73 Strings is a valuation-focused platform for private markets. Atominvest is a portfolio management platform for private equity and private credit firms, covering ingestion, validation, analysis and reporting, with valuation workflows built into that same operating layer. It won Equity Portfolio Monitoring Technology at the 2026 Drawdown Awards.
Both platforms extract data from unstructured documents. Where they differ is what sits at the center: 73 Strings is built around the valuation itself, with monitoring and extraction as supporting modules. Atominvest is built around the operating cycle - collection through to the report an LP reads - with valuation support as part of that chain rather than a standalone, dedicated engine. Here’s how to tell which fits your firm.
The real question is which part of the cycle actually hurts
Two very different problems get described with the same words. One is the mark: producing defensible, auditable fair values across a portfolio every quarter, standing them up to auditors and a valuation committee, faster than a spreadsheet-and-adviser process allows. The other is the cycle around the mark: chasing financials and covenant certificates out of portfolio companies and borrowers, validating them, testing them, and turning them into reporting your team and your investors can rely on without a two-week scramble.
That reframes the comparison around three questions a feature matrix won’t answer:
- Is your bottleneck the valuation itself, or everything that surrounds it?
- Do you need portfolio-company and borrower data collection as a first-class workflow, or is the data already arriving in reasonable shape?
- Does the platform need to carry through to investor reporting, or does another system already own that?
Where Atominvest and 73 Strings genuinely differ
Valuation depth, or valuation as part of a broader cycle
73 Strings is organized around three modules: 73 Value for valuations, 73 Extract for unstructured data, and 73 Monitor for analytics. Independent reviews describe monitoring and analytics as secondary to the valuation workflow - a reflection of the company’s valuation-advisory origins.
Atominvest’s valuation support runs on the same data model as collection, monitoring and reporting, which means the inputs feeding a mark are already validated and time-stamped rather than re-keyed from a separate system. It is not a dedicated, multi-engine valuation system in the way 73 Strings’ 73 Value is. If your valuation process needs that level of specialization - scenario modeling, waterfall analysis, multiple engines running in parallel - that’s real depth to weigh, and it’s the area where 73 Strings is purpose-built in a way Atominvest doesn’t claim to match.
Getting data in, or getting data collected
73 Extract reads documents you already hold, including covenant terms and debt service coverage ratios, and 73 Monitor automates structured collection on top of it. Some reviewers have noted that a borrower or portfolio-company submission portal isn’t named in 73 Strings’ published product materials - though product surfaces change, so if that’s a deciding factor for you, ask 73 Strings directly whether Extract or Monitor now includes a submission workflow, and get specifics rather than relying on older comparisons (including this one).
Atominvest treats collection as part of the product: configurable workflows drive on-time submissions across the portfolio, borrowers submit financials and compliance certificates directly, and results are tested against covenants automatically with alerts on exceptions. If half your quarter-end is spent chasing people for documents, ask both vendors to show you this workflow live rather than describe it.
Partner-led delivery, or vendor-delivered
73 Strings runs an accredited service provider network rather than delivering everything itself. Alvarez & Marsal, Lionpoint and, since March 2026, CohnReznick implement the platform and, in the company’s own framing, handle judgment on the harder calls. For firms already working with those advisers, that’s a reasonable model - it also means no published go-live timeline, and a third party in the middle of your rollout.
Atominvest pairs the software with its own expert implementation and customer success teams, is typically live in weeks, and stays accountable for adoption rather than treating go-live as the finish line.
Where each platform stops
73 Strings product surface is Value, Monitor and Extract.
Atominvest covers the same portfolio ground and continues into the investor lifecycle, so a validated number in the portfolio module is the same number in the quarterly report and the one an LP sees when they log in. Whether that matters depends on whether investor reporting already sits on a separate system at your firm.
Why firms choose Atominvest
Atominvest is built to win on the connected operating cycle and on adoption, not on out-depthing a dedicated valuation specialist. Four things carry the weight:
- The modular middle-ground. Investment technology tends to split into point solutions that solve one slice and leave you integrating the rest, or heavy enterprise platforms that need a long commitment before anyone logs in. Atominvest is one operating layer, adopted a module at a time – most start with Portfolio Monitoring, prove the value, then expand into Fund Operations and Valuations without re-platforming.
- Collection, validation, reporting and valuation support in one chain. Financials, KPIs, covenants and commentary are extracted from Excel files, PDFs, board decks and lender packages, validated and time-stamped, then pushed into dashboards and investor-ready reports. Firms report over 95% less manual data collection, over 80% faster quarterly reporting cycles, up to twice the monitoring frequency and up to 70% fewer operational handoffs.
- Private credit oversight that’s proactive, not retrospective. Borrower data is collected automatically, tested against covenants in-system, and surfaced as alerts. Cash flows are ingested and validated, and P&L tracking is standardized so portfolio companies in different industries can be compared honestly.
- Delivered, not just deployed. Atominvest pairs the platform with hands-on implementation and customer success, is typically live in weeks, and ships new releases three times a week, shaped by a network of global fund managers.
Where 73 Strings fits well
73 Strings has a genuine pedigree in the workflow it was built for. It’s likely the right call if:
- Valuation is your hardest quarterly problem. Five valuation engines, calibration, scenario and waterfall analysis, DCF, transaction and trading comparables, and human-in-the-loop overrides with a full audit trail, aligned to International Valuation Standards.
- You want the shortest path from a valuation adviser relationship to software. The founding team came from valuation advisory, and A&M, Lionpoint and CohnReznick implement the platform as accredited partners.
Why Atominvest might be a better fit for you
Atominvest tends to win when the collection-to-report cycle is the bottleneck rather than the mark itself. It’s likely the better fit if:
- Chasing portfolio companies and borrowers is where your quarter goes, and you want that workflow built into the platform rather than run beside it.
- You want portfolio monitoring, fund ops, and valuation support on the same operating layer, rather than a valuation specialist plus separate systems for the rest.
- You run private credit and want covenant testing, cash flow ingestion and borrower health metrics in the same system as your equity KPIs.
- You want a published implementation path and a vendor accountable for it, rather than a partner-led rollout with no stated timeline.
At a glance: two starting points
This compares approaches rather than feature ticks, because both platforms handle unstructured data well — where each starts from is what really differs.
How to choose between Atominvest and 73 Strings
Four questions settle most of these decisions:
- Is the mark the bottleneck, or the cycle around it? Deep, specialized valuation needs point toward 73 Strings. Collection, validation and reporting pain points toward Atominvest.
- Who chases the data today, and should they still be doing it in a year? Ask both vendors to demo the actual collection workflow rather than describe it.
- Does investor reporting need to sit on the same data as portfolio monitoring? If yes, a valuation specialist leaves you a second system to connect.
- Who runs the implementation, and when are you live? Ask both vendors for a named owner, a realistic timeline, and whether a third-party partner is required.
Frequently Asked Questions
73 Strings is an AI-native platform for private markets valuations, built around three modules: 73 Value for equity and credit valuations, 73 Extract for pulling data out of unstructured documents, and 73 Monitor for portfolio analytics. It’s positioned as a middle-office platform for alternative asset managers and won Best Integrated Middle-Office Platform at the 2025 Waters Buyside Technology Awards.
73 Strings is built around a dedicated, multi-engine valuation system, with document extraction and portfolio monitoring as supporting modules, sold to alternative asset managers weighted to the largest firms. Atominvest is a portfolio operating layer for private equity and private credit managers - collection, validation, analysis, reporting and valuation support.
Yes - valuation workflows run on the same operating layer as portfolio monitoring and reporting, so the inputs are already validated and time-stamped. It’s not a dedicated multi-engine valuation system in the way 73 Strings’ 73 Value is; firms with highly specialized valuation requirements should weigh that difference directly.
It markets no standalone LP portal, fundraising data room or investor servicing product. Its published product surface is 73 Value, 73 Monitor and 73 Extract. Firms that need fundraising, investor onboarding, an LP portal or investor servicing should expect to run those elsewhere, or choose a platform where they sit on the same data model, such as Atominvest.
73 Strings doesn’t publish pricing. Get a scoped quote and ask specifically what an accredited service provider will charge on top.
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