Among the top 500 firms, 155 reported declines in revenues in 2015, 61 more than a year ago, with many of them representing the overcapacity-plagued coal, steel, oil and chemicals industries.
Meanwhile, 72 firms reported losses, 15 more than a year ago.
The data was contained in 2016 edition of the top 500 Chinese Enterprises releasedChina Enterprise Confederation and China Enterprise Directors Association.
The State Grid grabbed the top spot with 2.07 trillion yuan (USD 310 billion) in revenue, with oil giants China National Petroleum Corp and Sinopec ranking second and third.
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Haitong Securities, GF Securities and China Galaxy Securities entered the list for the first time as a bull stock market boosted their revenues.
Revenues of the top 500 totaled 59.46 trillion yuan (USD 8.9 trillion) last year.
The service sector contributed 40.5 per cent of the revenues, outperforming the manufacturing sector, at 39.2 per cent, for the first time.
The 500 companies invested 1.48 per cent of their revenues in research and development (R&D) on average, with leading search engine Baidu and telecom equipment supplier Huawei spending 15.9 per cent and 15.1 per cent on R&D respectively.
Cui Dianguo, chairman of train maker CRRC Corp, said large companies should speed up overseas expansion to create a global value chain.
China's economy had declined to 6.9 per cent last year and the government which has initiated host of reforms specially to cut the overcapacity in steel, coal and oil fixed 6.5 per cent to seven per cent as the GDP target for this year.