Software bug-fixing company Raygun is preparing for another growth spurt after helping clients such as Microsoft and Apple identify the cause of more than 10 billion software crashes.

Chief executive and co-founder John-Daniel Trask says the Wellington firm needs to scale up its business in the United States to maintain its small lead in the market for tools designed to rid the world of software errors.

After raising $1.4 million from investors last year, the 22-person company is considering a second private capital-raising that could see it roughly double in size.

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