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Who are we?

A collection of language specialists with language and culture expertise including Polish, German, Spanish and English. A team who have worked together for over 3 years to provide a range of language solutions to a wide range of organisations and industries. We are qualified translators and conference interpreters with proven success in delivering events, conferences, recruitment, social media and project management tasks for our clients. Well-travelled and with a comprehensive knowledge of the culture of European countries and markets, we bring a unique range of expertise and experience to put your business language needs in safe hands. Between us, we have a wide network of professional contacts and can offer you valuable insight into what you can do to make your international events and activities a huge success.

What do we do?

We offer a specialised boutique providing a customised and personalised approach and solutions to your business language and event management needs. We have a flexible approach working closely with you to offer effective solutions that really fit your unique business. We are customer focused with high standards and aim to deliver high-quality work that leads to successful long-term relationships with you where we are seen as integral partners and part of your extended colleagues. No job is too small and no challenge too big – whether it is support to translate some procedures into different languages or project management of a large-scale conference event, you get to pick and choose the package you want and we do the rest.

How can we help you?

We can help you to overcome any language barriers to enable your international business activities to run smoothly. We can help take the pressure away and give you the confidence that your business messages will land effectively across countries and cultures. We are more than translators and interpreters–we can:

Fully event manage and deliver effective international events
Translate any written documentation and literature into different languages
Interpret at your international conferences
Organise your business trips, meetings with clients
Support your teams at international trade shows, exhibitions
Provide language and cultural information to ensure your messaging works cross cultures
Sworn (certified) translations PL<>EN
Advise and assist your teams with any language or cultural needs for marketing, social media content or PR.
Support your international travel arrangements

and lots more…We are always excited to hear about new projects. Send us a message on team@blboutique.co.uk and one of us will be in touch.

Our Core Team & Associates

Our core team have worked together since 2013. We have an extensive network of associates who can provide all the skills needed to support any specific events. Please give us a call or email team@blboutique.co.uk

Katharina Wawrzon-Stewart

0044 (0)7957349085

Katharina Wawrzon-Stewart (or simply Kasia) is a London-based conference interpreter, public service interpreter and translator. Born in Poland and raised in Germany, she left for the UK in 1995 and has been calling London her home ever since. Kasia is a native speaker of Polish and German and is fluent in English. Her career focus is on interpreting in diverse settings and she embraces all challenges. Be it at a conference abroad, during a formal business or diplomatic meeting, on top of a double-decker bus or during a factory visit, she thrives when facilitating communication across language divides.

Strengths: determination, optimistic realism, versatility
Interests: travel, reading, climbing, hiking
Role at BLB: social media and website management, finance

Justyna Gutowska

0044 (0)7445724357

Justyna Gutowska is a linguist, content writer and language coach. Born and bred in Poland, educated in the UK. Worked in almost 20 countries – Africa included, China yet to come. Fluent in Polish, English and Business. Happy to communicate in French. For her love of adventure and constant change, she qualified as a conference interpreter and works in various interpreting settings. For her passion towards the written word, she translates and creates texts and slogans. For her background experience in business, she helps companies to harness the power of language.

Strengths: adaptability, creativity, resilience
Interests: yoga, wellness, chocolate
Role at BLB: project management, business development

Ewa Jasinska-Davidson

0044 (0)7702 750003

Ewa Jasinska-Davidson is a conference, business and public service interpreter and a sworn translator. Her native language is Polish, she is fluent in English and Spanish, and is currently working on her German. She holds qualifications from both Poland and England. She moved from Poland in 2004 and has been living in the UK since then. Ewa has a head for business and voice for languages and loves to solve communication headaches for multi-lingual businesses. She has interpreted in diverse settings, from farms, through international conferences and trade shows to red carpet events.

Strengths: communication skills, flexibility, people person
Interests: travelling and diving with sharks
Role at BLB: event management and client relations

Our Packages

As a seasoned business person, you understand how significant language is in creating your company’s international image, how it enhances your business revenue and translates into its global presence. This is why you choose to budget well and invest wisely in the language strategy for your business.

At BLB we make your investment flexible, simple and worthwhile. Select one of our Business Language Strategy packages below and in 3 easy steps gain access to the full portfolio of our services - each will make a difference to your business.

Step 1 – email or call for a 30-minute free of charge language strategy consultation
Step 2 – decide which Business Language Strategy package best meets your business needs
Step 3 – enjoy the benefits of the BLB language team supporting your international growth

BLB Standard BLB Plus BLB Premium
3 hours of BLB support for £155 per month* 6 hours of BLB support for £295 per month* 9 hours of BLB support for £445 per month*
Ideal solution for when your language needs are small, yet significant. Ideal for when your business language strategy evolves. Best for full deployment of the business language strategy.
You can:

translate brochures, promotional material or social media posts
prepare standard email responses or letters in various languages
assist with a meeting with your business partner or client

You can:

write engaging, culturally appropriate texts for your website or blog
excel in your language skills, understand the business culture of your clients and counterparts
translate quotes, procedures and contracts

You can:

prepare for a trade show or a business visit abroad
organise a multilingual meeting or event
benefit from interpretation service during a conference, workshop or training

* min. 3-months contract, for shorter periods rates may vary.
Terms & Conditions apply


  • Ewa has been involved in translating and interpreting during numerous investigations. Her work was of an extremely high standard. During my work as an investigator I have used numerous interpreters over a range of languages. Ewa has worked tirelessly during my investigations involving Polish; her customer service is second to none. She is flexible, extremely happy, reliable and committed. Ewa is one of the most reliable interpreters I have ever worked with. She has always made herself available, her work is consistently high, and at times has worked some incredibly long hours to accommodate us. Ewa is a genuinely nice happy person, she is easy to get on with, shows an interest in her work, and has shown a level of commitment I have rarely met in others. I cannot speak highly enough of Ewa, and would recommend her for any interpretation and translation services.
    Alistair Taylor
  • I know Ewa through my work as a criminal defence solicitor. I have used Ewa’s services on numerous occasions to interpret for Polish national clients, both in a court setting and in meetings, as a freelance self-employed interpreter and translator. Ewa is the best interpreter I have ever used on any case. She is hard working, motivated and very committed. She is always very concerned to make sure she does the best job possible, and always provides an efficient and very professional and reliable service. She is well organised, well presented, punctual and helpful. She is very good at explaining any difficulties in translating and interpreting, and then working around any such problems. I would rate her intellectual qualities as very good. She is also very personable and easy to get on with. In my experience she is able to relate to and work with all sorts of different people, of different backgrounds and abilities. Her communication skills are excellent. I have no hesitation at all in recommending her.
    Frances Taylor
    Harrison and Bundey Solicitors
  • I had a pleasure to work with Ewa on many occasions. Our recent project was to deliver Polish-English and English Polish Translation of the printed bulletin for national Congress of Polish Entrepreneurs in the UK. Ewa delivered all work on time and with suggestion how to improve the content. She provided work with great attention to detail and professionalism at all part of the project. I would like to strongly encourage to contact Ewa for any translation work whether for business or private matters.
    Bartlomiej Kowalczyk
    BDM at Polish Business Link
  • Justyna has been instrumental in facilitating smooth communication between Polish and English speaking professionals and clients.
    Graham Tash
    Capgemini UK
  • Justyna always behaves professionally and in her tasks she is always prepared to go beyond what is required to deliver high quality results. Her clarity of thought together with evident business acumen and experience have been a valuable asset to our organisation.
    Adrian Ociepka
  • Justyna has proven herself to be a highly competent and reliable interpreter. She has the ability to 'connect' with people whilst maintaining the integrity of meetings. She is a consummate professional and I cannot recommend her highly enough.
    Vic Kureczko PhD MA BSc
    Linnk Languages
  • Katharina has translated both in German and Polish. She is accurate, organised and completes to deadline. I would not hesitate to recommend her to any organisation/individual seeking quality work.
    Vic Kureczko
    Linnk Ltd.
  • Katharina's freelance services have been very much appreciated by the agency team. She is available, responsive and easy to work with. Her localisation work was fantastic for Social Media content, and she has been delivering confidently complex reports with great insights. We value her work very much and would strongly recommend her for your social media or translation work.
    Loic Baudry (Account Director, Head of Community Management)