As I started to help, I noticed the English version has flaws.  Instead of continuing, I corrected the English version.  I felt that it is not formal and professional enough for putting on a company brochure etc.  The language used is different from everyday English.  If you agree on the changes, we can work on this translation together.

XY Consulting is known for its a reliability and professionalism partner for your business. Our success is built upon a with strong teams of professionals. who share Their expertise, experience and professionalism are here energy to support foreign companies on setting their  opening and development of business in Russia. We offer our customers complex [you mean simple, best to even leave this out, who wants to have a complex solution!] comprehensive solutions to optimize costs, risks, and time associated with to the complicated nature of doing business in Russia, taking into account and its regional local business specifics. We provide a vast range of services that cover in all major business aspects such as areas - from company registration, accounting outsourcing, taxation, legal and financial advisory services; to visa and language support; market research and sales outsourcing. Our key professionals possess have overseas working experience, are fluent in several languages and able to adaptability  themselves to meet the international background needs of our partners from the United States, Europe and Asia. We adhere to a have flexible pricing plans. policy and select the best solution for Each project is unique and the needs are different.

We appreciate your trust and ensure strict adherence to the complete Client confidentiality of clients' information is of our top priority. You always feel our support - every company Each project is supervised by a personal manager. , we provide Progress reports are provided on a regular basis. Professionalism and responsibility in decision-making Striving to achieve the best results in everything we do Honesty and liability, respect for the values, culture and needs of our customers. Focusing on long-term development, openness to new experience and a willingness to change for the better

XY Consulting is here at your service.

My Eng-Chinese translation. Could anyone help with revision?

XY咨询公司是你的企业可靠和与[More formal]专业的合作伙伴[No need for this since this is a formal ad.]。
我们的成 就功以强固大作业团队为基, 以其础。他们用专业知识，经验和与精力为来支持外国公司在俄罗斯境内建立企业以及业务发展的服务。
我们为客户提供复杂的解决方案，为了优化和在俄罗斯做生意有关的成本，风险和时间考虑到 当地的商业细节。
我们提供所有的主要业务领域的服务：公司注册，会计外包，税务，法律及财务咨询服务，签证和专业翻译，市场调研，销售外包等。

我们的主要专业人员都有海外工作经验，会说几门语言，并能适应我们来自欧美亚合作伙伴的国际化背景。
我们坚持灵活的定价策略，并为每一个项目选择最佳解决方案。
我们非常感谢我们客户的信任，并确保严格遵守客户的信息绝对保密。
你们总是能感到我们的支持：每个客户都由私人经理监督，我们定期提供进度报告。


事业心和责任感决策
在我们所有的活动努力得到最好的结果
诚信和责任，尊重客户的价值观，文化和需求。
着眼于长远发展，对变革的开明态度

After removing all the editing marks, I found some errors and after a 2nd English polishing...  Also some of the translation is not literal but by meaning.  This is my first foray in technical translation from English to Chinese.  Please, if anyone finds any error, please point it out so that we all can learn and benfit.

XY Consulting is known for its reliability and professionalism.

XY咨询公司以可靠性与专业性为/名气/傳名/ 

Our success is built by our strong teams of professionals.

我们的成功与成就是因为我们的专业人才队伍的熱心樂力. 

Their expertise, experience and professionalism can help foreign companies to set up their business easily in Russia.

他们的专业知识, 经验与专业性能易助外来公司設立於俄罗斯. 

We offer our customers comprehensive solutions in dealing with the complicated nature of doing business in Russia and regional specific requirements.

由於俄罗斯有設业的複杂條件与地区 的要求, 我们可為貴公司提供全面的解决方案

We provide a vast range of services for all business aspects such as company registration, accounting outsourcing, taxation, legal and financial advisory services; visa and language support; market research and sales outsourcing.

我们亦可以为您服务关於种类繁多的业务环节, 例如 公司注册，会计外包，税务，法律及财务咨询，签证和专业翻译，市场调研，销售外包等等 

Our key professionals have international working experience; they are fluent in several languages and have the adaptability to meet the international requirements of our partners from the United States, Europe and Asia. 我们的主要专业员有囯際工作经验, 通於各种言語, 有相当 的/適/变/应性, 以能滿足美欧亞的国際公司要求We have flexible pricing plans to cater to your unique project. 我们有相当通融的定价计划，以满合您的独特的项目。

Client confidentiality is of utmost importance to us.

客户机密对我们極重 

Each project is supervised by a personal manager.

 每一项目中, 有一专经理来管理与監督. 

Progress reports are provided on a regular basis.

定期进度报告也为您表发.

XY Consulting is here at your service. 

XY咨询公司在此為你服务

Hope this helps. :)

My Eng-Chinese translation. Could anyone help with revision?

XY咨询公司是你的企业可靠和专业的合作伙伴。
我们的成功以强大作业团队为基础。他们用专业知识，经验和精力来支持外国公司在俄罗斯境内建立企业以及业务发展。
我们为客户提供复杂的解决方案，为了优化和在俄罗斯做生意有关的成本，风险和时间考虑到 当地的商业细节。
我们提供所有的主要业务领域的服务：公司注册，会计外包，税务，法律及财务咨询服务，签证和专业翻译，市场调研，销售外包等。

我们的主要专业人员都有海外工作经验，会说几门语言，并能适应我们来自欧美亚合作伙伴的国际化背景。
我们坚持灵活的定价策略，并为每一个项目选择最佳解决方案。
我们非常感谢我们客户的信任，并确保严格遵守客户的信息绝对保密。
你们总是能感到我们的支持：每个客户都由私人经理监督，我们定期提供进度报告。


事业心和责任感决策
在我们所有的活动努力得到最好的结果
诚信和责任，尊重客户的价值观，文化和需求。
着眼于长远发展，对变革的开明态度

Can't help without an English version.

My Eng-Chinese translation. Could anyone help with revision?

XY咨询公司是你的企业可靠和专业的合作伙伴。
我们的成功以强大作业团队为基础。他们用专业知识，经验和精力来支持外国公司在俄罗斯境内建立企业以及业务发展。
我们为客户提供复杂的解决方案，为了优化和在俄罗斯做生意有关的成本，风险和时间考虑到 当地的商业细节。
我们提供所有的主要业务领域的服务：公司注册，会计外包，税务，法律及财务咨询服务，签证和专业翻译，市场调研，销售外包等。

我们的主要专业人员都有海外工作经验，会说几门语言，并能适应我们来自欧美亚合作伙伴的国际化背景。
我们坚持灵活的定价策略，并为每一个项目选择最佳解决方案。
我们非常感谢我们客户的信任，并确保严格遵守客户的信息绝对保密。
你们总是能感到我们的支持：每个客户都由私人经理监督，我们定期提供进度报告。


事业心和责任感决策
在我们所有的活动努力得到最好的结果
诚信和责任，尊重客户的价值观，文化和需求。
着眼于长远发展，对变革的开明态度