offer for which clients approach you the most?

  1. Design and development of a professional website -  for any business to reach business goals and grow online.
  2. Design and development of a professional online store - for any business to grow online, no matter if it sells products or services.
  3. Design and development of Landing Pages - we can create a well-designed, highly effective landing page with which it is possible to achieve any marketing and business goal. Our experience shows that landing pages help increase the achieved results for B2B and B2C companies.
  4. Design and development of Micro Pages / "Link trees" - We offer our clients a specialized product - Micro Page for marketing campaigns' needs. It allows you to significantly increase conversion from campaigns to mobile devices, social media campaigns, influencer marketing, etc. It is also very often used by private individuals to improve their image on the web.
  5. Implementation of applications - We implement apps on websites and online stores that let businesses gain more customers and grow faster. Apps like vouchers, loyalty programs, booking engines, portfolios, or chatbots are just some of our products. Now it's easy to reach the higher business level.
  6. Page optimization - over a dozen years of experience in creating websites provides us with extensive competencies. We are able to help every small and medium-sized business by optimizing its website through mobile optimization, improving SEO, User Experience optimization, or conversion optimization.
  7. Launching and running advertising campaigns - we have very advanced knowledge in almost all areas of digital marketing. We offer various campaigns, in most online marketing channels, including social media, mailing, SEO, SEM, PPC, content marketing, and analytics. With the help of various campaigns, we are able to effectively implement different marketing and business goals at every stage of the sales funnel or customer journey.

What is your customer satisfaction rate according to you? What steps do you take to cater to your customer's needs and requirements?

We always care about absolute customer satisfaction. Most often, it's expressed in how many customer problems we have solved and with what result. Our mission is to deliver growth, so we approach clients' problems comprehensively and try to solve them all. We are always very committed and we try to deliver a project that exceeds the client's expectations. This gives us the satisfaction that he will always be satisfied. And most likely he will come back because he remembers our cooperation well.

In addition, at Concept Agency, we provide our clients with a Satisfaction Guarantee, which works in simple terms: If the project does not meet the client's expectations and is not satisfied with it, he does not bear most of the costs of the project. I will tell you more about how the Satisfaction Guarantee works.

What kind of support system do you offer to your clients for catering to their queries and issues?

We are always available to our potential and current clients. They can always write to us, call us, arrange a demo or online meeting or even contact us via the chat on our website. All requests and tasks of our clients are saved in our internal system for organizing tasks. Additionally, we use CRM to improve customer service and management processes. Thanks to this, we have great control over all projects, regardless of their implementation stage. We often come back to our clients with suggestions for developing their websites. We try to be proactive and monitor all websites and online stores we create using analytics tools. Thanks to this, we know what results they achieve, how fast they act, how they position themselves, etc. If something goes wrong, we even contact former clients with suggestions on what to do to improve the website's results. We want to provide them with the biggest growth.

What kind of payment structure do you follow to bill your clients? Is it Pay per Feature, Fixed Cost, Pay per Milestone (could be in phases, months, versions etc.)

In the case of one-off projects, the client first pays 20% of the total project valuation, which is an advance payment. The remaining amount is paid only when the project is completed and only when the customer is satisfied. Otherwise, the customer does not have to pay the remaining 80% of the total amount. This is how our Satisfaction Guarantee works. The client risks almost nothing by starting cooperation with us - only 20% of the project costs which are often below our costs.

In fact, we bear the entire risk of delivering the project and all financial consequences. But we can afford it because we always deliver great results. Honestly, only once in our history has a customer benefited from a Satisfaction Guarantee.

In addition, we offer our clients various permanent services. Here, the pricing is very simple and depends on our time devoted to a given client. We always offer our clients only the services that suit them and are the most necessary for them. We do not want to sell the client, for example, a larger package of services if the client does not need it. We are very honest about it.

Do you take in projects which meet your basic budget requirement? If yes, what is the minimum requirement? If no, on what minimum budget you have worked for?

Such projects are usually challenging and demanding, which does not discourage us. If we feel that we can really help the company, we can also implement such projects. The minimum is usually around $2,000.

What is the price range (min and max) of the projects that you catered to in 2021?

From $2,000 to $ 20,000. Of course, this price may differ in the case of very specialized projects, but 90% of our projects were within this budget.

Where do you see your company in the next 10 years?

Well, I'm definitely not interested in getting Concept to become a large corporation. We want to remain a specialized boutique agency that provides the highest quality services. It is crucial to us - the current size of our agency allows us to be partners for our clients, which we care about. We want to be treated as partners and always act based on the trust of our clients. I know from experience that such cooperation is the best; it provides the customer with the most significant value and feels well served. For a long time, we have been very focused on working with artificial intelligence, creating and managing processes, and expanding the technological stack. Each of these factors is our advantage, and all of them combined allow us to be much more effective than the average competitor. The satisfaction of our customers confirms this.

In addition, we will constantly expand our knowledge over time. We are up to date with all trends and create tools to exchange acquired knowledge within the company. In this way, we are constantly developing, allowing us to have top-class specialists in our team. Over the years, we want to be more and more recommended by our clients and thus increase our reach and visibility in the industry. Nevertheless, we do not want to develop into a corporation because our priority is to maintain a very high quality of project implementation and customer service. Perhaps we will grow a few more times (I wouldn't mind!). But not to the size of a large corporation.

Where we are

Locations (1)

Offices where Concept21 Agency operates.

Headquarter
Poland

Poland

Zaolzianska
Wroclaw, Lower Silesia 50421
531313339