Are these London's greatest 'secret' growth stocks?

Plastics manufacturer Carclo(LSE: CAR) has seen its share value take a tumble in recent weeks, the firm's recent comments concerning a growing pension deficit taking a bite out of market appetite.

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The number crunchers expect this problem to weigh heavily on Carclo's dividends for this year and potentially beyond. Regardless, I believe the company's exceptional revenues performance still makes it a terrific pick for growth investors.

Carclo advised in late August that its healthcare-geared Technical Plastics division has had "a very good start to the financial year," with additional volume wins leading the business to expand capacity in India. And Carclo commented that strategies to fill recent facilities expansions in China "are gaining traction."

Meanwhile, Carclo's LED Technologies arm -- which designs lighting for premium vehicles and supercars -- is also pulling up trees, the West Yorkshire company advising of "good product demand" and that "all of the current design, development and tooling programmes are progressing as planned."

Carclo has a terrific record of earnings generation in recent times -- indeed, the bottom line has expanded at a compound annual growth rate of 18.3% during the past three years -- and the City expects further double-digit rises in the medium term at least.

Indeed, earnings growth of 10% is forecast for the period to March 2016, and a further 15% advance is marked in for fiscal 2017. And these figures make Carclo splendid value, in my opinion, with the plastics play dealing on P/E ratios of 11.9 times and 10.3 times for these years.

And I expect strong growth in Carclo's end markets to keep profits rolling higher in the coming years.

Suits superstar

'Suiter and booter' Moss Bros (LSE: MOSB) is also a splendid pick for those seeking robust earnings growth, in my opinion. With the worst of massive restructuring costs now well behind it, the menswear mammoth is expected to follow its 31% earnings surge in the year to January 2016 with rises of 11% in both fiscal 2017 and 2018.

These numbers create P/E multiples of 21 times and 19 times respectively. And while these figures may smoke the FTSE big-cap forward average of 15 times, I reckon its excellent momentum justifies these premium ratings.

The tailor announced in late September that like-for-like retail sales rose 5.3% during February-July, a result that propelled pre-tax profit 30% higher to £3.7m.

Moss Bros continues to reap the rewards of its store restructuring programme -- the firm opened an additional seven stores in the period, and more than two-thirds of its existing stores have now been refitted. But the retailer is also making headway in cyberspace, and e-commerce takings rose 9% during the half year.

With suit hires at the business also back in recovery -- revenues here rose 39% during February and June -- I reckon the top line should keep on exploding at the London fashion star.

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Royston Wild has no position in any shares mentioned. The Motley Fool UK has no position in any of the shares mentioned. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors.