Catching up in a Registered Retirement Savings Plan (RRSP) can feel impossible. You look at the room you didn’t use, the years you didn’t invest, and the market that somehow kept moving without you. But an RRSP doesn’t need a miracle stock. It needs time, discipline, and businesses that can keep compounding while you get back on track.
That’s why I’d look at WSP Global (TSX: WSP) and Lumine Group (TSXV: LMN). One gives investors exposure to infrastructure, energy, transportation, and environmental consulting. The other offers a Constellation Software-style path through niche software businesses. They’re very different companies, but together, they give a catch-up RRSP both durability and growth.
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WSP
Governments and companies keep spending on the stuff that makes the economy work. Roads, bridges, power systems, water networks, mines, clean-energy projects, and data centre infrastructure all need engineering and consulting help. WSP sits right in that flow.
The company has grown from a Canadian engineering name into a global professional services firm. It earns money by advising, designing, managing, and supporting large projects. Its latest quarter showed why the stock still belongs on a long-term watch list. In the first quarter of 2026, WSP’s adjusted earnings before interest, taxes, depreciation, and amortization (EBITDA) rose 16.5% to $622.2 million, while backlog hit a record $19.7 billion. That backlog gives investors a clearer view of future work, even if the economy slows.
The TRC Companies acquisition also adds a timely catalyst. The deal strengthens WSP’s U.S. power and energy business right when electricity demand keeps climbing from data centres, grid upgrades, electrification, and industrial growth. That gives WSP another lane for long-term expansion.
The risk comes from valuation and execution as WSP doesn’t trade like a hidden bargain. Big acquisitions can also bring integration headaches. If infrastructure spending slows or margins disappoint, the stock could wobble. Still, for RRSP investors trying to catch up, WSP offers the kind of steady growth profile that can do heavy lifting over the years.
LMN
Lumine Group brings the punchier side of the portfolio. It trades on the TSXV, but don’t let that fool you into thinking it’s tiny. Lumine owns and acquires software companies focused on communications and media. Its model looks familiar because it came from the Constellation Software family.
For RRSP investors, that model can help because great software businesses can throw off recurring revenue, high margins, and cash flow. Lumine buys companies it can hold for the long term, then works to improve operations and profitability. It doesn’t need every business to become a rocket ship, but a repeatable system that can keep working over many years.
The latest quarter came with a mixed, but still useful, message. Revenue rose 17% to US$208.3 million in the first quarter of 2026, helped by acquisitions. Yet operating income slipped 3%, and free cash flow available to shareholders fell from last year. So, this isn’t a perfect quarter to brag about at a dinner party.
Still, that’s exactly why Lumine looks interesting now. The market tends to punish slower organic growth and lumpy cash flow. But an acquirer like Lumine can look uneven from quarter to quarter while still building long-term value. The key catalyst remains capital deployment. If management keeps buying well, integrating well, and improving margins, the compounding machine can keep working.
Bottom line
WSP and Lumine make sense for any Canadian trying to catch up in an RRSP. WSP offers proven infrastructure growth inside a tax-sheltered account. Lumine offers software compounding. Neither one guarantees a smooth ride, and yet both give investors something better than a quick bet: businesses with long runways and real reasons to keep growing over time, too.
