On April 16, 2003: Beijing D&H Law Firm was founded in Beijing.
On September 25, 2013, Beijing Dehong (Yinchuan) Law Firm was incorporated in Yinchuan, Ningxia Hui Autonomous Region.
On March 13, 2015, Beijing Dehong (Linyi) Law Firm was set up in Linyi, Shandong Province.
As of April 16, 2020, the seventeenth anniversary of its founding, Beijing D&H Law Firm had built a team of 112 full-time lawyers, apprentice lawyers and administrative staffers, and 4 part-time lawyers. The Firm has been twice voted one of outstanding law firms by Beijing Haidian District Bureau of Justice, with some of its lawyers awarded honorable titles from the legal society in Beijing in the event in honor of the 70th anniversary of the founding of the People’s Republic of China, including Exemplary Individual, Excellent Party Member, Model Worker, Excellent Member, etc. In 2018, Beijing Dehong (Yinchuan) Law Firm was voted an “Excellent Law Firm” in Ninxia Hui Autonomous Region, and lawyers of Beijing Dehong (Linyi) Law Firm won such honorable titles as Excellent Party Member, Excellent Lawyer, Excellent Woman Lawyer of Linyi, etc., from the bureau of justice and the lawyers’ association of Linyi City. In 2019, Mr. Wang Zhenyong, lawyer and chief of Beijing D&H Law Firm, received the honorable title of “Excellent Law Firm Chief in Haidian District (Beijing)”, and Gaolin, the firm’s administrative supervisor, was awarded the title of “Excellent Administrative Supervisor of Law Firm in Haidian District (Beijing)”. Relentlessly forging ahead over the years, Beijing Dehong has grown into a law firm with distinctive features.

北京市德鸿（银川）律师事务所（以下称“银川分所”）成立于2013年9月，现有执业律师及助理人员近30人，部分律师曾分别在人民法院、公安、政府机关担任过法官、警察、公务员等职务。银川分所建立了专业分工、团队作战、团队之间相互支援、主办律师或律师工作小组直接负责的科学管理与服务体系。银川分所将在北京德鸿总所的全力支持下，运用团队的法律专业能力，发挥全所的社会资源和人脉资源，为企事业单位、政府机构、科研院校以及其他从事经贸活动的单位或个人提供长期、优质、全方位的法律服务。

银川分所的办公用房配备了专业通讯、网络、视频等设备，为律师办公创造了良好条件。北京德鸿总所派驻律师还将北京总所的管理理念和经验、律所文化、分配机制、培训机制、业务模式、团队作战、团队之间相互支援等先进理念、规则植入银川分所，经过几年的发展，我们已经形成了自己特点和颇具战斗力的多个律师专业团队。

几年来，银川分所通过视频设备还与北京总所形成了一块学习、培训、研讨的良好机制，两地律师已经形成了交流、互动、合作的工作模式和办案机制，能够更好的为客户提供方便、优质、高效的法律服务。银川分所还与北京总所律师和总所外聘的专家教授在数个个案上进行过深度合作，配合默契，成果显著。银川分所还在涉外业务、行政法业务、新三板业务、税务筹划业务等方面与总所律师和总所外聘的专家教授进行过针对性研究和实战。

银川分所设立民商业务部、刑事业务部、行政法业务部、涉外业务部、工程建设与房地产业务部、执行业务部等专业部门，由相关方面的专业律师和专家教授组成团队工作小组，向客户提供高效、优质、方便的法律服务。

北京市德鸿（临沂）律师事务所（以下简称：临沂分所），是北京市德鸿律师事务所于2015年3月13日经山东省司法厅批准在山东临沂成立的市直律师事务所。临沂分所由德鸿北京总部直接管理，由北京总部派驻的资深律师以及业务精、品质好的临沂中青年律师组成，现有执业律师、实习律师及律师助理二十余人。

临沂分所拥有自有产权的办公场所四百多平米，东邻临沂市中级人民法院，处于临沂市市委市府办公大楼及行政服务中心附近，地理位置优越。

临沂分所实行复杂疑难案件专家论证制度和疑难案件集体讨论制度，聘请知名专家顾问，充分发挥北京总部专家律师资源和德鸿整体优势，秉承“惟德鸿远，德以行见，鸿以微观”的理念，牢记“天道酬勤、商道酬诚”的古训，以诉讼业务为基础，以知识产权业务、保险业务、公司业务、涉外业务、投融资法律服务为专长，为闻名中外的中国物流之都、中国第二大小商品批发市场并建立国外批发市场的大美临沂以及山东齐鲁大地的经济建设和社会发展提供优质高效的法律服务。