After surviving a tough year, Apple is back on the limelight as the American tech giant reclaimed its throne in the list of most valuable companies in the United States.

Wednesday's data revealed that the iPhone maker progressed by 0.03 percent, ending up with a market value of $821.5 billion, Reuters U.K. reported. In second place, Microsoft's market value was marked at $813.4 billion after stock prices dipped by 1.11 percent.

Amazon, on the third spot, saw a 1.12 percent share dip, finishing off at $805.7 billion. Previously, the retail giant and Microsoft led the way in terms of value but Apple stocks soared 13 percent since the Cupertino-based tech provider released its quarterly report.

Apple was previously a cause for concern among economists who were worried after the company's earnings report indicated that iPhone demand was reduced over the past few months, particularly in the Chinese market.

Last October, Apple made a record-breaking $1.1 trillion in earnings. However, the tech giant's market capitalization declined and within two months after its successful run to glory, allowing Amazon and Microsoft take over.

Meanwhile, concerns are increasing as Amazon's data revealed that the Washington-based online retail mammoth saw a stock decline of 5 percent ever since it announced that it will step up this year's investment ventures.

Senior Portfolio Manager at Synovus Trust in Atlanta, Dan Morgan said of the matter, "That has raised some eyebrows, it's a perception that Amazon may be settling into a more mature phase in terms of growth."

Despite the dilemma that Amazon is faced with, Morgan, who owns shares in the top three most valuable companies in the United States, clarified that he would still opt for retail store. For Morgan, the company's cloud-computing market share is a key driver that could help stocks recover.

As for Microsoft, some analysts believe that the search engine owner can still dominate the tech market through cloud computing programs. In his commentary for The Street, trade and economy expert Stephen Guilfoyle noted that the Bing creator has forged a strategic partnership with Walgreens Boots Alliance that could expand the company's cloud ventures.

Guilfoyle, who is also the founder of Sarge 986, explained that if the tech marketplace struggles this year, cloud-related ventures will be introduced to help the industry recover. Microsoft's partnership with Walgreens will last for 7 years and will allow the latter's employees to access Office 365 and Windows 10.

The rise of cloud computing projects is becoming a key factor that helps investors and economists gauge a tech company's potential performance in the market. Aside from Microsoft and Amazon, other Chinese tech giants such as Baidu and Alibaba are exploring the cloud sect further.