For the fiscal year ended April 30, 2023, we had 6 customers with sales revenue of more than JPY1,000,000, and our top three customers contributed to 82.7% of our total sales revenue, accounting for 48.5%, 27.3%, and 6.9% of our total sales revenue, respectively. For the fiscal year ended April 30, 2022, we had 10 customers with sales revenue of more than JPY1,000,000, and our top three customers contributed to 81.5% of our total sales revenue, accounting for 47.4%, 25.9%, and 8.2% of our total sales revenue, respectively. For the fiscal year ended April 30, 2021, we had eight customers with sales revenue of more than JPY1,000,000, and our three major customers contributed to 91.6% of our total sales revenue, accounting for 46.3%, 42.0%, and 3.3% of our total sales revenue, respectively. Although we do not heavily rely upon any one customer for the majority of our revenue, our revenue is dependent on a limited number of customers who account for a large percentage of our contractually committed capacity. If one or more of our significant customers fail to make payments to us or does not honor their contractual commitments, our revenue and results of operations would be materially and adversely affected.
In addition, our reliance on any significant customers may give such customers a degree of pricing leverage against us when negotiating contracts and terms of services with us. The loss of any of our major customers, or a significant decrease in the extent of the services that they outsource to us or the level of prices we offer, could materially and adversely affect our financial condition and results of operations.
Any of our customers could experience a downturn in their business, which in turn could result in their inability or failure to make timely payments to us pursuant to their contracts with us. In the event of any customer default, our liquidity could be adversely impacted. These risks would be particularly significant if one of our major customers were to experience adverse effects to its business and defaults under their contracts with us.