Technology remains fertile ground for young companies to try their hand at putting new tech solutions on the market. That means investors will find plenty of penny stocks to choose from. If you want to learn more about the process of trading penny stocks, Investopedia has a day trading course.

We have selected four penny tech stocks for you to consider. These stocks were chosen based on their positions in their industries. In other words, we looked for stocks that have the potential to capture market share. All figures are current as of Nov. 6, 2017. (See also: How to Pick Winning Penny Stocks.)

Zix Corporation (ZIXI)

Zix is an email provider. It focuses on secure messaging, marketing itself to corporate and government entities. The unique approach of encryption, coupled with avoiding downloading, makes this an attractive service.

With sales rising 65% in five years, Zix is making headway. It tends to range in and out of the penny stock category, as it rises over $5 per share on occasion. As you might expect, the company is very small, with a market cap of just under $262 million. Revenues have been increasing steadily over the past four years. With earnings per share (EPS) in the positive column, this stock shows promise for investors who are willing to take on the risk of a penny stock. (For more, see: How to Invest in Penny Stocks.)

Glu Mobile Inc. (GLUU

Glu Mobile makes games for smartphones. It has multiple titles that are gaining popularity for players who use phones or tablets. Many of the titles are based on action movies, while others are based on existing console games. Interestingly, its biggest selling title is a casual role-playing game based on the life of reality TV star Kim Kardashian.

The company has worked its way out of debt and has strong cash reserves. Revenues have been rising over the past four quarters, but operating income is negative. Glu Mobile is spending on research and development to find its next hit. The potential for this stock is based on its industry, as games continue to grow in popularity, and gamers are willing to try new games even if they are not from large companies. Glu Mobile could come up with a hit game that will send the stock soaring. (See also: Glu Mobile Buys Game Company Plain Vanilla.)

  • Average Volume: 3,599,165
  • Market Cap: $513.196 million
  • P/E Ratio (TTM): -4.74
  • EPS (TTM): -$0.80

Arotech Corporation (ARTX)

This company has combined two of the hottest trends around today: drones and virtual reality. It creates technology for the military and law enforcement, offering simulations for use-of-force training. It also sells to the security and emergency services sectors. The company provides weapons simulations for aircraft and missile systems.

Arotech has positioned itself as a significant provider of surveillance and attack technologies at a time when drones are gaining increased attention and artificial intelligence is being deployed. Revenues have not grown in the past four quarters, and the company's operating income remains negative. That means investors who buy this stock are doing so based on the potential for both the company and the sector. (For more, see: Top 6 Drone Stocks.)

  • Average Volume: 248,804
  • Market Cap: $100.55 million
  • P/E Ratio (TTM): -36.21
  • EPS (TTM): -$0.11

Plug Power Inc. (PLUG)

Plug Power is a player in the burgeoning alternative energy industry, focusing on the field of hydrogen fuel cell technology. The company provides fuel cell solutions to the material handling and stationary power sectors. Based in Latham, New York, Plug Power has been in existence since 1997, indicating that there is some longevity to the story despite its current status as a penny stock.

Operating income has been consistently negative for the past few years, and that trend has continued in 2017. However, the stock price appears to have reached a bottom in the first few months of 2017, and it broke out in March and April on strong trading volume, with the shares doubling in value over that time frame. The stock has remained in an uptrend since then, and as the alternative energy industry gains strenth, the stock could have room for additional growth. (See also: Penny Stocks to Watch.)

  • Average Volume: 5,181,609
  • Market Cap: $674.021 million
  • P/E Ratio (TTM): -5.55
  • EPS (TTM): -$0.53

The Bottom Line

The trouble with penny stocks is that investors have to make some guesses about the future. Very few penny stocks have a strong enough track record to indicate that they will survive and prosper. That said, the penny stocks on our list operate in significant industries and have the potential to be vital players in those industries. (See also: The Lowdown on Penny Stocks.)

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