# Deep Dive: ThomasNet and Xometry

## Bottom line

Phil's memory checks out on substance, not on name: the acquirer is Xometry, not "Symmetry" (there is no evidence a company called Symmetry was involved; this is almost certainly Phil misremembering or mishearing the name in conversation). Xometry bought Thomas Publishing Company, owner of Thomasnet.com, for $300 million in December 2021. Four years later the numbers say the acquisition did not fix ThomasNet's core problem. ThomasNet is still a pay-to-be-listed directory with a lead-gen business model, its organic traffic has collapsed (SEMrush-reported 88 percent decline in US desktop organic traffic from June 2023 to June 2025), and inside Xometry it has been demoted to a shrinking "Supplier Services" segment that management itself now calls "a drag" on the business. Xometry's real growth engine, the instant-quote Marketplace, solves a narrower problem (speccable CNC/3D-print/sheet-metal parts) with a broker model that takes a large cut and draws open hostility from the machine shops that fulfill on it. Neither business has built the "warm intro" layer Phil describes. That gap is still open.

## The acquisition: confirmed facts

- Announced December 8, 2021. Xometry acquired Thomas Publishing Company (parent of Thomasnet.com) on a cash-free, debt-free basis for $300 million: approximately $198.5 million in cash and $101.5 million in Xometry Class A common stock. (Xometry investor relations press release; GlobeNewswire; Nasdaq wire; SIIA coverage quoting Xometry CEO Randy Altschuler)
- DC Advisory advised Thomas Publishing Company (the seller) on the sale. (DC Advisory deal announcement)
- At the time of the deal, Thomasnet.com had more than 1.3 million registered users, including 93 percent of Fortune 1000 companies, and more than 500,000 commercial/industrial suppliers listed. (Xometry press release; Thomas's own site)
- Xometry framed the deal as buying Thomas's industrial data, SEO/content assets, and digital marketing business to build "an end-to-end suite of seller services" wrapped around its own marketplace.

## Thomas/ThomasNet history (pre-acquisition)

Founded in 1898 by Harvey Mark Thomas, originally a trade publication. Became "Thomas' Register of American Manufacturers" in 1914, the famous 34-volume "Big Green Books" that sat in every industrial purchasing department. Went online as ThomasRegister.com in 1995, published its final print edition in 2006 as it fully migrated to Thomasnet.com. Partnered with Dun & Bradstreet in 2017 for supplier risk-assessment reports. Passed 1 million active registered users by March 2020 (Businesswire). This is a century-old media/directory business, not a tech company; its moat was distribution and incumbency (every Fortune 1000 sourcing team already knew and trusted it), not product.

## Directory size and traffic: the "42,000" figure and reality

I could not verify a "~42,000 suppliers" figure anywhere in Thomas's own materials, press coverage, or SEC filings; I searched directly for it and found nothing matching. What is consistently and repeatedly cited across a decade of press releases, Thomas's own blog, and Wikipedia is "500,000+" active supplier profiles and "1.3-2.2 million" registered buyer/user accounts (the higher figure appears in more recent Thomas marketing copy). My read: 500,000 is the count of listed company profiles (most unpaid, scraped or self-registered, many effectively dead), not the count of paying, actively-managed advertiser accounts, which is almost certainly a much smaller number - plausibly in the range Phil remembered, though I could not pin an exact figure to a source. This distinction matters a lot for the product thesis: "500,000 suppliers" is a vanity/SEO number, not a live, curated supply pool.

On traffic: Similarweb data cited in industry coverage put ThomasNet at roughly 580,000 visits in February 2026. A marketing-industry blog (marketingmetricscorp.com, which sells alternative lead-gen services to manufacturers and has a commercial incentive to talk down ThomasNet, so read with that bias in mind) cites SEMrush data showing an 88 percent decline in ThomasNet's US desktop organic traffic between June 2023 and June 2025, a loss of about 541,000 monthly visits, with the decline "rolling over hard" starting around 2022, i.e., right after the Xometry acquisition closed. Their stated causes: Google algorithm updates that hurt ThomasNet's SEO visibility, no aggressive paid-ad response (in contrast to Xometry's own heavy Google PPC spend on its own brand), general digital-transformation lag, competition from Amazon and other marketplaces, and a structural shift of buyer behavior toward asking ChatGPT/Copilot directly instead of browsing a directory. Even discounting some of this source's framing for its own commercial interest, the SEMrush decline number and the ~580k current-visits number both point the same direction and are independently sourced, so I treat the magnitude of decline as credible even if the causal story is one vendor's spin.

## Business model, before and after acquisition

**Before (independent Thomas Publishing):** classic B2B media/directory monetization. Free basic company profile; paid tiers for lead-generation placement, priority search ranking, and analytics. Pricing is not CPC/CPL-based but an annual category-competitiveness fee: reported ranges run from "several thousand dollars" up to "$30,000+ per year," with an average annual listing cited around $7,000-$10,000. One small, recent (2026) survey of 85 advertiser clients by a marketing agency put effective cost-per-lead around $220, which the same source frames as high for the category. Buyers used ThomasNet by browsing/filtering the directory by product/category and submitting RFQs that get broadcast to listed suppliers in that category, plus consuming Thomas's large industrial-content library (3.5M+ pages) which the company's own material claims buyers use to complete "70 percent" of a purchase decision before ever contacting a supplier.

**After (inside Xometry):** In June 2022, Xometry integrated its own Instant Quoting Engine, Job Board, and financial-services products directly into Thomasnet.com, explicitly to put "buy it now" in front of Thomas's 1.4 million registered users. The strategic logic: use Thomas as a top-of-funnel discovery/SEO asset that feeds Xometry's own higher-margin, higher-take-rate marketplace, rather than continuing to invest in the directory/lead-gen product as a standalone business. Employee accounts on Glassdoor describe "uncertain times" post-acquisition, outsourcing, and technical staff being cut and replaced with international vendors; Xometry also did a company-wide 6 percent workforce reduction in January 2023 as part of broader cost-cutting (not Thomas-specific, but concurrent). Reporting from the same marketing-agency source describes advertisers losing access that on-demand jobs previously gave them into Xometry's marketplace, a reduced Thomas salesforce, and complaints of declining lead quality and reporting transparency - treat as one interested party's account, but directionally consistent with the financial data below.

**Financial materiality today (verified from Xometry's Q4/FY2025 earnings, reported Feb 24, 2026):** Xometry now reports two segments, Marketplace and Supplier Services (Supplier Services houses Thomas plus Xometry Supplies and financial products). Q4 2025: Marketplace revenue $178.5M (+32.7% YoY); Supplier Services revenue $13.9M (-0.7% YoY). Full year 2025: Marketplace $629.6M (+29.6% YoY) vs. Supplier Services $57.0M (-4.4% YoY), out of total company revenue of $686.6M. In other words, the segment containing ThomasNet is roughly 8 percent of Xometry's total revenue and shrinking in absolute dollars while the core marketplace grows nearly 30 percent a year. Xometry's own Q4 2025 commentary described Supplier Services as having "remained a drag," while noting the "core advertising business had stabilized" - management's own words confirm ThomasNet is treated as a legacy, low-priority asset, not a growth product. Xometry finally hit adjusted-EBITDA profitability for the first time in FY2025 ($18.5M vs. -$9.7M in 2024), but GAAP net loss actually widened to -$61.7M (from -$50.4M in 2024).

## Xometry's core marketplace: mechanics, take rate, shop-side reality

Xometry's Marketplace is an instant-quote broker model, distinct from ThomasNet's directory model: a buyer uploads a CAD file/spec, Xometry's pricing engine (proprietary + AI-assisted) returns a price and lead time immediately, the buyer accepts and pays Xometry, and Xometry sources fulfillment from its network of manufacturing partners, guaranteeing the job regardless of which shop actually makes it. Xometry, not the buyer or shop, owns the customer relationship and the margin.

Take rate/margin data points across time: at its 2020 S-1, Xometry's "net revenue" after supplier payouts was about 23 percent of gross transaction value ($33M net of $141M gross), with 43,000 buyers, only 1,410 active sellers, and a claimed 6.1x LTV/CAC on US buyers. By late 2022, machine-shop forum discussion (Practical Machinist, "Xometry's 'take' grows to 39% last quarter," Oct 2022) cited Xometry's gross margin rising from 26 percent to 39 percent, prompting shop owners to publicly question whether that leaves "any room for the shops...to do a good job." FY2025 marketplace gross margin was reported at 34.7 percent, up 120bps YoY. As of Dec 31, 2025: 81,821 active buyers vs. only 4,996 active suppliers (up 17% YoY) - a roughly 16:1 buyer-to-supplier ratio, meaning a small, curated shop network is absorbing a much larger and fast-growing buyer base, exactly the dynamic that produces price and lead-time pressure on the supply side.

Shop-side sentiment on Practical Machinist (a large, credible primary-source machinist forum, not a marketing blog) is consistently negative and recurs across many separate threads over years ("Xometry-Who is doing it?", "Xometry Prices," "Are Industrial marketplaces like Xometry worth the time," "Xometry Quality Lately?"). Representative quotes: one shop owner says Xometry "is a race to the bottom and I stopped working for free or for cheap"; another proposes a warning pop-up reading "It's a race to the bottom, AND YOU AREN'T BUILDING A CUSTOMER BASE!" Complaints cluster around: bidding-war dynamics that push work to the lowest-cost (often offshore) bidder, domestic shops unable to source raw material at the prices Xometry's engine quotes, quality inconsistency, and a marketplace design that structurally prevents shops from building a direct, repeat relationship with the end customer (Xometry deliberately intermediates that relationship to protect its own margin).

## Thomas branding today

Thomasnet.com is still live under its own brand (not renamed to Xometry), with blog.thomasnet.com and business.thomasnet.com as separate advertiser-facing properties, but its transactional back end (Instant Quoting Engine, Job Board) now runs on Xometry infrastructure. It functions as an SEO/content-and-lead-gen front door that feeds Xometry's marketplace, not as an independently invested product.

## The gap this leaves for an agent-native matchmaker

1. **ThomasNet never solved "warm intro."** It is pay-to-be-found plus keyword/category search plus a broadcast RFQ. The buyer still does the matching work themselves (read profiles, guess fit, send inquiries into a void); there is no capability-, capacity-, or trust-aware matching layer. This is the exact gap Phil is describing, and it has existed for the entire time ThomasNet has existed as a directory.
2. **The acquisition did not close that gap; it redirected the asset.** Xometry bought Thomas primarily for its SEO/data/audience, then funneled that audience toward its own instant-quote product rather than fixing directory-side matching. The financial data (Supplier Services now ~8% of revenue and shrinking, management calling it a "drag") shows Xometry has no incentive to reinvest in fixing ThomasNet's matching problem: doing so would not move Xometry's own economics, which run through Marketplace take rate.
3. **Xometry's own marketplace only works for a narrow, machine-quotable slice of manufacturing** (parts specifiable from a CAD file: CNC, sheet metal, injection molding, 3D printing) and solves it by inserting itself as the transacting counterparty at a 30-40 percent gross margin, which shops experience as extractive and adversarial ("race to the bottom"). It does not, and structurally cannot, serve full bill-of-materials sourcing, non-CAD-speccable goods, longer-term supply relationships, or cross-border trade relationships like Phil's US-Asia trading business, where the value is in matching and trust-building, not in Xometry brokering and owning the transaction.
4. **The remaining 500,000-profile "long tail" is real but inert.** ThomasNet's scale claim is mostly a stale directory of unmanaged listings, not a live, queryable supply graph. An agent that could actually parse a BOM, understand real capability/capacity/quality signals about suppliers (not just SIC-code self-tagging), and make a small number of high-fit introductions - without inserting itself as the transacting party and taking a 30%+ cut - would be solving a problem neither ThomasNet (no matching intelligence, declining traffic, deprioritized by its owner) nor Xometry (matching only within its own narrow brokered marketplace, and adversarial to the supply side) is currently solving.

## Sources

- https://finance.yahoo.com/news/xometry-acquires-thomas-accelerating-manufacturing-123000938.html
- https://investors.xometry.com/news-releases/news-release-details/xometry-acquires-thomas-accelerating-manufacturing-industrys
- https://www.thomasnet.com/insights/xometry-acquires-thomas-accelerating-manufacturing-industry-s-digital-transformation/
- https://www.globenewswire.com/fr/news-release/2021/12/08/2348206/0/en/Xometry-Acquires-Thomas-Accelerating-the-Manufacturing-Industry-s-Digital-Transformation.html
- https://www.dcadvisory.com/news-deals-insights/deal-announcements/dc-advisory-advised-thomas-publishing-company-on-its-sale-to-xometry/
- https://www.siia.net/we-have-a-common-vision-uphoff-says-xometry-acquires-thomas-in-huge-deal/
- https://en.wikipedia.org/wiki/Thomas_Register
- https://blog.thomasnet.com/ten-stats-you-didnt-know-about-thomas
- https://business.thomasnet.com/press-room/news-highlights/thomas-surpasses-1-million-registered-users
- https://www.businesswire.com/news/home/20200311005125/en/Thomasnet.com-Surpasses-1-Million-Registered-Users
- https://www.semrush.com/website/thomasnet.com/overview/
- https://www.similarweb.com/website/thomasnet.com/
- https://www.marketingmetricscorp.com/thomasnets-88-traffic-decline-unpacking-the-downfall-of-an-industrial-giant
- https://www.marketingmetricscorp.com/thomasnet-traffic-is-down-sharply-heres-where-it-went
- https://www.topbubbleindex.com/blog/thomasnet-pricing-reviews/
- https://www.globenewswire.com/en/news-release/2022/06/29/2471492/0/en/Xometry-Introduces-New-Digital-Sourcing-Tools-On-Thomasnet-com-For-Enterprise-Buyers-And-Unveils-New-Cloud-Based-Manufacturing-Execution-System-For-Suppliers.html
- https://www.glassdoor.com/Reviews/Employee-Review-Xometry-E1401575-RVW88122207.htm
- https://www.practicalmachinist.com/forum/threads/xometrys-take-grows-to-39-last-quarter.406671/
- https://www.practicalmachinist.com/forum/threads/xometry-who-is-doing-it.351883/
- https://www.practicalmachinist.com/forum/threads/xometry-prices.411079/
- https://www.practicalmachinist.com/forum/threads/xometry-quality-lately.418366/
- https://www.practicalmachinist.com/forum/threads/are-industrial-market-places-like-xometry-worth-the-time-for-finding-new-work.408809/page-2
- https://bowerycap.com/blog/insights/s-1-teardown-xometry
- https://investors.xometry.com/news-releases/news-release-details/xometry-reports-record-fourth-quarter-and-strong-full-year-2025
- https://3dprintingindustry.com/news/xometry-reports-record-q4-marketplace-revenue-and-improved-2025-results-249400/
- https://3dprint.com/324209/3d-printing-financials-xometry-reports-record-2025-results-and-ceo-transition/
- https://investors.xometry.com/news-releases/news-release-details/xometry-continues-rapid-expansion-global-supplier-base-more-4200