Offices in SF Marin and Sacramento
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Call Us:
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Toll Free: 866-392-0072
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San Francisco Office: 415-462-1631
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San Rafael Office: 415-462-0688Sacramento Office: 916-760-7429
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Business Hours in California are:
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In China: 11 pm to 8 am
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In Melbourne: 3 am to 12 pm
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In London: 4 pm to 1 am
China Investigation
Filley and Associates is a California private investigation firm, offering detective services in California and throughout the US. We also offer California investigator services in Mandarin Chinese and Cantonese Chinese.
US Investigations - Mandarin | Cantonese Speaking Investigators
For US investigation services, our Chinese speaking investigators handle cases for our Chinese speaking clients, who can learn more about our services by going to our Chinese language, US private investigator services for Chinese speaking clients.
China Investigations - English Speaking Investigators

We also offer investigations in China, through our partnership with Zhong Yang Business Services Ltd. - ZY Services for short. ZY Services is properly registered and uses Western investigation techniques and quality control in their work. Clients can either work with our US company, Filley and Associates and we will coordinate with ZY Services, or clients can work directly with our partner company, the English speaking China private investigation firm, ZY Services.
China Investigations - Mandarin | Cantonese Speaking Investigators
Chinese speaking clients, interested in investigation in China can learn more about Mandarin and Cantonese speaking investigations in China on the Chinese language website for ZY Services.
Investigation in China is different from investigation in the US and other countries. For instance, ZY Services does not conduct any criminal investigations, as this is contrary to Chinese law. One of the reasons we are so comfortable working with ZY Services is their respect for Chinese law and regulations.
Business investigation and credit investigation in China is difficult in that most records are kept at the local level, often neighborhood district level, with few central databases. Many documents are recorded by hand and in handwriting. The availability of records therefore varies from city to city.
- US investigations for Chinese speaking clients: www.filley.com/zh
- China invesigations for English speaking clients: www.chinainvestigator.com
- China investigations for Chinese speaking clients: www.chinainvestigator.com

China - Full name is The People's Republic of China, with a population of 1.332 billion people.
China has 56 ethnic groups. Its standard language is Mandarin, but because a vast country with many dialects, almost everywhere have their own dialects, including Henan dialect, Wu dialect, Cantonese, Sichuan dialect, Taiwanese, Hakka, Wenzhou dialect and other dialect. Each dialect is very different from another.
Administrative division:
Four municipalities: Beijing, Shanghai, Tianjin, Chongqing,
23 provinces: Hebei Province (Shijiazhuang, the provincial capital), Henan (Zhengzhou, the provincial capital), Hubei (Wuhan, the provincial capital), Hunan Province (Changsha, the provincial capital), Jiangsu Province (Nanjing, the provincial capital), Jiangxi (Nanchang, the provincial capital), Liaoning Province (capital of Shenyang), Jilin (Changchun, the provincial capital), Heilongjiang Province (Harbin, the provincial capital), Shaanxi Province (capital of Xi'an), Shandong Province (Jinan), Shanxi Province (Taiyuan, the provincial capital), Sichuan province (the provincial capital, Chengdu), Qinghai (Xining, the provincial capital ), Anhui (Hefei, the provincial capital), Hainan Province (the capital of Haikou), Guangdong Province (Guangzhou, the provincial capital), Guizhou Province (Guiyang, the provincial capital), Zhejiang (Hangzhou, the provincial capital), Fujian (provincial capital Fuzhou), Gansu Province (Lanzhou, the provincial capital), Yunnan Province (Kunming, the provincial capital).
Five autonomous regions: Inner Mongolia Autonomous Region (Hohhot, the capital), Ningxia Hui Autonomous Region (capital of Yinchuan), Xinjiang Uygur Autonomous Region (Urumqi, the capital), Tibet (Lhasa), Guangxi Zhuang Autonomous Region (capital of Nanning)
Two Special Administrative Region: Hong Kong 、Macao
China Investigation

How do I hire a Private Investigator?
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Free Consultation - 866-392-0072
- GIve us a call or email. We will listen carefully to what you have to say
- Together, we will discuss options and we will recommend the most effective strategy to achieve your case goals, based on our deep experience
- We prepare an Agreement, outlining what we will do and how much it will cost, for us both to sign
- We conduct an effective, thorough investigation, targeted to your needs and within your budget
- We prepare professional, captioned reports
- We bill fairly, honestly and with flexibility
- All information is handled with complete confidentiality
- Call us for a free consultation
- US Toll Free: 866-392-0072
- International: +001-415-462-1631
- This email address is being protected from spambots. You need JavaScript enabled to view it.

